
Zeitschrift fur Naturforschung, B: Chemical Sciences p. 453 - 458 (2000)
Update date:2022-08-04
Topics:
Weigand, Wolfgang
Wünsch, Ralf
Robl, Christian
Mloston, Grzegorz
N?th, Heinrich
Schmidt, Manfred
3,3,5,5-Tetraphenyl-1,2,4-trithiolane (1) reacts with twofold excess of (Ph3P)2Pt(η2-C2H4) (4) to give a 1:1 mixture of the complexes (Ph3P)2Pt(SCPh2S) (6a) and (Ph3P)2Pt(η2-Ph2C=S) (7a). Treatment of 3,3,6,6-tetraphenyl-1,2,4,5-tetrathiane (2) with a fourfold excess of 4 yields [Pt2(PPh3)4(μ-S)2] (8) and the platinum(0) compound 7a. The reaction of the 1,2,3,5,6-pentathiepane 3 with a fourfold excess of 4 affords a 1:1:1 mixture of 8, the platinum(0) complex 7b and the bis-thiolato platinum(II) complex 6b. The thioketone complexes 7a-c were formed in smooth reactions of 4 with the thioketones 5a-c. The molecular structure of (Ph3P)2Pt(η2-Ph2C=S) (7a) has been established by single-crystal X-ray analysis.
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