Abstract:

The structure of the title compound, [Mg-2(C4H9)(C14H18NO)(3)], contains two Mg atoms bridged by two mu(2)-O atoms from two of the three ketiminate ligands, while the third ketiminate is strictly chelating to one of the Mg atoms, which is thereby five-coordinate. In place of a chelating ligand, the second Mg atom is ligated by a single terminal n-butyl group and thus is four-coordinate. This is, so far, the only structurally characterized mixed magnesium ketiminate-alkyl cluster. The geometry at the first Mg atom is close to trigonal-bipyramidal with one chelating and one bridging O atom in the axial positions and two chelating N and one bridging O atom in the equatorial positions. The geometry at the second Mg atom is very distorted from tetrahedral, with an O-Mg-C angle of 131.0 (1)degrees.

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Times Cited: 0Boere, Rene T. Gietz, TwylaPart 9

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