The preparation of new oxoniobium(V) complexes from hydrated Niobium(V) Oxide: the crystal and molecular structure of Oxotris(2-pyridinolato-N-oxide)niobium(V)

Three oxoniobium(V) complexes ONbL^sub 3^ with HL = tropolone (1), 2-pyridinol-N-oxide (2) or, 3-hydroxy-1,2-dimethyl-4(1H)-pyridone (3) are obtained in good yield by one step reactions from commercially available hydrated niobium(V) oxide in aqueous media. The products are characterized by elementa...

Full description

Saved in:
Bibliographic Details
Published in:Transition metal chemistry (Weinheim) 2007-02, Vol.32 (1), p.112-116
Main Authors: Serafím, Maria J. S., Bessler, Karl E., Lemos, Sebastião S., Sales, Maria J. A., Ellena, Javier
Format: Article
Language:English
Subjects:
Crystal structure
Spectrum analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three oxoniobium(V) complexes ONbL^sub 3^ with HL = tropolone (1), 2-pyridinol-N-oxide (2) or, 3-hydroxy-1,2-dimethyl-4(1H)-pyridone (3) are obtained in good yield by one step reactions from commercially available hydrated niobium(V) oxide in aqueous media. The products are characterized by elemental analysis, FT-IR spectroscopy, NMR spectroscopy (^sup 1^H- and ^sup 13^C-) and thermogravimetry. The crystal structure of oxotris(2-pyridinolato-N-oxide)niobium(V) is determined by single crystal X-ray diffraction, showing discrete molecules with pentagonal bipyramidal coordinated niobium. The ^sup 1^H-NMR spectra of CDCl^sub 3^ solutions indicate a fluxional behaviour for the three complexes.[PUBLICATION ABSTRACT]
ISSN:0340-4285
1572-901X
DOI:10.1007/s11243-006-0142-x