Near-threshold photoionization spectroscopy of the mono-terpenes limonene and carvone

被引：27

作者：

Garcia, GA

Nahon, L

Powis, I ^{[1
]}

机构：

[1] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England

[2] CEA, DRECAM, SPAM, F-91191 Gif Sur Yvette, France

[3] LFP, F-91191 Gif Sur Yvette, France

[4] Univ Paris 11, LURE, F-91898 Orsay, France

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2003年 / 225卷 / 03期

关键词：

near-threshold; breakdown; fragmentation; photoelectron spectroscopy; ionization energy;

D O I：

10.1016/S1387-3806(03)00004-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The photoionization of two representative mono-terpenes (R-limonene and R-carvone) has been investigated using low energy synchrotron radiation in the region from the threshold for ionization of these molecules up to 11 eV. Data from threshold photoelectron spectra are interpreted with the aid of Outer Valence Green's Function (OVGF) calculations to identify the character of the outermost orbitals and improved ionization potentials are deduced. Fragmentation of the parent ions is studied using threshold photoelectron-photoion coincidence (TPEPICO) time-of-flight (TOF) mass spectrometry and breakdown diagrams identifying the major products in this near-threshold region are presented. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：261 / 270

页数：10

共 17 条

[1] DENSITY-FUNCTIONAL THERMOCHEMISTRY .3. THE ROLE OF EXACT EXCHANGE [J].