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http://nopr.niscpr.res.in/handle/123456789/15772| Title: | Mixed ligand oxovanadium(IV) complexes with salicylic acid and N,N-bidentate ligands |
| Authors: | Bhattacharya, Sharmila Ghosh, Tapas |
| Issue Date: | Jun-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Two mixed-ligand oxovanadium(IV) complexes VO(A)(B) [where H2A=salicylic acid and B=2,2'-bipyridine or 1,10- phenanthroline (hereafter, bipy and phen respectively)] have been synthesized and characterized by magnetic moment and spectral (IR, UV/VIS and EPR) data. The A2- ion acts as a bidentate dinegative ligand while B ligands act as a neutral bidentate. The magnetic susceptibility values indicate the existence of a small amount of anti ferromagnetic interaction. The vanadium atoms in the complexes are hexacoordinated and the coordination sphere is of the type [VO(OO)(NN)], where O atoms are of oxo, carboxylic and phenolic type and N atoms are of pyridine type. The sixth coordination site is occupied by phenolic oxygen of the neighbouring molccule forming a bridge. The vv=o confirms the hexacoordination. All the complexes have dxy1 type axial EPR spectra and they exhibit two ligand field transitions at 740 and 440 nm. |
| Page(s): | 601-603 |
| Appears in Collections: | IJC-A Vol.38A(06) [June 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 38A(6) 601-603.pdf | 693.48 kB | Adobe PDF | View/Open |
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