Spectroscopic Separation of the Methyl Internal-Rotational Isomers of Thioanisole Isotopomers (C6H5S-CH2D and C6H5S-CHD2)

被引：9

作者：

Lee, Jeongmook ^{[1
]}

Kim, So-Yeon ^{[1
]}

Kim, Sang Kyu ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem, Taejon 305701, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2014年 / 118卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

RESOLVED ELECTRONIC-SPECTRA; EXCITED-STATE; DYNAMICS; FIELD; FLUOROTOLUENE; COMPLEXES; MODEL;

D O I：

10.1021/jp5003676

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：

Two distinct rotational isomers of thioanisole-d(1) (C6H5S-CH2D) and thioanisole-d(2) (C6H5S-CHD2) with respect to the internal rotation of the methyl moiety have been identified and characterized spectroscopically using the resonantly enhanced two photon ionization, UV-UV hole burning, and slow-electron velocity map imaging techniques. From the statistical weights, the definite assignment for the specific rotational isomer of each isotopomer has been successfully done, providing isomer-specific ionization energies and vibrational frequencies of S-1/D-0 states. Detailed molecular structures, the methyl internal-rotor barrier, and normal-mode descriptions for selective vibrations are discussed with the aid of

引用

页码：1850 / 1857

页数：8

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