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σ‐Organoniobium Compounds with [NbR 4 ] − and NbR 4 Stoichiometries
Author(s) -
Alonso Pablo J.,
Ara Irene,
Arauzo Ana B.,
GarcíaMonforte M. Angeles,
Menjón Babil,
Rillo Conrado
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201002666
Subject(s) - stoichiometry , tetrahedron , crystallography , chemistry , mineralogy , computer science , combinatorics , mathematics
Securely nested : The first examples of σ‐organoniobium compounds with [Nb III R 4 ] − and Nb IV R 4 stoichiometries are reported. The Nb centers within the [Nb(C 6 Cl 5 ) 4 ] q − units ( q =0, 1) are located in triakis tetrahedral environments formed by the combination of inner NbC 4 (see picture; gray) and outer NbCl 4 (green) tetrahedra.