title: Bis(bismuth)toluene inverted-sandwich complex supported by aminetris(phenoxide) ligands.
abstract: The reaction of bismuth amides or alkoxides with phenolic ligand precursors yields Bi complexes of aminetris(phenoxide)s, one of which was characterized by X-ray crystallography, revealing monomeric Bi units of the tetradentate NO3 ligand further associated via a symmetrical toluene bridge into a bis(bismuth)toluene inverted-sandwich complex. Synthesis of the analogous Sb complex suggests a markedly different geometric and electronic environment at the metal center, as evidenced by the solid-state molecular structure. Density functional theory calculations of the sandwich bismuth arene complex indicate the presence of a weak sigma*-2pi interaction.
authors.affiliation: Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.
authors.forename: Luke E
authors.initials: LE
authors.lastname: Turner
authors.forename: Matthew G
authors.initials: MG
authors.lastname: Davidson
authors.forename: Matthew D
authors.initials: MD
authors.lastname: Jones
authors.forename: Holger
authors.initials: H
authors.lastname: Ott
authors.forename: Verena S
authors.initials: VS
authors.lastname: Schulz
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Wilson