Kinetic and thermodynamic investigations of reactions of thiols, disulfides, hydrogen sulfide and sulfur with complexes of Cr, Mo, and W were done as the chemistry of transition metal complexes is important to a number of industrial processes. The reaction mechanism was influenced by the strength of the sulfur-sulfur or sulfur-hydrogen bond to be broken. The mechanism was also affected by ligand donor ability of the sulfur compound. The enthalpies of reaction with chalcogen donors [Y = S, Se, Te] were measured for a range of R3E complexes [E = P, As, Sb]. The reaction of hydrogen sulfide with the radical species was much faster than analogous reactions of thiols. Initial oxidative addition of one sulfur-hydrogen bond was observed. The mechanism of this reaction followed two pathways. This research was supported by the Petroleum Research Fund.
|Original language||English (US)|
|Number of pages||2|
|Journal||ACS Division of Fuel Chemistry, Preprints|
|State||Published - Jan 1 1999|
|Event||Proceedings of the 1999 218th ACS National Meeting - New Orleans, LA, United States|
Duration: Aug 22 1999 → Aug 26 1999
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