Preparation and physico-chemical characterisation of iron(III) complexes containing substituted benzimidazole and Schiff base moieties |
| |
| Authors: | Raj K Dubey Uma K Dubey Chandrakant M Mishra |
| |
| Institution: | (1) Department of Chemistry, Synthetic Inorganic and Metallo-Organic Research Laboratory, University of Allahabad, Allahabad, 211002, India;(2) Department of Chemistry, R.J. College, Mumbai, 40068, India |
| |
| Abstract: | New complexes of iron(III) of the type (μ-Cl)2Fe2{η
2-(opbz)4] (1) and (Cl)2Fe{η
2-(opbz)] (2) Hopbz = {2-(o-hydroxyphenyl)}-benzimidazole, η
2 = Number of connectivity sites involved in bonding the metal] have been synthesized by the interactions of iron(III) chloride
with the corresponding ligand (Hopbz) in 1:2 and 1:1 molar ratio(s) in hot EtOH. The complex (1) was further treated with various sodium salts of Schiff bases (sb) Na(o-smab), Na(p-smab) and Na(sap)], alkoxo-Na(OPri), aryloxo-Na(OAr) and tetraisopropoxyaluminate Na{Al(OPri)4] in a 1:1 molar ratio (in THF–benzene medium) to produce derivatives of the type: {(η
2-(sb) Fe{η
2-opbz)2] (3), (4) and (5), (μ-OPri)2Fe2{η-(opbz)4}] (6) (μ-OAr)2Fe2{η-(opbz)4}] (7) and (μ-OPri)2Al(OPri)2-Fe{η-(opbz)2}] (8). All these derivatives were characterised by elemental analysis, spectral (IR, UV–visible and FAB-mass) and magnetic susceptibility
measurements. On the basis of these studies, a distorted octahedral (dimeric) geometry around iron(III) for the complexes
(1), (6), (7) and (8) have been suggested. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
