Synthesis and structure of palladium, platinum and gold complexes: [Ph3PCH2CH2PPh3]2+ [PdCl3DMSO]-2, [Ph3PCH2CH2PPh3]2+ [PtCl6]2- · 4 DMSO, [Ph3PCH2CH2PPh3]2+ [AuCl4]-2 и [Ph3PCH2CH2PPh3]2+ [AuCl2]-2

The reaction of dichloride bis-1,2-triphenylphosphinetylene with palladium(II) chloride (1:2 mol.), hydrohexachloroplatinum acid (1:1 mol.) in dimethylsulfoxide, and hydrochloroauric acid (1:2 mol.) in acetone and dimethylsulfoxide has synthesized the complexes [Ph3PCH2CH2PPh3]2+[PdCl3DMSO]-2 (I), [Ph3PCH2CH2PPh3]2+[PtCl6]2-·4DMSO (II), [Ph3PCH2CH2PPh3]2+[AuCl4]-2 (III) and [Ph3PCH2CH2PPh3]2+[AuCl2]-2 (IV), respectively. Phosphorus atoms of the cations of complexes I-IV, according to the X-ray diffraction analysis, have a slightly distorted tetrahedral coordination (CPC angles are 106.24(9)-113.74(10)°), the P-C bond lengths are 1.779(6)-1.828(6) A. In the planar complex anions of the complex (I) (SPdCl angles are 87.16(2), 92.554(19)°, ClPdCl angles are 89.45(2), 90.95(2)°) the coordination bond between palladium and dimethylsulfoxide ligand results through the sulfur atom (Pd-S 2.2508(6) A), Pd-Cl bond lengths are in the range 2.3019(5)-2.3218(6) A. Platinum atoms in the anions of the complex (II) have an octahedral coordination (ClPtCl angles are 89.19(6)-91.45(6)°), Pt-Cl bond lengths are 2.3028(13)-2.3252(11) A. The square coordination of the gold cation in III is but little distorted: ClAuCl angles are equal to 88.68(7)-90.80(7)°, Au-Cl bond lengths are 2.2691(18)-2.2934(19) A. In the virtually linear anion IV (ClAuCl angles are 177.46(4) and 178.96(4)°) Au-Cl bond lengths vary in the range 2.2385(10)-2.2557(11) A.