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Spectroscopic Identification of H 2 NSO and syn ‐ and anti ‐HNSOH Radicals
Author(s) -
Dong Xuelin,
Deng Guohai,
Wu Zhuang,
Xu Jian,
Lu Bo,
Trabelsi Tarek,
Francisco Joseph S.,
Zeng Xiaoqing
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201802738
Subject(s) - radical , matrix isolation , chemistry , flash vacuum pyrolysis , irradiation , dissociation (chemistry) , spectroscopy , analytical chemistry (journal) , pyrolysis , photochemistry , infrared spectroscopy , organic chemistry , physics , quantum mechanics , nuclear physics
The simplest aminosulfinyl radical H 2 NSO has been generated in the gas phase through flash vacuum pyrolysis of CF 3 S(O)NH 2 at approximately 1000 K. Upon UV light irradiation (365 nm), 1,3‐H migration occurs in H 2 NSO and furnishes an elusive N ‐amidyl radical HNSOH in syn and anti conformations in cryogenic matrices (N 2 or Ar, 15 K). Further 266 nm laser irradiation results in dissociation of HNSOH to H 2 O and SN and concomitant reformation of H 2 NSO in trace amount. The identification of H 2 NSO, syn ‐HNSOH, and anti ‐HNSOH by matrix‐isolation IR spectroscopy is supported by high‐level quantum chemical computations.