title: Structural diversity in gallium(III) complexes of the tripodal triarsine MeC(CH2AsMe2)3.
abstract: The preparation and crystal structures of the first examples of gallium halide complexes with the tripodal arsine, MeC(CH(2)AsMe(2))3, reveal three distinctly different coordination modes for the ligand; the neutral [{micro(3)-MeC(CH(2)AsMe(2))3-kappaAs:kappaAs':kappaAs''}(GaI(3))3] with the triarsine coordinating to three GaI(3) units, [{Me(2)AsCH(2)C(Me)(CH(2)AsMe(2))2-kappa(2)AsAs'}GaCl(2)][GaCl(4)] involving bidentate chelation to a GaCl2+ cationic unit with the third As donor atom uncoordinated, and [{MeC(CH(2)AsMe(2))3-kappaAs:kappa(2)As'As''}(GaCl3)(GaCl2)][GaCl4] in which the triarsine forms a bidentate chelate to the GaCl2+ unit and the third As donor atom binds to a further GaCl3 unit.
authors.affiliation: School of Chemistry, University of Southampton, Highfield, Southampton, UKSO17 1BJ.
authors.forename: Fei
authors.initials: F
authors.lastname: Cheng
authors.forename: Andrew L
authors.initials: AL
authors.lastname: Hector
authors.forename: William
authors.initials: W
authors.lastname: Levason
authors.forename: Gillian
authors.initials: G
authors.lastname: Reid
authors.forename: Michael
authors.initials: M
authors.lastname: Webster
authors.forename: Wenjian
authors.initials: W
authors.lastname: Zhang