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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Vijayaraj, A. Narayanan, V. Shenbhagaraman, R. Kaviyarasan, V. Prabu, R. Suresh, R. |
| Description | Country affiliation: India Author Affiliation: Prabu R ( Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai 600 025, India.) |
| Abstract | The five binuclear nickel(II) complexes have been synthesized by the Schiff base condensation of 1,8-[bis(3-formyl-2-hydroxy-5-methyl)benzyl]-l,4,8,11-tetraazacyclo-tetradecane (PC) with appropriate aliphatic diamines and nickel(II) perchlorate. All the five complexes were characterized by elemental and spectral analysis. The electronic spectra of the complexes show three d-d transition in the range of 550-1055 nm due to 3A2gâ 3T2g(F), 3A2gâ 3T1g(F) and 3A2gâ 3T1g(P). These spin allowed electronic transitions are characteristic of an octahedral Ni2+ center. Electrochemical studies of the complexes show two irreversible one electron reduction waves at cathodic region. The reduction potential of the complexes shifts towards anodically upon increasing the chain length of the macrocyclic ring. All the nickel(II) complexes show two irreversible one electron oxidation waves at anodic region. The oxidation potential of the complexes shift towards anodically upon increasing the chain length of the macrocyclic ring. The catalytic activities of the complexes were observed to be increase with increase the macrocyclic ring size. The observed rate constant values for the catalytic hydrolysis of 4-nitrophenyl phosphate are in the range of 5.85×10(-3) to 9.14×10(-3) min(-1). All the complexes were screened for antimicrobial activity. |
| 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 | Anti-infective Agents Pharmacology Aza Compounds Electrochemical Techniques Methods Macrocyclic Compounds Chemistry Antifungal Agents Bacteria Drug Effects Catalysis Electrodes Electrons Fungi Hydrolysis Kinetics Microbial Sensitivity Tests Nickel Nitrophenols Organophosphorus Compounds Oxidation-reduction 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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