N ,N '-B is(trim ethylsilyl)benzam idinato-dichlorogold, Synthesis, Crystal Structure Ph -C(NSiMe3)2A uC l2 has been prepared by the reaction of N ,N ,N '-tris(trim ethylsilyl)-benzamidine with A uC 13 in CH 2C12 suspension, forming orange-red crystals, which were charac terized by an X-ray structure determ ination.Space group P2 Jn, Z = 4, 2358 observed independent reflexions, R = 0.028. Lattice dim en sions (20 °C); a = 695.9(3); b = 1576.1(3); c = 1830.9(3) pm; ß = 94.27(3)°. The com pound forms monomeric molecules, in which the gold atom is in a square planar arrangem ent of the two nitrogen atoms of the benzam idinato chelate (A u -N 201.6(7); 203.3(6) pm) and by two chlorine atom s (A u -Cl 227.9(3); 228.5(2) pm ).