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Acta Cryst. (2002). E58, m619-m621 [ doi:10.1107/S1600536802017981 ]
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2-alkoxo-bridged zirconium tetrameric complex: [Zr2(2-O,2-O'-methyliminodiethanolate)(2-O-n-propanolate)2(n-propanolate)4]2Abstract: The centrosymmetric tetrameric title compound, bis(methyliminodiethanolato-![[kappa]](/logos/entities/kappa_rmgif.gif)
5O:O,N,O':O')tetra--n-propanolato-8O:O-octa-n-propanolato-O-tetrazirconium, [Zr4(C5H11NO2)2(C3H7O)12], contains eight 2-O-atom Zr-O-Zr bridges. Each methyliminodiethanolate ligand is bound to one of the two central Zr atoms with a Zr-N distance of 2.412 (5) Å in a meridional configuration(s), with the ethanolate O atoms bridging both the central Zr atoms. Four n-propanolate ligands provide O atoms to bridge other pairs of Zr atoms. The remaining propanolate ligands bind terminally to one metal atom each, to make up 7- and 6-coordination for the the central and outer Zr atoms, respectively. The distorted ZrO6 octahedra each share a face with one of the central ZrO6N pentagonal bipyramids; these edge-share with each other across the centre of symmetry.
Online 5 October 2002
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