Isolation and structural characterization of the first homoleptic lanthanide-zirconium oxoisopropoxide, La2Zr3O(OPri)(16). Combination of an [M4O] tetrahedron with an [MO6] octahedron - A new structure type for pentanuclear alkoxide complexes

Abstract

The amorphous bimetallic isopropoxides of variable composition LaZrnOx(OPri)(3+4n-2x), where it = 0.5-3 formed on interaction of the two homometallic isopropoxides, La5O((OPr)-Pr-i)(13) and Zr((OPr)-Pr-i)(4)((PrOH)-Pr-i), in solutions in parent alcohol crystallize slowly yielding a bimetallic oxoalkoxide La2Zr3O(OPri)(16) (1). In its molecule an octahedrally coordinated zirconium atom is connected via two mu(3)-OR and two mu-OR-groups with two lanthanum atoms of a tetrahedral [La2Zr2(mu(4)-O)] aggregate. This structure type has not been previously observed in the structures of pentanuclear alkoxide aggregates. The conditions leading to formation of I from solutions containing the homometallic alkoxides are outlined. (c) 2006 Elsevier B.V. All rights reserved

Published in

Inorganic Chemistry Communications
2007, volume: 10, number: 3, pages: 352-354
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Kessler, Vadim

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

Publication identifier

• DOI: https://doi.org/10.1016/j.inoche.2006.12.002

Permanent link to this page (URI)

https://res.slu.se/id/publ/14155