van_den_hout_1980 ================= K\. D\. Van den Hout, P\. W\. Hermans, E\. Mazur and H\. F\. P\. Knaap, "The broadening and shift of the rotational Raman lines for hydrogen isotopes at low temperatures", Physica A 104, 509 \(1980\) `Source record `__ · :doc:`Catalogue ` · :doc:`Review register ` DOI: `10\.1016/0378\-4371\(80\)90012\-6 `__ **Source kind:** measurement **Recorded technique:** Pure rotational Raman scattering \(Stokes S0\(J\) lines\) at 20\-176 K \(pp\. 512\-516\)\: a single\-mode argon\-ion laser at 514\.5 nm \(about 1 W\), horizontally polarised, 90 degree scattering from a brass cell \(to 75 atm\) on a continuous\-flow cryostat \(stability 0\.1 K, platinum thermometer\); a Glan\-Thompson polariser, a 25 cm monochromator selecting one line and a pressure\-scanned Fabry\-Perot interferometer \(free spectral range 38\.95 or 75\.56 GHz, finesse about 35, instrumental half width about 0\.5 GHz\), photon counting\. The instrument removed by Fourier transform \(Eqs\. 3\-4\); the lines are Lorentzian \(Eqs\. 8\-9\) and the half width is taken from the exponential decay of F\_R\(t\)\. Densities 1000\-5000 mol/m3 \(about 20\-100 amagat, p\. 511\)\. Samples\: commercial nH2 \(25 % pH2, \> 99\.9 %\) and nD2 \(67 % oD2, \> 99\.6 %\); 90 % pH2 made on iron oxide at 20 K; 23 % oD2 \- 77 % pD2 by preferential adsorption on Al2O3; HD from LiAlH4 and D2O \(1\.2 % D2, 0\.2 % H2\)\. The ortho\-para composition monitored between runs \(drift usually \< 1 % per measurement, p\. 516\)\. **Materials in structured entries:** D2, H2 **Dataset quantities:** raman\_line\_shift, raman\_linewidth **Contents:** 33 datasets; 0 formulas. Curation notes -------------- Identity checked against the first page \(the library's title keeps the journal's 'ratational' misprint in the title field\: the printed title reads 'rotational'\)\. PAGES\: pdf page n is journal p\. 508 \+ n \(Table I p\. 526, Table II p\. 528, Table V p\. 533\)\. The Leiden group's low\-temperature continuation of keijser\_1974 \(its 293 K rows are Keijser's\); knaap\_1979 shows the same cross sections in figures\. MATERIALS\. Normal H2 \(Table I\: 25\.1 % pH2\), normal D2 \(66\.7 % oD2\), and the pure modifications oH2, pH2, oD2, pD2 extrapolated from the ortho\-para series \(Table II\), all as datasets of H2 or D2 with parameters\.ortho\_para\. HD is not a material \(notes below\)\. Only the Stokes S0\(J\) lines \(v = 0, J \-\> J \+ 2\)\. WIDTH CONVENTION\: HALF WIDTHS\. Eq\. \(1\), p\. 510\: I\(nu\) = \(I\_0/pi\) Delta nu\_1/2\(rho\) / \[\(nu \- nu\_R\(rho\)\)^2 \+ Delta nu\_1/2\(rho\)^2\], 'Delta nu\_1/2\(rho\) is the halfwidth\*', footnote \* \(p\. 510\)\: 'The halfwidth indicates half the \(full\) width at half height\.' Eq\. \(9\), p\. 521\: 1/\(2 pi tau\) = Delta nu\_1/2, 'the collisional halfwidth'\. The tables give Delta nu\_1/2/rho in MHz m3/mol, 'a 1 MHz m3/mol corresponds to 44\.62 MHz/amagat' \(Tables I, II, V; Fig\. 10\: 1 amagat = 44\.615 mol/m3, the 0 C amagat\)\: HWHM per mole per m3\. Checked\: Table I's 293 K rows x 44\.62 are keijser\_1974's Table I \(GHz/amagat HWHM\) to the printed digits, every line of H2, D2 and HD\. DICKE\. Eq\. \(5\), p\. 518\: Delta nu\_1/2^total = k^2 D\_R/2 pi \+ B rho, D\_R ~ 1/rho; 'A correction for the diffusional contribution was applied, using a value for the diffusional constant obtained from literature' \(H2 self\-diffusion from Harteck and Schmidt, Lipsicas, Hartland and Lipsicas, interpolated; HD and D2 by D ~ m^\-1/2, p\. 519\)\. The tabulated coefficients EXCLUDE the Dicke term \(D\_R 20 % above D changes them by \< 1 %, p\. 519\)\. UNCERTAINTIES\. Tables I\-II print \+\- per value; not described \(level not stated\)\. Laser mode hops\: error 'not larger than 1 %' \(p\. 517\)\. Line shifts\: no per\-value errors \(the 293 K ones are Cooper et al\.'s\); 'The accuracy of the data is discussed in the text' \(Table V\)\: two densities about a day apart, alignment drifts 'affected the line shift measurements severely' \(p\. 