bowering_1986 ============= N\. Böwering, M\. R\. Bruce and J\. W\. Keto, "Collisional deactivation of two\-photon laser excited xenon 5p5 6p\. I\. State\-to\-state reaction rates", J\. Chem\. Phys\. 84, 709\-714 \(1986\) `Source record `__ · :doc:`Catalogue ` · :doc:`Review register ` DOI: `10\.1063/1\.450567 `__ **Source kind:** measurement **Recorded technique:** Two\-photon excitation of Xe 6p\[1/2\]0, 6p\[3/2\]2 and 6p\[5/2\]2 \(Paschen 2p5, 2p6, 2p9\) from the ground state by a frequency\-doubled dye laser near 250 nm \(4 ns, 20 GHz\) in purified xenon at 5\-100 Torr; time\-integrated laser\-induced infrared fluorescence of the 6p \-\> 6s lines \(Table I\) of the excited and of the collisionally populated levels, through a 1 m Jobin\-Yvon monochromator in second order onto cooled RCA 8852 and Hamamatsu R632 photomultipliers, the relative efficiencies calibrated with an NBS\-traceable tungsten lamp; the VUV excimer fluorescence monitored to hold the laser on resonance\. The state\-to\-state rate constants follow from the intensity ratios by Eq\. \(4\), with Horiguchi et al\.'s branching fractions \(Ref\. 10\) and paper II's \(bowering\_1986b\) lifetimes and total rates \(for 2p7, 2p8 and 2p10 the weighted mean lifetimes of Refs\. 10 and 11\)\. Temperature not stated \(paper II\: 296 K\)\. **Materials in structured entries:** Xe **Dataset quantities:** collisional\_quenching\_rate\_coefficient **Contents:** 7 datasets; 0 formulas. Curation notes -------------- J\. Chem\. Phys\. 84\(2\), 709\-714 \(15 January 1986\) = PDF pages 2\-7 \(PDF page 1 is the AIP download cover; journal page = PDF page \+ 707\); a scanned \(raster\) PDF with an OCR text layer\. Identity checked on the first page of the article \(PDF p\. 2\: title 'Collisional deactivation of two\-photon laser excited xenon 5p5 6p\. I\. State\-to\-state reaction rates', N\. Böwering, M\. R\. Bruce and J\. W\. Keto, University of Texas at Austin, received 24 May 1985, accepted 17 September 1985, footer J\. Chem\. Phys\. 84 \(2\), 15 January 1986, 709\) on 2026\-10\-09\. Tables I\-III checked cell by cell against the table images and Table II's caption on the rendered page\. LEVELS\. Table I gives Paschen and Racah names \('used here interchangeably'\); NIST \(src/optmat/data/external/nist\_asd/Xe\_I\_levels\.tsv\)\: 2p5 = 6p\[1/2\]0 = 5p5\(2P\*3/2\)6p 2\[1/2\], J = 0 \(80118\.962 cm\-1\); 2p6 = 6p\[3/2\]2 = \(2P\*3/2\)6p 2\[3/2\], J = 2 \(79212\.465\); 2p7 = 6p\[3/2\]1 = 2\[3/2\], J = 1 \(78956\.031\); 2p8 = 6p\[5/2\]3 = 2\[5/2\], J = 3 \(78403\.061\); 2p9 = 6p\[5/2\]2 = 2\[5/2\], J = 2 \(78119\.798\); 2p10 = 6p\[1/2\]1 = 2\[1/2\], J = 1 \(77269\.145\); 1s2 = 6s'\[1/2\]1 = 5p5\(2P\*1/2\)6s 2\[1/2\]\*, J = 1 \(77185\.041\); 6s\[3/2\]2 and 6s\[3/2\]1 = \(2P\*3/2\)6s 2\[3/2\]\*, J = 2 and 1 \(67067\.547, 68045\.156\)\. Evidence\: Table I's ten wavelengths \(828\.0 to 1083\.8 nm\) are air wavelengths and equal NIST's vacuum wavelengths of those transitions \(Xe\_I\_lines\_nir\.tsv, TC\-985\) converted to air within 0\.05 nm \(script check\); and the 2p10 \- 1s2 gap, 'only 84 cm\-1' \(p\. 713\), is NIST's 84\.104 cm\-1\. TAKEN \(collisional\_quenching\_rate\_coefficient, TC\-1011; extraction script tools/extract/bowering\_1986\.py\)\: Table II \(p\. 711\), the state\-to\-state rate constants by xenon \(perturber self, order 2\) from the three two\-photon excited levels, one dataset per product level \(the channel\), the rows the reactants\: into 6p\[3/2\]2 \(k\_2p6\_Xe\), 6p\[3/2\]1 \(k\_2p7\_Xe\), 6p\[5/2\]3 \(k\_2p8\_Xe\), 6p\[5/2\]2 \(k\_2p9\_Xe\), 6p\[1/2\]1 \(k\_2p10\_Xe\) and 6s'\[1/2\]1 \(k\_1s2\_Xe\), 0\.069 to 46 x 10^\-12 cm3/s, primary; and the row Sigma\_j nu\_ij, the sum of the observed channels \(k\_sum\_Xe, check\)\. Uncertainty level not stated \(no 'standard deviation' in the paper; paper II's figure errors are 2 sigma\)\. 