Gold Coordination by a Tertiary Phosphine with Three Thioether Functions
نویسندگان
چکیده
Z. Naturforsch. 52 b, 217-220 (1997); received December 16, 1996 Gold(I) Coordination, Tris(phenylthiomethyl)phosphine, Ambidentate P/S3-Ligand The reaction of tris(phenylthiomethyl)phosphine with equimolecular amounts of [AuPPh3]+[BF4]~ affords the complex (tris(phenylthiomethyl)phosphine)(triphenylphosphine)-gold(I) tetrafluoroborate 1 in good yield. The X-ray diffraction analysis of this prod uct shows an unusual conformation with the three ChLSPh arms of the phosphine folded back towards the metal atom shielding the P-Au-P' unit. The reaction of the same substrate with Bis(tetrahydrothiophene)gold(I) perchlorate in a 1:1 molar ratio leads to the displacement of both weakly coordinated tht ligands, and a dimeric product [AuP(CH2SPh)3]2(C104)2 2 is obtained.
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