519\); the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol for nH2 against 'a typical Raman line shift' of 1 \(p\. 519\)\. Values printed in parentheses \(H2 S0\(3\) at 176 and 137 K, D2 S0\(4\) at 148\.5 K; HD\) are not explained\: excluded rows here\. SHIFT SIGN\. 'Delta nu\_S is the difference between the central line frequency at density rho and the frequency at zero density\. The sign of Delta nu\_S is negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532; also Eq\. \(2\), p\. 510\)\. A positive coefficient therefore moves the Stokes line towards the laser\: the Raman shift DEcreases\. herring\_1986 \(Table VI\) prints this paper's 77\.8 K S0\(0\), S0\(1\) \(0\.5, 0\.4 MHz m3/mol\) as \-22\.3 and \-17\.8 MHz/amagat \(delta nu = nu\_R\(rho\) \- nu\_R\(0\) of the Raman shift\)\: 0\.5 x 44\.62 = 22\.3, 0\.4 x 44\.62 = 17\.8, the opposite sign convention, consistent\. CROSS SECTIONS \(Tables III, IV, VI; no quantity, notes\)\. S\_RR = 2 pi Delta nu\_1/2/\(n \\), \ = \(8 k\_B T/pi mu\)^1/2 \(Eqs\. 10\-11\); the shift cross section likewise \(Eq\. 12\)\. Checked \(scratch, 2026\-09\-27\)\: Table I's 77\.8 K H2 S0\(0\), 0\.70 MHz m3/mol, with n = N\_A per mol/m3 and mu = 1\.008 amu gives 0\.57e\-20 m2, Table III's 0\.57\. Table III \(1e\-20 m2\), nH2 S0\(0\), S0\(1\)\: 293 K 0\.40, 0\.49; 77\.8 K 0\.57, 0\.90; 24\.8 K 1\.51, 2\.38; nD2 293 K 1\.12, 0\.89; 28\.3 K 4\.13, 3\.03\. Some Table III cells carry an extra superscript digit \(0\.39^4, 0\.40^8, 0\.64^2, 0\.38^4, 0\.44^6, 2\.44 \+\- 0\.1^5, 2\.2^5; the library reads the 8 and the second 4 as 'g' and 'd'\)\: an extra digit set small in the print \(image checked\), not transcribed\. Table VIII \(p\. 544\)\: the DWBA translational factors S\_202\(0\) and S\_224\(0\) fitted to the pure\-limit cross sections \(H2 24\.8 K\: 3\.2 \+\- 0\.2 and 19\.2, 13\.0, 16 from three lines; H2 77\.8 K\: 0\.9 and 5\.8, 5\.9, 6\.2; D2 28\.3 K\: 7\.0 and 35\.2, 39\.4, 34\.9; 1e\-20 m2\), with Eqs\. \(25\)\-\(27\)\: model parameters, notes only\. S\_RR ~ m/T for H2 and D2 below 80 K \(Fig\. 26, p\. 539\)\. HD \(not a material\)\. Table I \(MHz m3/mol, HWHM\), S0\(0\)\-S0\(4\)\: 293 K 9\.6, 8\.5, 7\.4, 6\.1, 4\.5 \(\+\- 0\.2; Keijser's\); 149\.3 K 4\.93, 4\.80, 4\.06, 3\.1; 78\.5 K 3\.03, 3\.09, 2\.94; 41\.2 K 2\.53, 2\.35; 27\.0 K 2\.91, 2\.33\. Table V shifts\: 149\.3 K \-1\.8, \-2\.2, \-1\.2, \(\-0\.1\); 78\.5 K \-1\.1, \-1\.5, \-0\.8; 41\.2 K \-0\.3, \-1\.1; 27\.0 K \(\-0\.5\), \(\-0\.8\)\. FIGURES \(not digitised\)\. Figs\. 10\-14\: half widths against density per temperature \(nH2, nD2, HD, 90 % pH2 at 24\.8 and 77\.8 K, 23 % oD2 at 28\.3 K\); Figs\. 15\-16\: coefficients against ortho\-para composition; Figs\. 17\-21\: cross sections against temperature; Figs\. 22\-24\: shift cross sections; Fig\. 27\: Moraal's DWBA against experiment at 293 K; Fig\. 28\: Coombe and Kohler's DWBA \(square well\) against experiment, 20\-300 K; Fig\. 29\: the HD S\_RR^101 estimate\. WHO REPRINTS IT\. herring\_1986's table5\_van\_den\_hout\_295K \(84, 104 MHz/amagat FWHM\) is Table I's 293 K row doubled and converted, i\.e\. Keijser et al\.'s values \(note b\); its table5\_van\_den\_hout\_80K \(63, 99\) is Table I's 77\.8 K S0\(0\), S0\(1\) \(0\.70, 1\.11 MHz m3/mol = 31\.2, 49\.5 MHz/amagat HWHM, x 2 = 62\.5, 99\.1 FWHM\); its table6\_van\_den\_hout\_80K \(\-22\.3, \-17\.8\) is Table V's 77\.8 K row with the sign reversed \(above\)\. herring\_1986 is another extraction's record\: the re\-point is reported\. **Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents. Datasets -------- van\_den\_hout\_1980/table1\_H2\_293K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_293K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_293K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "keijser_1974" ], "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 293, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 293 K, note b\: 'The data at 293 K are taken from ref\. 7' \(Keijser et al\. 