VUV photoionization of (CH3I)n (n=1-4) molecules

被引：9
|
作者：
Chen, J
Pei, LS
Shu, JN
Chen, CX
Ma, XX [1 ]
Shen, LS
Zhang, YW
机构：
[1] Univ Sci & Technol China, Dept Chem Phys, Open Lab Bond Select Chem, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 345卷 / 1-2期
关键词：
D O I：
10.1016/S0009-2614(01)00864-8
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 photoionization efficiency (PIE) spectra of the ions produced by the VUV synchrotron radiation photoionization of (CH3I)(n) (n = 1-4) molecules in the photon energy range of 8-35 eV have been measured by using time-off-light (TOF) mass spectrometer with supersonic cooling techniques. The appearance potentials (APs) of all the observed fragment ions have been determined from the PIE curves. Based on these data, the bond energies (D-0), standard formation enthalpies (Delta (f)H(0)degrees) and proton affinities (PA(0)) of the related fragments were obtained. Several autoionization structures of CH3I in the PIE spectrum of CH3I+ were assigned. (C) 2001 Elsevier Science BY. All rights reserved.
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页码：57 / 64
页数：8
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