'b' \(no fluorescence detected\: 6p\[3/2\]2 and 6p\[5/2\]2 into 6p\[1/2\]0, 6p\[1/2\]0 and 6p\[3/2\]2 into 6p\[1/2\]1\) are not values; 'formation rates for the Xe 6p\[1/2\]0 state were too weak to be observed' \(p\. 711\)\. The rates were 'independent of, or only weakly dependent upon pressure\. In the latter case, the low pressure limit was taken' \(p\. 711\)\. The 6s'\[1/2\]1 channel is seen through its coupling to 6p\[1/2\]1 \(980 nm\), with 1/A\_j = tau\_2 = 110 ns \(p\. 712\); for 6p\[5/2\]2 the 980 nm signal was split into components I \(\-\> 2p10\) and II \(\-\> 1s2\) by paper II's appendix, component III \(\-\> 1s3\) too small to evaluate\. ERRATUM\: Table II's caption prints the unit as '\(10^\-2 cm3 s\-1\)'; it is 10^\-12 cm3 s\-1 \(scale errata on all seven datasets\)\. NOT TAKEN\: Table I's branching ratios \('From Ref\. 10', Horiguchi, Chang and Setser 1981; reproduced, and no quantity holds a branching fraction\); Table III's measured fractions \(ratios of Table II's rates, script check\) and the statistical model's predictions \(Eq\. 7, a model\); Figs\. 1\-4 \(schematics and potentials\)\. FINDING \(Table I's branching ratios against NIST, TC\-985; A over the sum of A from the level\)\: 2p6 0\.700 / 0\.300 \(NIST 0\.779 / 0\.221\); 2p7 0\.084 / 0\.915 \(0\.113 / 0\.887\); 2p9 0\.363 / 0\.637 \(0\.488 / 0\.512\); 2p10 0\.917 / 0\.093 \(0\.945 / 0\.055\); 2p5 0\.998 and 2p8 1\.000 \(NIST has A only for the one line\)\. The 2p9 split differs most \(NIST's two A values are both B\+\)\. FINDING \(against ku\_1986's Table III, the same transfers in xenon, 10^\-11 cm3/s; this paper's in brackets\)\: 2p6 \-\> 2p7 1\.3 \+\- 0\.2 \(0\.64 \+\- 0\.15\), \-\> 2p8 2\.1 \(2\.24 \+\- 0\.31\), \-\> 2p9 2\.8 \(2\.65 \+\- 0\.69\), \-\> 2p10 \< 0\.2 \('b'\); 2p9 \-\> 2p8 1\.1 \+\- 0\.2 \(0\.86 \+\- 0\.33\), \-\> 2p10 4\.5 \+\- 0\.2 \(4\.6 \+\- 1\.8\)\. They disagree on 6s'\[1/2\]1\: here 2p6 \-\> 1s2 3\.2 \+\- 1\.4 and 2p9 \-\> 1s2 2\.2 \+\- 0\.8, where Ku and Setser put 2p9 \-\> 1s2 \< 0\.2 and assign 1\.9 and 4\.0 to '1s3 or Xe\(6s\)'; both papers infer this channel from the slow 980 nm components\. DOUBTS \(printed inconsistencies; no taken value is corrected\)\: Table III's 6p\[5/2\]2 column \(1\.4e\-3, 7\.1e\-3, 0\.18, 0\.84; sum 1\.03\) does not reproduce from Table II \(0\.069, 0\.34, 8\.6, 46 over their sum 55\.0\: 1\.3e\-3, 6\.2e\-3, 0\.16, 0\.84\), while the other two columns do within 0\.006 \(script check\)\. Table I's 2p10 branching ratios sum to 1\.010\. TWO\-PHOTON DATA CITED, NOT IN THE LIBRARY\: G\. Inoue, J\. K\. Ku and D\. W\. Setser, J\. Chem\. Phys\. 81, 5760 \(1984\) \(lifetimes and Ar/Ne quenching of Xe 6p, 6p', 7p, 6d, laser\-excited from 6s\: the independent 6p' lifetimes that would test bruce\_1990 against NIST\); H\. Horiguchi, R\. S\. F\. Chang and D\. W\. Setser, J\. Chem\. Phys\. 75, 1207 \(1981\) \(Xe 6p lifetimes and Ar quenching, branching fractions\); L\. Allen, D\. G\. C\. Jones and D\. G\. Schofield, J\. Opt\. Soc\. Am\. 59, 842 \(1969\); N\. Sadeghi and J\. Sabbagh, Phys\. Rev\. A 16, 2336 \(1977\) \(6s' \-\> 2p10 transfer\); P\. Laporte, J\. L\. Subtil and M\. C\. Castex, in Spectral Line Shapes, Vol\. 2 \(de Gruyter, 1983\), p\. 583 \(Xe2 potentials from line shapes\)\. Held\: raymond\_1984 \(Ref\. 