1974, curated as keijser\_1974\)\: its Table I converted \(x 44\.62\: the same values to the printed digits\)\. HWHM broadening coefficients of S0\(0\), S0\(1\), S0\(2\), S0\(3\), S0\(4\), MHz m3/mol\. van\_den\_hout\_1980/table1\_H2\_176K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_176K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_176K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 176, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 176 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_H2\_137K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_137K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_137K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 137, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 137 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_H2\_77p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_77p8K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_77p8K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 77.8, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 77\.8 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), S0\(2\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_H2\_52p7K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_52p7K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_52p7K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 52.7, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 52\.7 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_H2\_35p0K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_35p0K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_35p0K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 35.0, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 35\.0 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_H2\_24p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_H2_24p8K", "material": "H2", "file": "H2/van_den_hout_1980__table1_H2_24p8K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 24.8, "ortho_para": "3:1" } } Table I \(p\. 526\), normal H2 \(25\.1 % pH2\), 24\.8 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_D2\_293K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_D2_293K", "material": "D2", "file": "D2/van_den_hout_1980__table1_D2_293K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "keijser_1974" ], "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 293, "ortho_para": "2:1" } } Table I \(p\. 526\), normal D2 \(66\.7 % oD2\), 293 K, note b\: 'The data at 293 K are taken from ref\. 7' \(Keijser et al\. 1974, curated as keijser\_1974\)\: its Table I converted \(x 44\.62\: the same values to the printed digits\)\. HWHM broadening coefficients of S0\(0\), S0\(1\), S0\(2\), S0\(3\), S0\(4\), S0\(5\), MHz m3/mol\. van\_den\_hout\_1980/table1\_D2\_148p5K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_D2_148p5K", "material": "D2", "file": "D2/van_den_hout_1980__table1_D2_148p5K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 148.5, "ortho_para": "2:1" } } Table I \(p\. 526\), normal D2 \(66\.7 % oD2\), 148\.5 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), S0\(4\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_D2\_77p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_D2_77p8K", "material": "D2", "file": "D2/van_den_hout_1980__table1_D2_77p8K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 77.8, "ortho_para": "2:1" } } Table I \(p\. 526\), normal D2 \(66\.7 % oD2\), 77\.8 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_D2\_42p9K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_D2_42p9K", "material": "D2", "file": "D2/van_den_hout_1980__table1_D2_42p9K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 42.9, "ortho_para": "2:1" } } Table I \(p\. 526\), normal D2 \(66\.7 % oD2\), 42\.9 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), S0\(2\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table1\_D2\_28p3K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_D2_28p3K", "material": "D2", "file": "D2/van_den_hout_1980__table1_D2_28p3K.csv", "table": "tbl_51fa3e7377dd", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 28.3, "ortho_para": "2:1" } } Table I \(p\. 