Premium
The Photochemistry of Diazomethane‐Hydrogen Sulfide Mixtures. The Decomposition Rate of Chemically Activated Methanethiol
Author(s) -
Whang C. W.,
Kao H.L.,
Ho Shih Yeng
Publication year - 1980
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198000024
Subject(s) - methanethiol , diazomethane , chemistry , hydrogen sulfide , methylene , photochemistry , decomposition , radical , singlet state , dimethyl sulfide , sulfide , carbonyl sulfide , reaction rate constant , medicinal chemistry , organic chemistry , sulfur , kinetics , excited state , physics , quantum mechanics , nuclear physics
The photochemistry of diazomethane in presence of hydrogen sulfide gas has been studied at 4358 and 3660‐Å. Singlet methylene radicals react with hydrogen sulfide to from methanethiol which decomposes at lower pressures. The measured decomposition rate constants are 5.5×10 10 and 9.6×10 10 s −1 in 4358 and 3660‐Å systems, respectively. Singlet methylene inserts into a S‐H bond as 200 times fast as into a C‐H bond.