title: Synthesis and structure of the first discrete dinuclear cationic aluminum complexes.
abstract: The reactions of the charge neutral dinuclear aluminum tetraalkyl complexes of di-Schiff base ligands, i.e. [AlMe2{ON}-R-{ON}AlMe2] (1a, R = 1,3-propylene; 1b, R = 1,3-cyclohexylene) with B(C6F5)3 and [H(Et2O)2](+)[H2N{B(C6F5)3}2](-) were investigated. When B(C6F5)3 was used as the cationizing agent (1 or 2 equiv. vs. Al), only monocationic dinuclear complexes [2a,b]+[MeB(C6F5)3]- were obtained. In contrast, with [H(Et2O)2](+)[H2N{B(C6F5)3}2](-), both mixed-dicationic [3a,b·(OEt2)2]2+[MeB(C6F5)3]-[H2N{B(C6F5)3}2]- and homo-dicationic [3a,b·(OEt2)2]2+[H2N{B(C6F5)3}2]-2 ion-pairs were prepared. All cationic complexes were characterized by (1)H, (13)C, (19)F and (11)B NMR spectroscopy, and an X-ray diffraction study was performed for [3b·(OEt2)2]2+[H2N{B(C6F5)3}2]-2.
authors.affiliation: Institut des Sciences Chimiques de Rennes, Organometallics: Materials and Catalysis laboratories, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France. jean-francois.carpentier@univ-rennes1.fr evgueni.kirillov@univ-rennes1.fr and State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology Dalian University of Technology, Dalian 116024, P. R. China.
authors.forename: Xingbao
authors.initials: X
authors.lastname: Wang
authors.affiliation: Institut des Sciences Chimiques de Rennes, Centre de diffraction X, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France.
authors.forename: Vincent
authors.initials: V
authors.lastname: Dorcet
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology Dalian University of Technology, Dalian 116024, P. R. China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Luo
authors.affiliation: Institut des Sciences Chimiques de Rennes, Organometallics: Materials and Catalysis laboratories, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France. jean-francois.carpentier@univ-rennes1.fr evgueni.kirillov@univ-rennes1.fr.
authors.forename: Jean-Francois
authors.initials: JF
authors.lastname: Carpentier
authors.affiliation: Institut des Sciences Chimiques de Rennes, Organometallics: Materials and Catalysis laboratories, UMR 6226 CNRS-Université de Rennes 1, F-35042 Rennes Cedex, France. jean-francois.carpentier@univ-rennes1.fr evgueni.kirillov@univ-rennes1.fr.
authors.forename: Evgueni
authors.initials: E
authors.lastname: Kirillov