PHOTOELECTRON-SPECTRUM OF THE VINYL RADICAL - DOWNWARD REVISION OF THE C2H3 IONIZATION-POTENTIAL

被引：42

作者：

BLUSH, JA ^{[1
]}

CHEN, P ^{[1
]}

机构：

[1] HARVARD UNIV,MALLINCKRODT CHEM LAB,CAMBRIDGE,MA 02138

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 11期

关键词：

D O I：

10.1021/j100190a004

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：

We report the vacuum-UV photoelectron spectrum of the vinyl radical, C2H3, in a supersonic molecular beam. We find IP[C2H3] = 8.25(+0.20)-0.05 eV. Our ionization potential, which is lower than other reported values, combined with DELTA-H-degrees BDE,0[C2H3-H] = 105-110 kcal/mol, supports the conclusion from low-temperature ion-molecule chemistry that DELTA-H-degrees f,0[C2H3+] is several kcal/mol lower than the value derived from the dissociative photoionization of ethylene.

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页码：4138 / 4140

页数：3

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