Simultaneous Ionization-Detected Stimulated Raman and Visible-Visible-Ultraviolet Hole-Burning Spectra of Two Tryptamine Conformers

被引：20

作者：

Mayorkas, Nitzan ^{[1
]}

Izbitski, Shay ^{[1
]}

Bernat, Amir ^{[1
]}

Bar, Ilana ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2012年 / 3卷 / 05期

基金：

以色列科学基金会;

关键词：

GAS-PHASE; CONFORMATIONAL ISOMERIZATION; ELECTRONIC SPECTROSCOPY; BIOMOLECULES; CLUSTERS; LASER; MOLECULES;

D O I：

10.1021/jz300026a

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：

A key first step toward probing structures and interactions of individual conformers of isolated flexible molecules is uncovering their characteristic spectral signatures. Here, conformation-specific ionization-detected stimulated Raman (IDSR) and visible-visible-ultraviolet hole-burning spectra were measured simultaneously to determine the unique signatures of the two most stable conformers of tryptamine in the gas phase. These signatures together with the comparison of the IDSR spectra to the computationally predicted Raman spectra assisted in their characterization and structural identification. This new approach offers high selectivity and is foreseen to be an improved diagnostic tool for dissection of conformers of flexible molecules. SECTION: Kinetics, Spectroscopy

引用

页码：603 / 607

页数：5

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