AM1 STUDY OF THE PHOTODECARBOXYLATION REACTION OF ACRYLIC ACID IN THE GAS PHASE

被引:2
作者
Fang Weihai [1 ]
Fang Decai [1 ]
Liu Ruozhuang [1 ]
机构
[1] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
关键词
Acrylic acid; Photodecarboxylation reaction; Semi-empirical self-consistent-field molecular ordital method;
D O I
10.3866/PKU.WHXB19930612
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
In this parper, the decarboxylation reaction of acrylic acid in the singlet and triplet excited states were investigated by semi-empirical self-consistent-field molecular orbital method (AM1). Our results support the mechanism of photolysis proposed th Robert. In combination with experiment, it can be deduced that the first step of photodecarboxylation reaction is in the singlet pathway, the second step in triplet pathway. The reactants, transition states, reaction intermediates and products corresponding to the singlet and triplet pathways were optimized by gradient techniques. All of the transition states and intermediates were confirmed by full vibrational analysis.
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页码:788 / 790
页数:3
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