Study of the Photodissociation Process of ClC(O)SCH3 Using both Synchrotron Radiation and HeI Photoelectron Spectroscopy in the Valence Region

被引：9
作者：
Gerones, Mariana [1 ]
Erben, Mauricio F. [1 ]
Ge, Maofa [3 ]
Cavasso Filho, Reinaldo L. [4 ]
Romano, Rosana M. [1 ]
Della Vedova, Carlos O. [1 ,2 ]
机构：
[1] Univ Nacl La Plata, Fac Ciencias Exactas, Dept Quim, CEQUINOR CONICET UNLP, RA-1900 La Plata, Buenos Aires, Argentina
[2] UNLP CIC CONICET, LaSeISiC, RA-1903 Gonnet, Argentina
[3] Chinese Acad Sci, State Key Lab Struct Chem Unstable & Stable Speci, BNLMS, Inst Chem, Beijing 100080, Peoples R China
[4] Univ Fed ABC, BR-09090400 Sao Paulo, Brazil
来源：
JOURNAL OF PHYSICAL CHEMISTRY A | 2010年 / 114卷 / 31期
关键词：
MONOCHROMATOR TGM BEAMLINE; S-ALKYL THIOFORMATES; DISSOCIATIVE PHOTOIONIZATION; MATRIX PHOTOCHEMISTRY; IONIC FRAGMENTATION; THIOACETIC ACID; MOLECULAR-IONS; SULFUR; 2P; THIOCYANATE; DYNAMICS;
D O I：
10.1021/jp102179w
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 simultaneous evaluation of the PES and valence synchrotron photoionization studies complemented by the results of quantum chemical calculations offers unusually detailed insights into the valence ionization processes of small covalent molecules. Thus, methyl thiochloroformate, ClC(O)SCH3, has been investigated by using results from both photoelectron spectroscopy (PES) and synchrotron radiation in the valence energy range. In an additional series of experiments, total ion yield (TIY) and photoelectron-photoion coincidence (PEPICO) spectra have been recorded. Furthermore, the relative yields for ionic fragments have been determined as a function of the photon energy. Vibronic structure has been observed in the TIY spectrum recorded in the synchrotron experiments. The photodissociation behavior of ClC(O)SCH3 can be divided into two well-defined energy regions.
引用
收藏
页码：8049 / 8055
页数：7
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