A Ditetrylyne as a π-Electron Donor: Synthesis and Characterization of [AgAr′GeGeAr′]+SbF6− and [Ag2Ar′GeGe(F)Ar′]+SbF6− (Ar′ = C6H3-2,6(C6H3-2,6-Pri2)2)

摘要

The reaction of a digermyne Ar′GeGeAr′ (Ar′ = C₆H₃-2,6-(C₆H₃-2,6-Pri₂)₂) with AgSbF₆ at −40 °C forms the complex (AgAr′GeGeAr′)+SbF₆−, which provides the first example of a heavier group 14 element alkyne analogue behaving as a π donor to a transition metal. The cation (AgAr′GeGeAr′)+ is best described as a hybrid of a π-complex and a σ-metallacyclopropene structure.