12\)\. **Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents. Datasets -------- bowering\_1986/k\_2p6\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_2p6_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_2p6_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "primary", "parameters": { "perturber": "self", "order": 2, "channel": "6p[3/2]2", "method": "two-photon excitation of the reactant, time-integrated relative fluorescence of the product (Eq. 4) at 5-100 Torr with paper II's total rates and lifetimes, low-pressure limit" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), product row 6p\[3/2\]2 \(2p6\)\: the state\-to\-state rate constants by xenon into it, from 6p\[1/2\]0, 1\.46 \+\- 0\.33, and 6p\[5/2\]2, 0\.069 \+\- 0\.060\. Rows are the reactants \(Racah\)\. The caption's '10^\-2 cm3 s\-1' is a misprint for 10^\-12 \(scale erratum\)\. Uncertainty level not stated\. bowering\_1986/k\_2p7\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_2p7_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_2p7_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "primary", "parameters": { "perturber": "self", "order": 2, "channel": "6p[3/2]1", "method": "two-photon excitation of the reactant, time-integrated relative fluorescence of the product (Eq. 4) at 5-100 Torr with paper II's total rates and lifetimes, low-pressure limit" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), product row 6p\[3/2\]1 \(2p7\)\: the state\-to\-state rate constants by xenon into it, from 6p\[1/2\]0, 0\.96 \+\- 0\.32; 6p\[3/2\]2, 6\.4 \+\- 1\.5; 6p\[5/2\]2, 0\.34 \+\- 0\.25\. Rows are the reactants \(Racah\)\. The caption's '10^\-2 cm3 s\-1' is a misprint for 10^\-12 \(scale erratum\)\. Uncertainty level not stated\. bowering\_1986/k\_2p8\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_2p8_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_2p8_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "primary", "parameters": { "perturber": "self", "order": 2, "channel": "6p[5/2]3", "method": "two-photon excitation of the reactant, time-integrated relative fluorescence of the product (Eq. 4) at 5-100 Torr with paper II's total rates and lifetimes, low-pressure limit" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), product row 6p\[5/2\]3 \(2p8\)\: the state\-to\-state rate constants by xenon into it, from 6p\[1/2\]0, 1\.74 \+\- 0\.62; 6p\[3/2\]2, 22\.4 \+\- 3\.1; 6p\[5/2\]2, 8\.6 \+\- 3\.3\. Rows are the reactants \(Racah\)\. The caption's '10^\-2 cm3 s\-1' is a misprint for 10^\-12 \(scale erratum\)\. Uncertainty level not stated\. bowering\_1986/k\_2p9\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_2p9_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_2p9_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "primary", "parameters": { "perturber": "self", "order": 2, "channel": "6p[5/2]2", "method": "two-photon excitation of the reactant, time-integrated relative fluorescence of the product (Eq. 4) at 5-100 Torr with paper II's total rates and lifetimes, low-pressure limit" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), product row 6p\[5/2\]2 \(2p9\)\: the state\-to\-state rate constants by xenon into it, from 6p\[1/2\]0, 1\.42 \+\- 1\.05, and 6p\[3/2\]2, 26\.5 \+\- 6\.9\. Rows are the reactants \(Racah\)\. The caption's '10^\-2 cm3 s\-1' is a misprint for 10^\-12 \(scale erratum\)\. Uncertainty level not stated\. bowering\_1986/k\_2p10\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_2p10_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_2p10_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "primary", "parameters": { "perturber": "self", "order": 2, "channel": "6p[1/2]1", "method": "two-photon excitation of the reactant, time-integrated relative fluorescence of the product (Eq. 4) at 5-100 Torr with paper II's total rates and lifetimes, low-pressure limit" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), product row 6p\[1/2\]1 \(2p10\)\: the state\-to\-state rate constants