Journal article
Copper(II) complexes of new unsymmetrical NSN thioether ligands
Inorganica Chimica Acta, v 324(1), pp 123-130
2001
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The reactions of 2-(mercaptoethyl)benzimidazole with 2-vinylpyridine and 2-picolyl chloride (in basic medium) yield the new unsymmetrical ligands 1-(2-benzimidazolyl)-5-(2′-pyridyl)-3-thiapentane (Biptp) and 1-(2-benzimidazolyl)-4-(2′-pyridyl)-3-thiabutane (Biptb), respectively. Copper(II) complexes of these ligands with differing anions were prepared. Crystal structures are reported for [Cu(Biptp)](CF
3SO
3)
2·2H
2O and [Cu(Biptb)](CF
3SO
3)
2·0.5(C
7H
8)·H
2O, in which the Cu(II) ions exhibit distorted square-pyramidal geometries. Powder ESR spectra of the copper compounds are rhombic and the degree of rhombicity is related to the identity of the anions. Charge-transfer bands and intense absorption in the visible region are observed in the electronic spectra. Electrochemical studies indicate that one-electron reductions are involved, the reductions occurring at relatively high potentials.
Copper(II) complexes of two new unsymmetrical ligands were synthesized. The complexes were characterized by X-ray crystallography, UV–Vis, ESR spectrometry and electrochemical methods. The structures of the copper(II) complexes are distorted square pyramidal.
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Details
- Title
- Copper(II) complexes of new unsymmetrical NSN thioether ligands
- Creators
- Jayakumar G Gilbert - Drexel UniversityAnthony W Addison - Drexel UniversityAlexander Y Nazarenko - Buffalo State CollegeRaymond J Butcher - Department of Chemistry, Howard University, Washington, DC 20059, USA
- Publication Details
- Inorganica Chimica Acta, v 324(1), pp 123-130
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:000172478900015
- Scopus ID
- 2-s2.0-0035851631
- Other Identifier
- 991019168319504721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Inorganic & Nuclear