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 · Catalogue · 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 <v>), <v> = (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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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#
{
"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 review register for the checks and decisions.