Carbon–chalcogen wires: alkynyltellurolatocarbynes

Abstract

The reactions of [W(ΞCBr)(CO)2(Tp*)] (Tp* = tris(dimethylpyrazolyl)borate) with LiTeCΞCR (R = SiMe3, SiiPr3, iPr, nBu, tBu, Ph, C6H4Me-4, methylimidazol-2-yl) afford the first alkynyltellurolatocarbynes [W(ΞCTeCΞCR)(CO)2(Tp*)]. Both the WΞC and CΞC multiple...