Abstract
Reaction of the complex (PhCCPh)Co 2(CO) 6 with 1,1,1-tris(diphenylphosphinomethyl)ethane (triphos) under UV irradiation gave black-green crystals of (PhCCPh)Co 2(CO) 4(triphos). The structure of this complex was determined by X-ray diffraction. The crystals are triclinic, space group P 1 with cell dimensions a 11.277(4), b 12.505(4), c 18.357(6) Å, α 89.15(4), β 76.19(4), γ 85.35(4)°, Z = 2. The structure was solved by three-dimensional Patterson and Fourier synthesis and refined by least-squares techniques to a final conventional R factor of 0.086. The structure consists of discrete dinuclear molecules where the cobalt atoms are hexacoordinated in a distorted octahedral arrangement.
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