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Coordination Adducts of Niobium(V) and Tantalum(V) Azide M(N 3 ) 5 (M=Nb, Ta) with Nitrogen Donor Ligands and their Self‐Ionization
Author(s) -
Haiges Ralf,
Deokar Piyush,
Christe Karl O.
Publication year - 2014
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.201402775
Subject(s) - adduct , tantalum , chemistry , niobium , ligand (biochemistry) , azide , 2,2' bipyridine , acceptor , nitrogen , bipyridine , phenanthroline , crystallography , inorganic chemistry , medicinal chemistry , crystal structure , organic chemistry , biochemistry , physics , receptor , condensed matter physics
Several new donor–acceptor adducts of niobium and tantalum pentaazide with N‐donor ligands have been prepared from the pentafluorides by fluoride–azide exchange with Me 3 SiN 3 in the presence of the corresponding donor ligand. With 2,2′‐bipyridine and 1,10‐phenanthroline, the self‐ionization products [MF 4 (2,2′‐bipy) 2 ] + [M(N 3 ) 6 ] − , [M(N 3 ) 4 (2,2′‐bipy) 2 ] + [M(N 3 ) 6 ] − and [M(N 3 ) 4 (1,10‐phen) 2 ] + [M(N 3 ) 6 ] − were obtained. With the donor ligands 3,3′‐bipyridine and 4,4′‐bipyridine the neutral pentaazide adducts (M(N 3 ) 5 ) 2 ⋅L (M=Nb, Ta; L=3,3′‐bipy, 4,4′‐bipy) were formed.