526\), normal D2 \(66\.7 % oD2\), 28\.3 K\: HWHM collisional broadening coefficients Delta nu\_1/2/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), the slopes of the half widths against density \(Figs\. 10\-11\), corrected for the diffusional \(Dicke\) term k^2 D\_R/2 pi of Eq\. \(5\) with literature diffusion constants \(pp\. 518\-519\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table2\_oH2\_293K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_oH2_293K", "material": "H2", "file": "H2/van_den_hout_1980__table2_oH2_293K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "keijser_1974" ], "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 293, "ortho_para": "1:0 (the pure-ortho limit, extrapolated)" } } Table II \(p\. 528\), pure oH2 \(odd J\), extrapolated from the ortho\-para series, 293 K, note b\: 'taken from ref\. 7' \(Keijser et al\. 1974, curated as keijser\_1974\), whose pure\-modification limits it prints only as cross sections \(its Table IV\) and a figure \(its Fig\. 15\)\: consistent with its Table IV via Eq\. \(10\)\. HWHM broadening coefficients of S0\(0\), S0\(1\), S0\(2\), S0\(3\), S0\(4\), MHz m3/mol\. van\_den\_hout\_1980/table2\_oH2\_77p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_oH2_77p8K", "material": "H2", "file": "H2/van_den_hout_1980__table2_oH2_77p8K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 77.8, "ortho_para": "1:0 (the pure-ortho limit, extrapolated)" } } Table II \(p\. 528\), pure oH2 \(odd J\), extrapolated from the ortho\-para series, 77\.8 K\: HWHM broadening coefficients of S0\(0\), S0\(1\), S0\(2\), MHz m3/mol, extrapolated linearly to the pure modification from the ortho\-para series \(Figs\. 15\-16; H2 from nH2 and 90 % pH2, D2 from nD2 and 23 % oD2\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table2\_oH2\_24p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_oH2_24p8K", "material": "H2", "file": "H2/van_den_hout_1980__table2_oH2_24p8K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 24.8, "ortho_para": "1:0 (the pure-ortho limit, extrapolated)" } } Table II \(p\. 528\), pure oH2 \(odd J\), extrapolated from the ortho\-para series, 24\.8 K\: HWHM broadening coefficients of S0\(0\), S0\(1\), MHz m3/mol, extrapolated linearly to the pure modification from the ortho\-para series \(Figs\. 15\-16; H2 from nH2 and 90 % pH2, D2 from nD2 and 23 % oD2\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table2\_pH2\_293K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_pH2_293K", "material": "H2", "file": "H2/van_den_hout_1980__table2_pH2_293K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "keijser_1974" ], "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 293, "ortho_para": "0:1 (the pure-para limit, extrapolated)" } } Table II \(p\. 528\), pure pH2 \(even J\), extrapolated from the ortho\-para series, 293 K, note b\: 'taken from ref\. 7' \(Keijser et al\. 1974, curated as keijser\_1974\), whose pure\-modification limits it prints only as cross sections \(its Table IV\) and a figure \(its Fig\. 15\)\: consistent with its Table IV via Eq\. \(10\)\. HWHM broadening coefficients of S0\(0\), S0\(1\), S0\(2\), S0\(3\), S0\(4\), MHz m3/mol\. van\_den\_hout\_1980/table2\_pH2\_77p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_pH2_77p8K", "material": "H2", "file": "H2/van_den_hout_1980__table2_pH2_77p8K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 77.8, "ortho_para": "0:1 (the pure-para limit, extrapolated)" } } Table II \(p\. 528\), pure pH2 \(even J\), extrapolated from the ortho\-para series, 77\.8 K\: HWHM broadening coefficients of S0\(0\), S0\(1\), S0\(2\), MHz m3/mol, extrapolated linearly to the pure modification from the ortho\-para series \(Figs\. 15\-16; H2 from nH2 and 90 % pH2, D2 from nD2 and 23 % oD2\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table2\_pH2\_24p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_pH2_24p8K", "material": "H2", "file": "H2/van_den_hout_1980__table2_pH2_24p8K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 24.8, "ortho_para": "0:1 (the pure-para limit, extrapolated)" } } Table II \(p\. 