Communication: Multi-mass velocity map imaging study of a ultraviolet photodissociation of dimethyl sulfide using single photon ionization and a PImMS2 sensor

被引:9
作者
Bain, Matthew [1 ]
Hansen, Christopher S. [2 ]
Ashfold, Michael N. R. [1 ]
机构
[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
[2] Univ New South Wales, Sch Chem, Sydney, NSW 2052, Australia
基金
英国工程与自然科学研究理事会;
关键词
ENHANCED MULTIPHOTON IONIZATION; MASS-SPECTROMETRY; MPI SPECTRA; DYNAMICS; CH3SCH3; PHOTOIONIZATION; DISTRIBUTIONS; SPECTROSCOPY; NM; REDUCTION;
D O I
10.1063/1.5048838
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
This study of the photodissociation of dimethyl sulfide at lambda = 227.5 nm demonstrates the opportunities (and some of the challenges) of product detection using vacuum ultraviolet photoionization combined with recently developed multi-mass imaging methods. The capability of imaging different charged products simultaneously allows determination of the primary fragmentation dynamics through, for example, product fragment momentum and angular distribution matching and reveals potential complications from dissociative ionization, product alignment-dependent photoionization probabilities, and the effects of space charging. Published by AIP Publishing.
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页数:5
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