401 Journal of Organvmetallic Chemistry 310 (1986) 401409 Ekevier Sequoia S.A., Lausanne - Printed in The Netherlands zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPON SYlVTHESIS OF MIXED DIARYLGOLD(III) COMPLEXES. CRYSTAL STRUCI’URE OF cii-[24PHENYLAZO)PHENYL][2- {@IME~O)ME’IMYL}PHENYL]GOLD(III) TETRACHLOROAURATEJ * JOSE VICENTE*, MARIA-TERESA CHICOTE, MARIA D. BERMUDEZ, M.J. SANCHEZ-SANTANO, Departamento de Quimica Inorgcinica, Universidad de Murcia, 3ooo1 Murcia (Spain) PETER G. JONES, CHRISTA FITTSCHEN and GEORGE M. SHELDRICK Institut frii Anorganische Chemie der Universitiit, Tammannstrasse 4, D-3400 GijtIingen (F. R G.) (Received February lOtb, 1986) The reaction (1: 1) between [Au(2-C,H,CH,NMe,)ClJ and [Hg(ZGH,- N=NPh),] gives the complex [(ZPhN=NC,H,)Au(2-C,H,CH,NMe,)Cl], which on treatment with AgClO, gives [(ZPhN=NGH,)Au(2-GH,CH,NMe,)]ClO,. From this complex, the species [(ZPhN=NC,H,)Au(2C,H,CH,NMe,)X] (X = CH,COO, CN), or [(2-PhNkNGH,)Au(2C,H,CH,NMe,)L] (L = PPh,, py) are obtained by reaction with the corresponding RX salts or neutral ligands. The crystal structure of [(2-PhN=NC,H,)Au(2-CaH,CH&M~)][AuCl,] (ob- tained by metathesis between the corresponding perchlorate and tetramethylam- monium salts) has been determined; the cation displays square-planar coordination with two cis-nitrogen (Au-N: 2.166(15), 2.140(14) A) and two cis-carbon (Au-C: 2.021(16), 2.033(17) A) atoms bonded to the gold atom. zyxwvutsrqponmlkjihgfedcbaZYXWVUTS Introduction Novel gold complexes can be prepared using organomercury compounds; we reported such ‘one-pot’ syntheses of [Au(R)Cl]- (R = o-, M-, p-GH,NO,) [l], [Au(R),Cl,]- (R = &H,NO,, 2-CH,,6-O,NC,H,) [2], [Ati(2-GH,N=NPh)ClJ [3], [Au(2-C,H,CH,NMQ)C~J [4] or [(2-PhN=NGH,)Au(2-CaH,N=NPh)Cl] [5] from [AuCl,]-, [AuCl,]- or [AuCl,(tht)] (tht = tetrahydrothiophene). The result of * Dedicated to Prof. Rafael Us& on tbe occasion of his 60th birthday. 0022-328X/86/$03.50 0 1986 Elsevier Sequoia S.A.