A. Pinkerton, R. Cavell
May 1, 1971
Citations
0
Influential Citations
11
Citations
Journal
Journal of the American Chemical Society
Abstract
Abstract : Bis(trifluoromethyl)iodophosphine sulfide reacts with limited quantities of mercury to give the diphosphorus compound (CF3)2P(S-P(CF3)2 in which the phosphorus atoms are bridged by a sulfur atom. This same compound is better synthesized from the reaction of bis(trifluoromethyl)dithiophosphinic acid with either dimethylaminobis(trifluoromethyl)phosphine or with chlorobis(trifluoromethyl)phosphine. The mixed-valence compound is stable to air or sulfur oxidation but reacts with hydrogrn halides, halogens, and mercury. Hydrolysis by water and alkaline solutions gave 1 and 3 mol of CF3H, respectively per mole of compound. The diphosphine tetrasulfide, (CF3)2P(S)SSP(S)(CF3)2, was best prepared by bromination of salts of bis(trifluoromethyl)dithiophosphnic acid. The tetrasulfide also reacted with mercury, halogens, hydrogen halides, and hydrogen sulfide, but not with oxygen or sulfur. A simpler synthesis of (CF3)2P(S)SH is also described. (Author)