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Spectroscopic and structural properties of complexes of 3,3'-bis(2-benzimidazolyl)-2,2'-bipyridine with copper(I) and silver(I)

Spectroscopic and structural properties of complexes of 3,3'-bis(2-benzimidazolyl)-2,2'-bipyridine with copper(I) and silver(I)
Spectroscopic and structural properties of complexes of 3,3'-bis(2-benzimidazolyl)-2,2'-bipyridine with copper(I) and silver(I)
The pseudo-tetrahedral complexes [CuL2]PF6 · 7H2O · CH3OH (1) and [AgL2]CF3SO3 · H2O (2) (L = 3,3'-bis(2-benzimidazolyl)-2,2'-bipyridine) have been synthesized and characterized through crystal structure analyses, electrochemistry, and spectroscopic methods. X-ray structural analyses of 1 and 2 indicate that sterically constrained N4 ligands L are cis and behave as bidentate chelates to a single metal ion in a pseudo-tetrahedral fashion through the benzimidazole. As two benzimidazolyl rings exhibit considerable steric hindrance, the bipyridine unit of L remains uncoordinated. The pseudo-tetrahedral cation [CuL2]+ shows a quasi-reversible CuI/CuII oxidation-reduction wave in the CV in DMF (counter-ion PF6-). The fluorescence titration of L with copper(I), silver(I), and also with pH have been conducted to examine the selectivity. The ligand shows remarkably high selectivity and sensitivity for Ag(I)
2365-2376
Şengül, Abdurrahman
eff3416d-04cc-4bf9-a787-06b11163c3dd
Kurt, Özgür
8b7297c7-6644-4acd-97ca-014b926dbf69
Adler, Philip David Felix
59712cb2-9c95-44cc-aa90-85d2cc325bd7
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Şengül, Abdurrahman
eff3416d-04cc-4bf9-a787-06b11163c3dd
Kurt, Özgür
8b7297c7-6644-4acd-97ca-014b926dbf69
Adler, Philip David Felix
59712cb2-9c95-44cc-aa90-85d2cc325bd7
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8

Şengül, Abdurrahman, Kurt, Özgür, Adler, Philip David Felix and Coles, Simon J. (2014) Spectroscopic and structural properties of complexes of 3,3'-bis(2-benzimidazolyl)-2,2'-bipyridine with copper(I) and silver(I). Journal of Coordination Chemistry, 67 (14), 2365-2376. (doi:10.1080/00958972.2014.943201).

Record type: Article

Abstract

The pseudo-tetrahedral complexes [CuL2]PF6 · 7H2O · CH3OH (1) and [AgL2]CF3SO3 · H2O (2) (L = 3,3'-bis(2-benzimidazolyl)-2,2'-bipyridine) have been synthesized and characterized through crystal structure analyses, electrochemistry, and spectroscopic methods. X-ray structural analyses of 1 and 2 indicate that sterically constrained N4 ligands L are cis and behave as bidentate chelates to a single metal ion in a pseudo-tetrahedral fashion through the benzimidazole. As two benzimidazolyl rings exhibit considerable steric hindrance, the bipyridine unit of L remains uncoordinated. The pseudo-tetrahedral cation [CuL2]+ shows a quasi-reversible CuI/CuII oxidation-reduction wave in the CV in DMF (counter-ion PF6-). The fluorescence titration of L with copper(I), silver(I), and also with pH have been conducted to examine the selectivity. The ligand shows remarkably high selectivity and sensitivity for Ag(I)

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Published date: 2014
Organisations: Chemistry

Identifiers

Local EPrints ID: 371993
URI: http://eprints.soton.ac.uk/id/eprint/371993
PURE UUID: 4e474b4c-473c-4a83-8372-5f9d2cdb2756
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

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Date deposited: 24 Nov 2014 11:42
Last modified: 13 Aug 2021 01:37

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