title: Highly volatile magnesium complexes with the aminodiboranate anion, a new chelating borohydride. Synthesis and characterization of Mg(H(3)BNMe(2)BH(3))(2) and related compounds.
abstract: Remarkably volatile magnesium complexes have been prepared with the modified borohydride ligand N,N-dimethylaminodiboranate, H(3)BNMe(2)BH(3)(-). The homoleptic complex Mg(H(3)BNMe(2)BH(3))(2), its monoadducts with tetrahydrofuran and 1,2-dimethoxyethane, and the mixed ligand complex (C(5)Me(5))Mg(H(3)BNMe(2)BH(3))(thf) have been prepared. The homoleptic complex Mg(H(3)BNMe(2)BH(3))(2) has a vapor pressure of 800 mTorr at 25 degrees C, which makes it the most volatile magnesium complex known. Crystal structures and NMR data are reported for all complexes. The compounds are potentially useful as chemical vapor deposition precursors to MgB(2) and MgO, and as hydrogen storage materials.
authors.affiliation: School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, USA.
authors.forename: Do Young
authors.initials: DY
authors.lastname: Kim
authors.forename: Gregory S
authors.initials: GS
authors.lastname: Girolami
mesh_terms: D000838:Anions / Q000737:chemistry; D001880:Boranes / Q000737:chemistry*; D001894:Borohydrides / Q000138:chemical synthesis* / Q000737:chemistry*; D002614:Chelating Agents / Q000138:chemical synthesis* / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008274:Magnesium / Q000737:chemistry*; D008958:Models, Molecular
chemical_list: D000838:Anions; D001880:Boranes; D001894:Borohydrides; D002614:Chelating Agents; D056831:Coordination Complexes; D008274:Magnesium