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Mass‐selected IR‐VUV (118 nm) spectroscopic studies of radicals, aliphatic molecules, and their clusters
Author(s) -
Hu Yongjun,
Guan Jiwen,
Bernstein Elliot R.
Publication year - 2013
Publication title -
mass spectrometry reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.035
H-Index - 126
eISSN - 1098-2787
pISSN - 0277-7037
DOI - 10.1002/mas.21387
Subject(s) - chemistry , radical , mass spectrometry , spectroscopy , molecule , ionization , photoionization , photochemistry , ion , analytical chemistry (journal) , ionization energy , organic chemistry , physics , chromatography , quantum mechanics
Abstract Mass‐selected IR plus UV/VUV spectroscopy and mass spectrometry have been coupled into a powerful technique to investigate chemical, physical, structural, and electronic properties of radicals, molecules, and clusters. Advantages of the use of vacuum ultraviolet (VUV) radiation to create ions for mass spectrometry are its application to nearly all compounds with ionization potentials below the energy of a single VUV photon, its circumventing the requirement of UV chromophore group, its inability to ionize background gases, and its greatly reduced fragmenting capabilities. In this review, mass‐selected IR plus VUV (118 nm) spectroscopy is introduced first in a general manner. Selected application examples of this spectroscopy are presented, which include the detections and structural analysis of radicals, molecules, and molecular clusters in a supersonic jet. © 2013 Wiley Periodicals, Inc. Mass Spec Rev 32:484–501, 2013