Nikonova, Olesya
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
Research article2007Peer reviewed
Nikonova, OA; Kessler, VG; Drobot, DV; Shcheglov, PA; Seisenbaeva, GA
Niobium and tantalum oxo-ethoxo-perrhenates, (M4O2)-O-v(OEt)(14)(ReO4)(2), are easily obtained in high yields via interaction of metal ethoxides, M-v(OEt)(5), with rhenium heptoxide, Re2O7, in hydrocarbon solvents. The complexes have good solubility in hexane and toluene and are stable in solution at room temperature. Their molecular structures are based on a tetranuclear M-4(mu-O)(2)(mu-OR)(4)X-12 core, X = OR, ReO4, composed of two pairs of edge-sharing octahedra joined via two almost linear oxo-bridges containing a rectangular flat M-4-arrangement. The perrhenate ligands are attached in a centrosymmetric manner to the two opposite corners of the rectangle. (c) 2006 Elsevier Ltd. All rights reserved
Metal alkoxide; Molecular precursor; Sol–gel; Rhenium; Niobium; Tantalum; Structure
Polyhedron
2007, volume: 26, number: 4, pages: 862-866
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Bioenergy
https://res.slu.se/id/publ/14008