Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ica.2003.08.016
Title: Synthesis and structure of cyclic hexanuclear oxo-alkoxo- carboxylatoniobium(IV) complexes
Authors: Ooi, B.-L.
Søtofte, I.
Vittal, J.J. 
Keywords: Hexanuclear
Niobium
Oxo-alkoxo-carboxylato complexes
Ring structures
Issue Date: 30-Jan-2004
Source: Ooi, B.-L., Søtofte, I., Vittal, J.J. (2004-01-30). Synthesis and structure of cyclic hexanuclear oxo-alkoxo- carboxylatoniobium(IV) complexes. Inorganica Chimica Acta 357 (2) : 625-629. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ica.2003.08.016
Abstract: The synthesis and crystal structure of novel oxo-alkoxo-carboxylato Nb(IV) complexes, Nb6(μ2-O)3(μ 2-O2CCX3)6(μ2-OC 2H5)6(OC2H5)6 (X=Cl, F) are described. The single-crystal X-ray structure determination carried out, revealed a closed ring of six Nb(IV) ions linked alternately by two carboxylato groups and an oxo group, and two ethoxo groups. The hexanuclear molecule can essentially be described as a trimer of Nb2(μ 2-OC2H5)2(OC2H 5)2, each linked by an μ2-oxo group and two μ2-carboxylato groups. The ethoxo-bridged Nb-Nb distances are 2.735(5) Å, which is consistent with a single metal-metal bond, while the oxo- and carboxylato-bridged non-bonding Nb-Nb distances are 3.635(2) Å. © 2003 Published by Elsevier B.V.
Source Title: Inorganica Chimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/95100
ISSN: 00201693
DOI: 10.1016/j.ica.2003.08.016
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