528\), pure pH2 \(even J\), extrapolated from the ortho\-para series, 24\.8 K\: HWHM broadening coefficients of S0\(0\), S0\(1\), MHz m3/mol, extrapolated linearly to the pure modification from the ortho\-para series \(Figs\. 15\-16; H2 from nH2 and 90 % pH2, D2 from nD2 and 23 % oD2\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table2\_pD2\_28p3K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_pD2_28p3K", "material": "D2", "file": "D2/van_den_hout_1980__table2_pD2_28p3K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 28.3, "ortho_para": "0:1 (the pure-para limit, extrapolated)" } } Table II \(p\. 528\), pure pD2 \(odd J\), extrapolated from the ortho\-para series, 28\.3 K\: HWHM broadening coefficients of S0\(0\), S0\(1\), MHz m3/mol, extrapolated linearly to the pure modification from the ortho\-para series \(Figs\. 15\-16; H2 from nH2 and 90 % pH2, D2 from nD2 and 23 % oD2\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table2\_oD2\_28p3K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_oD2_28p3K", "material": "D2", "file": "D2/van_den_hout_1980__table2_oD2_28p3K.csv", "table": "tbl_b01b59957931", "quantity": "raman_linewidth", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "width": "hwhm", "perturber": "self", "temperature_k": 28.3, "ortho_para": "1:0 (the pure-ortho limit, extrapolated)" } } Table II \(p\. 528\), pure oD2 \(even J\), extrapolated from the ortho\-para series, 28\.3 K\: HWHM broadening coefficients of S0\(0\), S0\(1\), MHz m3/mol, extrapolated linearly to the pure modification from the ortho\-para series \(Figs\. 15\-16; H2 from nH2 and 90 % pH2, D2 from nD2 and 23 % oD2\)\. \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table5\_H2\_293K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_293K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_293K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "V. G. Cooper, A. D. May and B. K. Gupta, Can. J. Phys. 48, 725 (1970)" ], "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 293, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 293 K, note b\: 'The data at 293 K are taken from ref\. 21' \(Cooper, May and Gupta 1970\)\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\) in MHz m3/mol \(x 44\.62 = MHz/amagat\), negative 'when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\), i\.e\. to larger Raman shift\. The \+\- as printed \(level not stated\)\. van\_den\_hout\_1980/table5\_H2\_176K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_176K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_176K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "excluded_rows": { "S0(3)": "printed in parentheses (the paper does not say why; presumably less reliable)" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 176, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 176 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_137K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_137K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_137K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "excluded_rows": { "S0(3)": "printed in parentheses (the paper does not say why; presumably less reliable)" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 137, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 137 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), S0\(3\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_77p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_77p8K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_77p8K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 77.8, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 77\.8 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), S0\(2\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_52p7K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_52p7K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_52p7K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 52.7, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 