title: Synthesis and characterization of terpyridine-supported boron cations: evidence for pentacoordination at boron.
abstract: Hypervalent boron centers are proposed to be key intermediates in many stoichiometric and catalytic reactions. However, structurally characterized examples remain rare. We have isolated two new borocations with formal charges of 1+ and 2+. Because the dicationic complex displays evidence of pentacoordination at the boron center, we conclude that the interaction is predominantly electrostatic and is a result of the highly electrophilic dicationic boron atom.
authors.affiliation: Department of Chemistry and Biochemistry, Texas Tech University , Lubbock, Texas 79409-1061, United States.
authors.forename: Gregory P
authors.initials: GP
authors.lastname: McGovern
authors.forename: Di
authors.initials: D
authors.lastname: Zhu
authors.forename: Adelia J A
authors.initials: AJ
authors.lastname: Aquino
authors.forename: Dragoslav
authors.initials: D
authors.lastname: Vidović
authors.forename: Michael
authors.initials: M
authors.lastname: Findlater
mesh_terms: D001895:Boron / Q000737:chemistry*; D002412:Cations; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D011725:Pyridines / Q000737:chemistry*; D011789:Quantum Theory
chemical_list: D002412:Cations; D056831:Coordination Complexes; D011725:Pyridines; D001895:Boron; C023666:pyridine