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1.
Preparation and characterization of a tetranuclear and mixed-valence Nb(II)/Nb(III) diamagnetic Nb(4)Cl(12)Li(2)(THF)(8) cluster.
Tayebani, M; Aharonian, G; Feghali, K; Gambarotta, S; Yap, G P.
Inorg Chem ; 40(10): 2442-5, 2001 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-11327929
2.
Insensitivity of the Nb-Nb distance in a paddle-wheel compound to bond multiplicity and axial ligation.
Tayebani, M; Feghali, K; Gambarotta, S; Yap, G P.
Inorg Chem ; 40(6): 1399-401, 2001 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-11300851
3.
A Paramagnetic Diniobium Complex with a Very Short Nb-Nb Distance: Evidence for a Pseudo Nb-Nb Triple Bond?
Tayebani M; Feghali K; Gambarotta S; Yap GP; Thompson LK.
Angew Chem Int Ed Engl ; 38(24): 3659-3661, 1999 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-10649315

RESUMO

In spite of the short Nb-Nb distance (2.268 Å) and the presumable existence of an Nb identical withNb bond, the paddle-wheel-shaped diniobium(II) complex 1 is paramagnetic. Theoretical calculations indicate that the presence of LiCl moieties on the intermetallic axis lowers the Nb-Nb bond order and is responsible for the observed paramagnetism.

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