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INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016 open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15 |
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| Paper Title: | Synthesis, spectral and thermal studies of Co(II), Ni(II), Cu(II) and Zr(IV) complexes of salicylaldehyde salicyloyl hydrazone and their antimicrobial activity. |
| Authors Name: | Swati D. Deshmukh , Dr. Prashant R. Mandlik |
| Unique Id: | IJSDR2012007 |
| Published In: | Volume 5 Issue 12, December-2020 |
| Abstract: | A series of metal complexes of Co(II), Ni(II), Cu(II) and Zr(IV) with a Schiff base derived from salicyaldehyde and salicyloyl hydrazide were synthesized and characterized by several techniques, including elemental analyses, molar conductance, magnetic moments, electronic, 1H NMR, mass, IR, ESR spectra, and thermal studies (TGA & DTA). All the complexes are coloured solids, air stable, non-hygroscopic and soluble in DMF and DMSO only and are non-electrolytes. The magnetic moment values and electronic spectral data indicate a square planar geometry for Co(II), Ni(II) and Cu(II) and octahedral geometry for Zr(IV) complexes. IR spectral data suggest that the ligand behaves as dibasic tridentate with ONO (enol form) donor sequence towards Co(II), Ni(II), Cu(II) and Zr(IV) complexes. The thermal data has been investigated to observed degradation pattern and kinetic parameters Entropy Change (∆S), Free Energy Change (∆F) and apparent entropy change (S*) were calculated using Freemann-Carroll and Sharp-Wentwoth method. ESR spectra of copper complex are recorded and discussed. The antimicrobial activity of the ligand and its metal complexes by well diffusion method against Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli and Klebsiella pneumoniae are also reported. The complex exhibit increased activity than the ligand. |
| Keywords: | hydrazone, complexes, TGA, electronic spectral data, antimicrobial. |
| Cite Article: | "Synthesis, spectral and thermal studies of Co(II), Ni(II), Cu(II) and Zr(IV) complexes of salicylaldehyde salicyloyl hydrazone and their antimicrobial activity. ", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.5, Issue 12, page no.30 - 36, December-2020, Available :http://www.ijsdr.org/papers/IJSDR2012007.pdf |
| Downloads: | 000337213 |
| Publication Details: | Published Paper ID: IJSDR2012007 Registration ID:192751 Published In: Volume 5 Issue 12, December-2020 DOI (Digital Object Identifier): Page No: 30 - 36 Publisher: IJSDR | www.ijsdr.org ISSN Number: 2455-2631 |
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