Translational energy release in the reaction O(P-3)+H2S->H+HSO

被引：15

作者：

Quandt, RW ^{[1
]}

Wang, XB ^{[1
]}

Tsukiyama, K ^{[1
]}

Bersohn, R ^{[1
]}

机构：

[1] SCI UNIV TOKYO,DEPT CHEM,TOKYO 162,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 276卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(97)00785-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

O(P-3) atoms were generated by photodissociating NO2 at 351 and 308 nm in the presence of H2S. The average kinetic energy of the H and HSO reaction products is 9.4 +/- 0.6 and 12.0 +/- 0.7 kcal/mol respectively. These values are consistent with a value for the heat of formation at 0 K of HSO of -1 kcal/mol only if the HSO product is internally cold. The elongated S-O bond in the theoretical transition state and the reaction barrier imply that at least some energy will be left in the HSO radical. If the HSO product had an average of 3-4 kcal/mol of internal energy, the ab initio theoretical value for Delta(f)H(0) degrees(HSO) near -5 kcal/mol would be confirmed. (C) 1997 Published by Elsevier Science B.V.

引用

页码：122 / 126

页数：5

共 15 条

[1] THE ENTHALPY OF FORMATION OF THE HSO RADICAL [J].