The trimetallic cluster W2CuAgS4(TDT)(2)(PPh3)(2) . CH2Cl2 (TDT=[S-2(C6H3)CH3](2-)) (2) has been prepared from the reaction of the well-defined molecule building block [W2S4(TDT)(2)](2-) (1) with AgNO3, CuBr and PPh3....The trimetallic cluster W2CuAgS4(TDT)(2)(PPh3)(2) . CH2Cl2 (TDT=[S-2(C6H3)CH3](2-)) (2) has been prepared from the reaction of the well-defined molecule building block [W2S4(TDT)(2)](2-) (1) with AgNO3, CuBr and PPh3. The structure contains a [W2CuAgS4](4+) distorted cubane-like core, Two types of metal-metal bonds exist in the core, One is W-W bond of which length is 0.2871(1) nm, the other is W-M' (M'=Cu or Ag) bends, whose mean distance is 0.2980 nm. The details of synthesis, structure, IR, UV-Vis and P-31 NMR spectra are reported. The crystallographic data are: space group P2(1)/n, with a=1.6987(4), b=1.7763(6), c=1.8918(5) nm, beta=98.54(2)degrees, V=5.645(3) nm(3), Z=4, and final R=0.043 for 6437 observed reflections.展开更多
基金Project supported by the National Natural Science Foundation of China and the Foundation of the State Key Laboratory of Structural Chemistry.
文摘The trimetallic cluster W2CuAgS4(TDT)(2)(PPh3)(2) . CH2Cl2 (TDT=[S-2(C6H3)CH3](2-)) (2) has been prepared from the reaction of the well-defined molecule building block [W2S4(TDT)(2)](2-) (1) with AgNO3, CuBr and PPh3. The structure contains a [W2CuAgS4](4+) distorted cubane-like core, Two types of metal-metal bonds exist in the core, One is W-W bond of which length is 0.2871(1) nm, the other is W-M' (M'=Cu or Ag) bends, whose mean distance is 0.2980 nm. The details of synthesis, structure, IR, UV-Vis and P-31 NMR spectra are reported. The crystallographic data are: space group P2(1)/n, with a=1.6987(4), b=1.7763(6), c=1.8918(5) nm, beta=98.54(2)degrees, V=5.645(3) nm(3), Z=4, and final R=0.043 for 6437 observed reflections.
