Chemistry of molecular and supramolecular structures of vanadium(IV) and dioxygen-bridged V(V) complexes incorporating tridentate hydrazone ligands

Content Provider	Semantic Scholar
Author	Mangalam, Neema Ani Sivakumar, S. Sheeja, S. R. Kurup, M. R. P. Tiekink, Edward R. T.
Copyright Year	2009
Abstract	Abstract Four hydrazone ligands: 2-benzoylpyridine benzoyl hydrazone (HBPB), di-2-pyridyl ketone nicotinoyl hydrazone (HDKN), quinoline-2-carbaldehyde benzoyl hydrazone (HQCB), and quinoline-2-carbaldehyde nicotinoyl hydrazone (HQCN) and four of their complexes with vanadyl salts have been synthesized and characterized. Single crystals of HBPB and complexes [VO(BPB)(μ 2 -O)] 2 ( 1 ) and [VO(DKN)(μ 2 -O)] 2 ·½H 2 O ( 2 ) were isolated and characterized by X-ray crystallography. Each of the complexes exhibits a binuclear structure where two vanadium(V) atoms are bridged by two oxygen atoms to form distorted octahedral structures within cis -N 2 O 4 donor sets. In most complexes, the uninegative anions function as tridentate ligands, coordinating through the pyridyl- and azomethine-nitrogen atoms and enolic oxygen whereas in complex [VO(HQCN)(SO 4 )]SO 4 ·4H 2 O ( 4 ) the ligand is coordinated in the keto form. Complexes [VO(QCB)(OMe)]·1.5H 2 O ( 3 ) and 4 are found to be EPR active and showed well-resolved axial anisotropy with two sets of eight line pattern.
Starting Page	4191
Ending Page	4197
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1016/j.ica.2009.06.029
Volume Number	362
Alternate Webpage(s)	https://dyuthi.cusat.ac.in/jspui/bitstream/purl/4007/1/Chemistry%20of%20molecular%20and%20supramolecular%20structures%20of%20vanadium(IV)%20anddioxygen-bridged%20V(V)%20complexes%20incorporating%20tridentate%20hydrazone%20ligands.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.ica.2009.06.029
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article