Bibenzimidazole containing mixed ligand cobalt(III) complex as a selective receptor for iodide
IR@NIO: CSIR-National Institute Of Oceanography, Goa
View Archive Info| Field | Value | |
| Creator |
Indumathy, R.
Parameswarana, P.S. Aiswarya, C.V. Nair, B.U. |
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| Date |
2015-01-08T08:47:39Z
2015-01-08T08:47:39Z 2014 |
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| Identifier |
Polyhedron, vol.75; 2014; 22-29
no http://drs.nio.org/drs/handle/2264/4669 |
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| Description |
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
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| Language |
en
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| Publisher |
Elsevier
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| Relation |
Polyhedron_75_22.jpg
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| Rights |
An edited version of this paper was published by Elsevier. Copyright [2014] Elsevier
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| Subject |
ligand
receptor |
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| Title |
Bibenzimidazole containing mixed ligand cobalt(III) complex as a selective receptor for iodide
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| Type |
Journal Article
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