Synthesis and Structure of the Decanuclear Gold(I) Cluster Cation [Au8(AuCl)2{μ3-P(tBu)}2{μ-P(tBu)=C(NMe2)2}6]4+ with Bridging Phosphaalkene and Phosphanediide Ligands
✍ Scribed by Lothar Weber; Ulrich Lassahn; Hans-Georg Stammler; Beate Neumann; Konstantin Karaghiosoff
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 143 KB
- Volume
- 2002
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
Reaction of the inversely polarized phosphaalkene HP= C(NMe 2 ) 2 (1) with [AuCl(PPh 3 )] (2a) in a molar ratio of 2:1 in THF led to the formation of complex [Au{HP=C(NMe 2 ) 2 } 2 ]Cl (3) as a pale yellow solid. In contrast to this, treatment of 2a with two molar equivalents of tBuP=C(NMe 2 ) 2 (4) afforded a mixture of [Au{P(tBu)=C(NMe 2 ) 2 } 2 ] + Cl -(5) and [{(Me 2 N) 2 C= (tBu)PAu} 2 (µ-Cl)] + Cl -(6). In CH 2 Cl 2 solution this mixture was slowly converted into the novel decanuclear complex [Au 8 (AuCl) 2 {µ 3 -P(tBu)} 2 {µ-P(tBu)=C(NMe 2 ) 2 } 6 ] 4+ (Cl -) 4 (7) fea- [15] and the tetranuclear complex [{Au(C 6 F 5 ) 2 (µ-