52\.7 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_35p0K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_35p0K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_35p0K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 35.0, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 35\.0 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_27p7K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_27p7K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_27p7K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 27.7, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 27\.7 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_24p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_24p8K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_24p8K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 24.8, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 24\.8 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_H2\_20p2K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_H2_20p2K", "material": "H2", "file": "H2/van_den_hout_1980__table5_H2_20p2K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 20.2, "ortho_para": "3:1" } } Table V \(p\. 533\), normal H2 \(25\.1 % pH2\), 20\.2 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_D2\_148p5K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_D2_148p5K", "material": "D2", "file": "D2/van_den_hout_1980__table5_D2_148p5K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "excluded_rows": { "S0(4)": "printed in parentheses (the paper does not say why; presumably less reliable)" }, "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 148.5, "ortho_para": "2:1" } } Table V \(p\. 533\), normal D2 \(66\.7 % oD2\), 148\.5 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), S0\(4\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_D2\_77p8K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_D2_77p8K", "material": "D2", "file": "D2/van_den_hout_1980__table5_D2_77p8K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 77.8, "ortho_para": "2:1" } } Table V \(p\. 533\), normal D2 \(66\.7 % oD2\), 77\.8 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), S0\(2\), S0\(3\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_D2\_42p9K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_D2_42p9K", "material": "D2", "file": "D2/van_den_hout_1980__table5_D2_42p9K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 42.9, "ortho_para": "2:1" } } Table V \(p\. 533\), normal D2 \(66\.7 % oD2\), 42\.9 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. van\_den\_hout\_1980/table5\_D2\_28p3K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table5_D2_28p3K", "material": "D2", "file": "D2/van_den_hout_1980__table5_D2_28p3K.csv", "table": "tbl_cd5b5a338e81", "quantity": "raman_line_shift", "unit": "MHz m3/mol", "abscissa": "label", "use": "primary", "parameters": { "transition": "S0(J), v = 0, J -> J + 2, per row", "perturber": "self", "temperature_k": 28.3, "ortho_para": "2:1" } } Table V \(p\. 533\), normal D2 \(66\.7 % oD2\), 28\.3 K\: line\-shift coefficients Delta nu\_S/rho of S0\(0\), S0\(1\), MHz m3/mol \(x 44\.62 = MHz/amagat\), from the interferometer scanning pressure at two or more densities \(pp\. 519\-520\)\. Sign\: 'negative when the Raman line moves away from the exciting frequency with increasing density' \(p\. 532\)\: a positive coefficient moves the Stokes line towards the laser, i\.e\. LOWERS the Raman shift \(herring\_1986 prints this paper's 77\.8 K S0\(0\), S0\(1\) as \-22\.3, \-17\.8 MHz/amagat in the Raman\-shift sign\)\. No uncertainty printed; 'the accuracy of the data is discussed in the text' \(limited by alignment drifts between densities a day apart; the depolarised Rayleigh line's shift, zero in theory, came out 0 \+\- 0\.05 MHz m3/mol, p\. 519\)\. Formulas -------- No formulas are recorded. Corrections ----------- No dataset errata are recorded in this source record. Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the :doc:`review register ` for the checks and decisions.