dc.contributor.author | Indumathy, R. | |
dc.contributor.author | Parameswarana, P.S. | |
dc.contributor.author | Aiswarya, C.V. | |
dc.contributor.author | Nair, B.U. | |
dc.date.accessioned | 2015-01-08T08:47:39Z | |
dc.date.available | 2015-01-08T08:47:39Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Polyhedron, vol.75; 2014; 22-29 | |
dc.identifier.other | no | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/4669 | |
dc.description.abstract | Two new mixed ligand cobalt(III) complexes containing bibenzimidazole (bbenzimH<sub>2</sub>) ligand with composition [Co(phen)<sub>2</sub>bbenzimH<sub>2</sub>](ClO<sub>4</sub>)<sub>3</sub> (1) and [Co(bpy)<sub>2</sub>bbenzimH<sub>2</sub>](ClO<sub>4</sub>)<sub>3</sub> (2) have been synthesized and characterized using UV–Vis, Infrared, ESI-MS and cyclic voltammetric techniques. Both complexes 1 and 2 exhibited quasi-reversible electrochemical wave. The anion binding studies with these metallo-receptor complexes were carried out using UV–Vis and fluorescence spectroscopic titrations and complex 2 was found to be selective towards iodide anion. Though complex 2 possesses potential hydrogen bonding sites, namely –NH, it was found that the basic anions like F-, OH- and OAc- do not bring about any dramatic visual colorimetric changes. However, metallo-receptor 2 brings about vivid color change with iodide anion visually and this could be due to charge transfer transition via ion pair formation with iodide ion | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.relation.requires | Polyhedron_75_22.jpg | |
dc.rights | An edited version of this paper was published by Elsevier. Copyright [2014] Elsevier | |
dc.subject | ligand | |
dc.subject | receptor | |
dc.title | Bibenzimidazole containing mixed ligand cobalt(III) complex as a selective receptor for iodide | |
dc.type | Journal Article | |