title: Synthesis and characterization of [Ar'GaC(Ph)CH]2 and K2[Ar'GaC(Ph)CH]2OEt2: from digallene to digallacyclohexadiene to digallatabenzene.
abstract: On a plane: Addition of PhCCH to Ar'GaGaAr' (Ar' = 2,6-(2,6-iPr(2)C(6)H(3))(2)C(6)H(3)) yielded the 1,4-digallacyclohexadiene [{Ar'GaC(Ph)CH}(2)] (1), which afforded the 1,4-digallatabenzene dianion [Ar'GaC(Ph)CH](2)(2-) (2) upon reduction with potassium (see scheme; C gray, Ga green, K blue). Structural parameters, DFT calculations, and (1)H NMR spectroscopy support aromatic character of 2.
authors.affiliation: Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
authors.forename: Zhongliang
authors.initials: Z
authors.lastname: Zhu
authors.forename: Xinping
authors.initials: X
authors.lastname: Wang
authors.forename: Marilyn M
authors.initials: MM
authors.lastname: Olmstead
authors.forename: Philip P
authors.initials: PP
authors.lastname: Power