by xenon into it, from 6p\[5/2\]2 only, 46 \+\- 18 \(no 980 nm fast component from the other two, 'b'\); the 980 nm signal's component I, corrected for components II and III by the appendix of bowering\_1986b \(Eq\. A15\)\. Rows are the reactants \(Racah\)\. The caption's '10^\-2 cm3 s\-1' is a misprint for 10^\-12 \(scale erratum\)\. Uncertainty level not stated\. bowering\_1986/k\_1s2\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_1s2_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_1s2_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "primary", "parameters": { "perturber": "self", "order": 2, "channel": "6s'[1/2]1", "method": "two-photon excitation of the reactant, time-integrated relative fluorescence of the product (Eq. 4) at 5-100 Torr with paper II's total rates and lifetimes, low-pressure limit" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), product row 6s'\[1/2\]1 \(1s2\)\: the state\-to\-state rate constants by xenon into it, from 6p\[1/2\]0, 0\.99 \+\- 0\.70; 6p\[3/2\]2, 32 \+\- 14; 6p\[5/2\]2, 22 \+\- 8 \(footnote a\: 'coupled to 6p\[1/2\]1'; seen in the 980 nm emission of 6p\[1/2\]1 and evaluated with the coupled\-state lifetime tau\_2 = 110 ns, p\. 712; for 6p\[1/2\]0 and 6p\[3/2\]2 the whole 980 nm signal is assigned to this cascade\)\. Rows are the reactants \(Racah\)\. The caption's '10^\-2 cm3 s\-1' is a misprint for 10^\-12 \(scale erratum\)\. Uncertainty level not stated\. bowering\_1986/k\_sum\_Xe ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "k_sum_Xe", "material": "Xe", "file": "Xe/bowering_1986__k_sum_Xe.csv", "table": "tbl_9b11ef553745", "quantity": "collisional_quenching_rate_coefficient", "unit": "cm3/s", "scale": 0.01, "abscissa": "label", "use": "check", "parameters": { "perturber": "self", "order": 2, "channel": "sum of the observed channels (6p and 6s'[1/2]1)", "method": "sum of Table II's state-to-state rate constants" }, "uncertainty": { "column": true, "level": "not stated" } } Table II \(p\. 711\), row 'Sigma\_j nu\_ij'\: the sum of the observed product channels of each reactant, 6p\[1/2\]0 6\.6 \+\- 1\.5, 6p\[3/2\]2 87 \+\- 16, 6p\[5/2\]2 77 \+\- 18 \(the sums of the printed rates, script check\)\. Not the total removal coefficient \(the 6s, 1s3 and 5d channels are not observed\); a check against bowering\_1986b's totals, 5\.9 \+\- 3\.3, 92\.2 \+\- 4\.7 and 86\.8 \+\- 5\.9\. Scale erratum as for the channels\. Formulas -------- No formulas are recorded. Corrections ----------- .. code-block:: text [ { "dataset": "k_2p6_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." }, { "dataset": "k_2p7_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." }, { "dataset": "k_2p8_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." }, { "dataset": "k_2p9_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." }, { "dataset": "k_2p10_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." }, { "dataset": "k_1s2_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." }, { "dataset": "k_sum_Xe", "row": "", "column": "scale", "printed": "0.01", "corrected": "1e-12", "reason": "Table II's caption prints 'State-to-state reaction rate constants (10^-2 cm3 s-1)' (checked on the rendered page, PDF p. 4); the rates are in 10^-12 cm3 s-1.", "evidence": "The text compares their sums with 'the total rates of Table II, paper II' (p. 712), printed there in 10^-12 cm3 s-1 (bowering_1986b: 5.9, 92.2, 86.8 against the sums 6.6, 87, 77); 10^-2 cm3 s-1 would make them 10^7 to 10^9 times a gas-kinetic rate (about 3e-10 cm3 s-1); ku_1986's state-to-state rates for the same transfers are 10^-12 to 10^-11 cm3 s-1 (2p6 -> 2p8 2.1e-11 against 22.4e-12)." } ] 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.