Pentahalophenyl ethylxante complexes of platinum(II). Structures of (NBu4)[Pt(C6F5)2(S2COEt)] and (NBu4)2{Pt4(C6F5)8[(μ[in3]-S)SCOEt]2}. Unprecedented coordination of the xanthate ligands in the tetranuclear complex
摘要:
Novel anionic xanthate complexes of platinum(II) with the xanthate ligands displaying different coordination modes have been prepared: (a) mononuclear complexes (NBu(4))[Pt(C(6)X(5))(2)(S(2)COEt)] (X = F (1) or Cl (2)), where the xanthate ligand acts as a chelate; (b) mononuclear complexes (NBu(4))[Pt(C(6)X(5))(2)(SC(S)OEt)PPh(3)] (X = F (3) or Cl (4)) containing monodentate SC(S)OEt ligands; and (c) tetranuclear complexes (NBu(4))(2){Pt-4(C(6)X(5))(8)[(mu(3)-S)SCOEt](2)} (X = F (5) or Cl (6)), where one of the S atoms bridges three platinum centres, an unprecedented bonding mode for the xanthate ligand. The structures of complexes 1 and 5 have been established by single crystal X-ray diffraction. Compound 1 is triclinic, space group P (1) over bar, with a = 9.472(1), b = 11.005(2), c = 18.561(2) Angstrom, alpha = 75.90(1), beta = 81.23(1), gamma = 75.99(1)degrees, V = 1811.7(4) Angstrom(3) and Z = 2. The structure was refined to residuals of R = 0.0299 and R(w) = 0.0419. Complex 5 is also triclinic, space group P (1) over bar, with a = 11.121(1), b = 15.184(1), c = 16.722(1) Angstrom, alpha = 64.17(1), beta = 80.56(1), gamma = 88.41(1)degrees, V = 2504(1) Angstrom(3) and Z = 1. The structure was refined to residuals of R = 0.0409 and R(w) = 0.0417.
Pentahalophenyl ethylxante complexes of platinum(II). Structures of (NBu4)[Pt(C6F5)2(S2COEt)] and (NBu4)2{Pt4(C6F5)8[(μ[in3]-S)SCOEt]2}. Unprecedented coordination of the xanthate ligands in the tetranuclear complex
摘要:
Novel anionic xanthate complexes of platinum(II) with the xanthate ligands displaying different coordination modes have been prepared: (a) mononuclear complexes (NBu(4))[Pt(C(6)X(5))(2)(S(2)COEt)] (X = F (1) or Cl (2)), where the xanthate ligand acts as a chelate; (b) mononuclear complexes (NBu(4))[Pt(C(6)X(5))(2)(SC(S)OEt)PPh(3)] (X = F (3) or Cl (4)) containing monodentate SC(S)OEt ligands; and (c) tetranuclear complexes (NBu(4))(2){Pt-4(C(6)X(5))(8)[(mu(3)-S)SCOEt](2)} (X = F (5) or Cl (6)), where one of the S atoms bridges three platinum centres, an unprecedented bonding mode for the xanthate ligand. The structures of complexes 1 and 5 have been established by single crystal X-ray diffraction. Compound 1 is triclinic, space group P (1) over bar, with a = 9.472(1), b = 11.005(2), c = 18.561(2) Angstrom, alpha = 75.90(1), beta = 81.23(1), gamma = 75.99(1)degrees, V = 1811.7(4) Angstrom(3) and Z = 2. The structure was refined to residuals of R = 0.0299 and R(w) = 0.0419. Complex 5 is also triclinic, space group P (1) over bar, with a = 11.121(1), b = 15.184(1), c = 16.722(1) Angstrom, alpha = 64.17(1), beta = 80.56(1), gamma = 88.41(1)degrees, V = 2504(1) Angstrom(3) and Z = 1. The structure was refined to residuals of R = 0.0409 and R(w) = 0.0417.