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Metal Complexes of Functionalized Sulfur-Containing Ligands, III. - Reactions of (Ph3P)2Pt(η2-C2H4) with Acyclic and Cyclic Thiosulfinates: Platinum(II)-thiolato Complexes with Sulfenato Ligands. Crystal Structure Determination of (4-Sulfido-1-butanesulfenato-S,S')bis(triphenylphos...
Weigand, Wolfgang,Bosl, Gabriele,Robl, Christian,Amrein, Walter
, p. 1047 - 1052 (2007/10/02)
Oxidative addition of acyclic thiosulfinates R'-S(O)-S-R (1a: R' = R = CH3; 1b: R' = R = Ph; 1c: R' = R = p-CH3C6H4; 1d: R' = p-ClC6H4, R = C6H5) to (Ph3P)2Pt(η2-C2H4) (4) leads to the monomeric trans-configurated complexes (Ph3P)2Pt(SR) (5a-d) which loose one PPh3 ligand in solution and form the dimetallic thiolato-bridged compounds (μ-SR)>2.The cyclic thiosulfinates 1,2-dithiane S-oxide (2) and 1,4-dihydro-2,3-benzodithiine S-oxide (3) react with 4 to yield the monomeric seven-membered chelate (7) and the dimetallic complex 2 (8), respectively.In 7, characterized by X-ray diffraction, a tetrahedral distortion of the square planar coordination of the platinum(II) atoms is remarkable; the planes Pt,P(1),P(2) and Pt,S(1),S(2) form an angle of 16.1 deg.Key Words: Thiosulfinates / Thiolato complexes / Sulfenato complexes / Platinum complexes
