title: Soluble molecular compounds with the Mg-O-Al structural motif: a model approach for the fixation of organometallics on a MgO surface.
abstract: We report a facile route to the molecular compounds with the Mg-O-Al structural motif. The reaction of Mg[N(SiMe3)2]2 (1) with a stoichiometric amount of LAlOH(Me) (2) [L = CH{(CMe)(2,6-iPr2C6H3N)}2] in THF/n-hexane at 0 degrees C results in the formation of the heterobimetallic compound (Me3Si)2NMg(THF)2-O-Al(Me)L (3) in high yield. The similar reaction of 1 equiv of Mg[N(SiMe3)2]2 and 2 equiv of LAlOH(Me) results in the formation of trimetallic compound L(Me)Al-O-Mg(THF)2-O-Al(Me)L (4). Structural analyses of 3 and 4 have been carried out, revealing the presence of the Mg-O-Al motif. A tentative assignment of the Mg-O-Al vibrations has been made and was supported by calculations.
authors.affiliation: Institute of Inorganic Chemistry, University of Goettingen, Tammannstrasse 4, D-37077 Goettingen, Germany.
authors.forename: Sharanappa
authors.initials: S
authors.lastname: Nembenna
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
authors.forename: Swadhin K
authors.initials: SK
authors.lastname: Mandal
authors.forename: Rainer B
authors.initials: RB
authors.lastname: Oswald
authors.forename: Aritra
authors.initials: A
authors.lastname: Pal
authors.forename: Regine
authors.initials: R
authors.lastname: Herbst-Irmer
authors.forename: Mathias
authors.initials: M
authors.lastname: Noltemeyer
authors.forename: Hans-Georg
authors.initials: HG
authors.lastname: Schmidt