Quenching of triplet vinylidene radicals by helium
Triplet vinylidene radicals, produced in the vacuum-ultraviolet photolysis of acetylene, are observed in absorption at 137.4 nm. The lifetime in the presence of helium, for both the protonated and deuterated species, has been determined. Expressed as a bimolecular rate constant the values are k He H...
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| Published in | Chemical physics letters Vol. 94; no. 2; pp. 240 - 242 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.01.1983
|
| Online Access | Get full text |
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| Abstract | Triplet vinylidene radicals, produced in the vacuum-ultraviolet photolysis of acetylene, are observed in absorption at 137.4 nm. The lifetime in the presence of helium, for both the protonated and deuterated species, has been determined. Expressed as a bimolecular rate constant the values are
k
He
H = (1.3 ± 0.3) × 10
−14 cm
3 molecule
−1 s
−1 and
k
He
D = (2.4 ± 0.4 × 10
−15 cm
3 molecule
−1 s
−1. An upper limit for removal by acetylene has been deduced. |
|---|---|
| AbstractList | Triplet vinylidene radicals, produced in the vacuum-ultraviolet photolysis of acetylene, are observed in absorption at 137.4 nm. The lifetime in the presence of helium, for both the protonated and deuterated species, has been determined. Expressed as a bimolecular rate constant the values are
k
He
H = (1.3 ± 0.3) × 10
−14 cm
3 molecule
−1 s
−1 and
k
He
D = (2.4 ± 0.4 × 10
−15 cm
3 molecule
−1 s
−1. An upper limit for removal by acetylene has been deduced. |
| Author | Laufer, Allan H. |
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| CitedBy_id | crossref_primary_10_1016_S0166_1280_00_00344_4 crossref_primary_10_1063_1_457415 crossref_primary_10_1016_0047_2670_84_80043_X crossref_primary_10_1016_0009_2614_96_01023_8 crossref_primary_10_1016_0168_1176_89_83049_6 crossref_primary_10_1063_1_449509 crossref_primary_10_1021_cr030039x crossref_primary_10_1016_0009_2614_89_87115_5 crossref_primary_10_1021_jp984311w crossref_primary_10_1063_1_464980 crossref_primary_10_1016_j_icarus_2014_09_039 crossref_primary_10_1246_bcsj_69_71 crossref_primary_10_1016_0009_2614_83_80698_8 crossref_primary_10_1063_1_451855 |
| Cites_doi | 10.1063/1.443064 10.1021/ja00398a005 10.1021/ja00493a006 10.1021/ar50140a004 10.1063/1.439846 10.1021/ja00777a032 10.1016/0009-2614(81)85004-X 10.1016/0301-0104(81)85026-4 |
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| References | Osamura, Schaefer (BIB8) 1981; 79 Ashfold, Fullstone, Hancock, Ketley (BIB7) 1981; 55 Conrad, Schaefer (BIB5) 1978; 100 Davis, Goddard, Harding (BIB9) 1977; 99 Schaefer (BIB6) 1979; 12 Laufer (BIB2) 1982; 76 Laufer (BIB1) 1980; 73 Skell, Fagone, Klabunde (BIB4) 1972; 94 Osamura, Schaefer, Gray, Miller (BIB3) 1981; 103 Conrad (10.1016/0009-2614(83)87583-6_BIB5) 1978; 100 Schaefer (10.1016/0009-2614(83)87583-6_BIB6) 1979; 12 Ashfold (10.1016/0009-2614(83)87583-6_BIB7) 1981; 55 Laufer (10.1016/0009-2614(83)87583-6_BIB2) 1982; 76 Laufer (10.1016/0009-2614(83)87583-6_BIB1) 1980; 73 Osamura (10.1016/0009-2614(83)87583-6_BIB8) 1981; 79 Osamura (10.1016/0009-2614(83)87583-6_BIB3) 1981; 103 Davis (10.1016/0009-2614(83)87583-6_BIB9) 1977; 99 Skell (10.1016/0009-2614(83)87583-6_BIB4) 1972; 94 |
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