C. Bianchini, A. Meli, A. Orlandini
Apr 14, 1981
Citations
0
Influential Citations
6
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract The coordination behaviour of the novel ligand 1,1-bis(diphenylphosphinomethyl)-1-diphenylphosphinoethylethane, CH3C(CH2PPh2)2CH2CH2PPh2, atriphos, and of the ligand 1,1,1-tris(diethylphosphinomethyl)ethane, CH3C(CH2PEt2)3, etriphos, toward cobalt(II) and nickel(II) chlorides has been investigated. The crystal and molecular structures of the complexes [Co3(atriphos)2Cl6] (1) and [Ni3(etriphos)2Cl6] · 2 CHCl3 (4) have been determined by standard X-ray methods. Crystal data for 1: orthorombic space group P21212, a = 27.309(10), b = 11.243(7), c = 13.927(7) A, Z = 2, R = 0.055. The structure consists of a non-linear trinuclear system of four-coordinate cobalt atoms each linked to two chlorine atoms and to two phosphorus atoms in a slightly distorted tetrahedral arrangement. Crystal data for 4: monoclinic, space group P21/n, a = 13.460(8), b = 23.359(10), c = 9.439(7) A, β = 99.2(1)°, Z = 2, R = 0.074. The structure consists of a linear trimeric array of nickel atoms, each square planar coordinated by two chlorine atoms and by two phosphorus atoms.