363166-72-7Relevant academic research and scientific papers
Trialkylphosphine-stabilized copper - Phenyltellurolate complexes: From small molecules to nanoclusters via condensation reactions
DeGroot,Cockburn,Workentin,Corrigan
, p. 4678 - 4685 (2001)
Reactions of CuCl with Te(Ph)SiMe3 and solublizing trialkylphosphine ligands afford a series of polynuclear copper-phenyltellurolate complexes that has been structurally characterized. The formation of the complexes is found to be highly dependent on the ancillary phosphine ligand used. The synthesis and structures of [Cu2(μ-TePh)2(PMe3)4] 1, [Cu4(μ3-TePh)4(PPri 3)3] 2, [Cu5(μ-TePh)3(μ3-TePh) 3(PEt3)3][PEt3Ph] 3, and [Cu12Te3(μ3-TePh)6-(PEt 3)6] 4 are described. The telluride (Te2-) ligands in 4 arise from the generation of TePh2 in the reaction mixtures. The subsequent co-condensation of clusters 3 and 4 leads to the generation of the nanometer sized complex [Cu29Te9(μ3-TePh)10(μ 4-TePh)2(PEt3)8][PEt 3Ph] 5 in good yield, in addition to small amounts of [Cu39-(μ3-TePh)10(μ4- TePh)Te16(PEt3)13] 6. These complexes are formed via the photo elimination of TePh2. The cyclic voltammogram of 5 in THF solution exhibits two oxidation waves, assigned to the oxidation of the Cu(I) centers.
