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Updated: Jan 19, 2026
Transition Metals: Electron Configurations and Properties
Bi- and Polynuclear Transition-Metal Carbon Tellurides
Benjamin J Frogley1, Anthony F Hill1, Chee S Onn1
1Research School of Chemistry, The Australian National University, Canberra, ACT, 2601, Australia.
Abstract:
The first examples of bi- and polynuclear tellurocarbonyl complexes were obtained from the reactions of [W(≡CTe)(CO)2 (Tp*)]NEt4 (Tp*=hydrotris(dimethylpyrazolyl)borate) with [MCl(PCy3 )]/TlPF6 (M=Cu, Au) or [Au2 Cl2 (μ-dppm)], which afford [WM(μ-CTe)(PCy3 )(CO)2 (Tp*)] (M=Cu, Au) and [WAu2 (μ-CTe)(μ-dppm)(CO)2 (Tp*)]3 (PF6 )3 . In all cases it is specifically the tellurocarbonyl that assumes a bridging, but in each case distinct, role including examples of isotellurocarbonyl, semi-bridging and σ-π coordination and combinations thereof. Tetrametallic complexes bridged by C2 Te and C2 Te2 ligands are also described.
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