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The copper−chalogenolates (R 3 P) 3 Cu−ESiMe 3 (E = S, 1; Se, 2; Te, 3; R = Et, a; n Pr, b ) have been prepared in high yield from (R 3 P) 3 CuOAc and E(SiMe 3 ) 2 at low temperatures. Complexes 1 − 3 contain a pendant −SiMe 3 moiety bonded to a chalcogen center. These copper−chalcogenolates are clear, colorless, low-melting-point solids and have been characterized by single-crystal crystallographic and spectroscopic methods.
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Tran et al. (2000) studied this question.
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