title: 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-Pr(i)2)2).
abstract: The reaction of a digermyne Ar'GeGeAr' (Ar' = C(6)H(3)-2,6-(C(6)H(3)-2,6-Pr(i)(2))(2)) with AgSbF(6) at -40 °C forms the complex (AgAr'GeGeAr')(+)SbF(6)(-), 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.
authors.affiliation: Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, USA.
authors.forename: Xinping
authors.initials: X
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Peng
authors.forename: Marilyn M
authors.initials: MM
authors.lastname: Olmstead
authors.forename: Håkon
authors.initials: H
authors.lastname: Hope
authors.forename: Philip P
authors.initials: PP
authors.lastname: Power