Cu₂[Ph-C(NSiMe₃)*<sub />]₂, ein Amidinatokomplex mit kurzem Cu ··· Cu-Abstand / Cu₂[Ph —C(NSiMe3)2]2, an Amidinato Complex with a Short Cu - Cu Distance

Abstract

Abstract The copper(I)amidinato complex Cu 2 [Ph-C(NSiMe 3 ) 2 ] ; has been prepared by the reaction of CuCl with N.N,N'-tris(trimethylsilyl)benzamidine in boiling acetonitrile. forming white crystals. The compound was characterized by its IR spectrum as well as by an X-ray structure determina-tion. Crystal data: space group P1̄, Z = 2 (2851 observed independent reflexions, R = 0.047). Lattice dimensions at 20 °C: a = 1135.0(3); b = 1219.6(4); c = 1372.4(4) pm; a = 106.74(3)°; β= 107.92(4)°; y = 91.40(4)°. The compound forms dimeric molecules with a short Cu···contact of 242 pm and two chelating amidinato ligands with Cu-N bond lengths of (averaged) 189.0 pm and bond angles N -C-N of 124.1°.