Binary and ternary cluster complexes containing gold-selenium, gold-indium-selenium and gold-gallium-tellurium -: Synthesis and structures of [Au5Se2(PPh3)4]Cl, [(Au3Se)2{Ph2P(CH2)6PPh2}3]Cl2, [Au10Se4{Ph2P(CH2)5PPh2}4]InCl5, [Au4(SeInCl3)2}Ph2P(CH2)5PPh2}2], [Au2(TeGaCl3)}Ph2P(CH2)6PPh2}]2 and [Au8Se4In{Ph2P(CH2)2PPh2}4](InCl4)3

Reactions of gold phosphane complexes [ (AuX) (PR3 (X = Cl, Br, I; R = organic moiety) with Se(SiMe3)(2) lead to the formation of gold complexes with chalcogenide bridges. The reaction of the complex [Ph3PAuCl] and tBuSe(SiMe3) gives the cluster [Au5Se2(PPh3)(4)]Cl (1). The in situ preparation of the complex [(AuCI)(2)dpphl [dpph = Ph(2)p(CH2)(6)PPh2] by reaction of dpph with [Me2SAuCl], and subsequent reaction with Se(SiMe3)2, leads to the formation of [(AU(3)Se)(2)(dpph)(3)]Cl-2 (2). Reactions of the gold(I) complex [(AUCl)(2)dpppe] [dpppe = Ph2P(CH2)(5)PPh2] with Se(SiMe3)(2) and InCl3 in different molar ratios lead to the formation of [Au10Se4(dpppe)(4)]InCl5 (3) and [Au-4(SeInCl3)(2)(dpppe)(2)] (4). The reaction of [(AuCI)(2)dpph] with Te(SiMe3)(2) and GaCl3 produces the isostructural cluster compound [Au-4(TeGaCl3)(2)(dpph)(2)] (5). From the reaction of Se(SiMe3)(2) with [(AuCI)(2)dppe] [dppe = Ph(2)p(CH2)(2)PPh2] and InCl3 [Au8Se4In(dppe)(4)](InCl4)(3) 6 can be isolated. The structures of 1-6 were determined by Xray diffraction. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).