Abstract
The title compound has been prepared by the reaction of CuCl, with hexakis(trimethylsilyl)-benzdiamidine, in boiling acetonitrile in the presence of traces of water, as brown crystals, which were characterized by their IR spectrum as well as by an X-ray structure determination. Space group C 2/c, Z = 4, 2668 observed unique reflexions, R = 0.036. Lattice dimensions at –65 C: a = 879.5(2), b = 2441.1(3), c = 1241.4(3) pm, β = 95.24(3)°. In the structure four copper atoms surround an oxygen atom in a slightly distorted tetrahedral fashion; the chlorine atoms bridge adjacent copper atoms, and each copper atom is thus bound to three chlorine atoms. The nitrogen atoms of the acetonitrile complete the slightly distorted trigonal bipyramid around the copper atoms.
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