Soluble molecular compounds with the Mg-O-Al structural motif: a model approach for the fixation of organometallics on a MgO surface.
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.
Nembenna
Sharanappa
S
Institute of Inorganic Chemistry, University of Goettingen, Tammannstrasse 4, D-37077 Goettingen, Germany.
Roesky
Herbert W
HW
Mandal
Swadhin K
SK
Oswald
Rainer B
RB
Pal
Aritra
A
Herbst-Irmer
Regine
R
Noltemeyer
Mathias
M
Schmidt
Hans-Georg
HG