title: Synthesis and Characterization of Cationic Low-Valent Gallium Complexes of Cryptand[2.2.2].
abstract: The synthesis and characterization of two bimetallic, cationic low-valent gallium-cryptand[2.2.2] complexes is reported. The reaction of cryptand[2.2.2] with Ga2Cl4 gave two different cations, [Ga3Cl4 (crypt-222)](+) (1) or [Ga2Cl2 (crypt-222)](2+) (2), depending on whether or not trimethylsilyl triflate (Me3SiOTf) was added as a co-reagent. Complexes 1 and 2 are the first examples of bimetallic cryptand[2.2.2] complexes, as well as the first low-valent gallium-cryptand[2.2.2] complexes. Computational methods were used to evaluate the bonding in the gallium cores.
authors.affiliation: Department of Chemistry, University of Western Ontario, Room 310 A, Chemistry Building, London, Ontario, N6A 5B7 (Canada).
authors.forename: Jeremy L
authors.initials: JL
authors.lastname: Bourque
authors.affiliation: Department of Chemistry, University of Western Ontario, Room 310 A, Chemistry Building, London, Ontario, N6A 5B7 (Canada).
authors.forename: Paul D
authors.initials: PD
authors.lastname: Boyle
authors.affiliation: Department of Chemistry, University of Western Ontario, Room 310 A, Chemistry Building, London, Ontario, N6A 5B7 (Canada). kbaines2@uwo.ca.
authors.forename: Kim M
authors.initials: KM
authors.lastname: Baines
keywords: bimetallic; cations; complexation; cryptand; gallium