European Journal of Chemistry

Synthesis, structural elucidation and antimicrobial effectiveness of coordination entities of cobalt (II) and nickel (II) derived from 9,17-diaza-2,6,11,15-tetrathia-1,7,10,16-(1,2)-tetrabenzenacyclooctadecaphan-8,17-diene

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Rajiv Kumar
Rajni Johar
Anil Krishan Aggarwal


9,17-Diaza-2,6,11,15-tetrathia-1,7,10,16-(1,2)-tetrabenzenacyclooctadecaphan-8,17-diene, macrocycle was synthesized, thereafter formulation and designing strategies applied for the preparation of coordination entities of Co(II) and Ni(II). Coordination behaviour of N2S4 donor macrocycle towards metal ion(s) was assessed by physiochemical measurements and spectral investigations viz. elemental analysis, molar conductance, magnetic susceptibility measurements, infrared, UV-Vis, 1H and 13 C NMR, mass spectroscopy, electron paramagnetic resonance (EPR), cyclic voltammetry and molecular modeling. Side-by-side comparison of the spectral findings exposed different geometrical aspects of macrocycle and coordination entities. Cyclic voltammogram showed fully oxidized and reduced species in one unified experiment. Macrocycle and coordination entities were screened for antimicrobial effectiveness (antifungal properties against Aspergillus-niger).


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Kumar, R.; Johar, R.; Aggarwal, A. K. Synthesis, Structural Elucidation and Antimicrobial Effectiveness of Coordination Entities of Cobalt (II) and Nickel (II) Derived from 9,17-Diaza-2,6,11,15-Tetrathia-1,7,10,16-(1,2)-Tetrabenzenacyclooctadecaphan-8,17-Diene. Eur. J. Chem. 2012, 3, 57-64.

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Central Science Library, University Delhi, Delhi, India, Indian Institute of Technology Bombay and Indian Institute of Technology Delhi,
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