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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mohapatra, Subash Chandra Mathur, Pavan |
| Description | Country affiliation: India Author Affiliation: Mohapatra SC ( Department of Chemistry, University of Delhi, Delhi 110007, India. subashcm@gmail.com) |
| Abstract | Monomeric Cu(II) and Cu(I) complexes bound to a tetradentate bis-benzimidazole diamide ligand N,N'-bis(N-octyl benzimidazolyl-2yl)(methyl)pentane diamide (O-GBGA) have been isolated and characterized. X-Band EPR spectra of the copper(II) complexes in CH2Cl2 were recorded in a frozen solution as solvent at liquid nitrogen temperature. Solution spectra typically indicate a d(x2-y2) ground state (g||>gâ ¥>2.0023) and show less than four nuclear hyperfine lines with broadening of gâ ¥ line in some cases, thus indicating distorted tetragonal geometry. One of the copper(II) complexes shows a five line N-SHF structure (16±1G) implying the binding of imine nitrogen of the benzimidazole to copper ion. 2 ranges from 0.57-0.97 indicating considerable amount of covalent character in Cu-L bond. Anodic shifts in E1/2 values indicate the retention of anion in the coordination sphere of Cu(II), E1/2 values becoming anodic in the order C6H5COO- |
| ISSN | 13861425 |
| Issue Number | 2 |
| Volume Number | 78 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-02-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Benzimidazoles Chemistry Copper Diamide Electrochemical Techniques Electron Spin Resonance Spectroscopy Electrons Ligands Magnetic Resonance Spectroscopy Spectrometry, Fluorescence Spectrophotometry, Infrared Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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