Bis(1,2,3‐thiadiazole)s as Precursors in the Synthesis of Bis(alkynethiolate)gold(I) Derivatives

Abstract

Abstract The cleavage of bis(1,2,3‐thiadiazole)s in the presence of strong bases in situ gives bis(alkynethiolate)s, which provide bis(alkynethiolate)gold(I) derivatives with the general formula [Au 2 (S–C≡C–spacer–C≡C–S)L 2 ] (L = monophosphanes; spacer = none, 1,4‐C 6 H 4 , 1,3‐C 6 H 4 , 2,7‐C 15 H 12 and 3,5‐C 7 H 7 N). The dinuclear structure was confirmed by X‐ray diffraction studies of the complexes (PPN) 2 [Au 2 (S–C≡C–C≡C–S)(C 6 F 5 ) 2 ] and [Au 2 {3,5‐(S–C≡C) 2 –C 7 H 7 N}(PPh 3 ) 2 ] {PPN = bis(triphenylphosphane)iminium}. The use of diphosphanes gives complexes with higher nuclearity and cyclic structures.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)