Photodissociation dynamics of benzoic acid

被引：12

作者：

Dyakov, Yuri A. ^{[1
]}

Bagchi, Arnab ^{[1
,2
]}

Lee, Yuan T. ^{[1
,3
]}

Ni, Chi-Kung ^{[1
,4
]}

机构：

[1] Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan

[2] Acad Sinica, Taiwan Int Grad Program, Taipei 10617, Taiwan

[3] Natl Taiwan Univ, Dept Chem, Taipei 10764, Taiwan

[4] Natl Tsing Hua Univ, Dept Chem, Hsinchu, Taiwan

来源：

JOURNAL OF CHEMICAL PHYSICS | 2010年 / 132卷 / 01期

关键词：

ab initio calculations; organic compounds; photodissociation; DISSOCIATION DYNAMICS; ACRYLIC-ACID; OH FORMATION; MONOMER; STATE; SPECTROSCOPY; PHOTOLYSIS; SPECTRA; PRODUCT;

D O I：

10.1063/1.3274624

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：

The photodissociation of benzoic acid at 193 and 248 nm was investigated using multimass ion imaging techniques. Three dissociation channels were observed at 193 nm: (1) C6H5COOH -> C6H5+COOH, (2) C6H5COOH -> C6H5CO+OH, and (3) C6H5COOH -> C6H6+CO2. Only channels, (2) and (3), were observed at 248 nm. Comparisons of the ion intensities and photofragment translational energy distributions with the potential energies obtained from ab initio calculations and the branching ratios obtained from the Rice-Ramsperger-Kassel-Marcus theory suggest that the dissociation occurs on many electronic states.

引用

页数：5

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