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Vol. 30 No. 1 (2018): Vol 30 Issue 1

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Study of Tetragonally Compressed Complexes of Fe(II), Ni(II) and Cu(II)

https://doi.org/10.14233/ajchem.2018.20884
Sudama Chaudhry
Department of Chemistry, Magadh University, Bodh Gaya-824 234, India
Sumit Kumar Sinha
Department of Chemistry, Magadh University, Bodh Gaya-824 234, India
Parveen Kumar
Department of Chemistry, Magadh University, Bodh Gaya-824 234, India
Punit Kumar
Department of Chemistry, Magadh University, Bodh Gaya-824 234, India
Trilok Prasad
Department of Chemistry, Ram Nagina Singh College, Maner, Patna-801 111, India
Shivadhar Sharma
Department of Chemistry, Magadh University, Bodh Gaya-824 234, India

Corresponding Author(s) : Shivadhar Sharma

sharma.shivadhar@gmail.com

Asian Journal of Chemistry, Vol. 30 No. 1 (2018): Vol 30 Issue 1

Abstract

4’-Nitrobenzaldehyde-4-phenylsemicarbazone and 4’-nitrobenzaldehyde-4-phenylthiosemicarbazone have been used as primary ligands for complexatation with Fe(II), Ni(II) and Cu(II). The complexes have been formulated as [M(NBPS)2X2] and [M(NBPTS)2X2] where, M = Fe(II), Ni(II) and Cu(II), NBPS = 4’-nitrobenzaldehyde-4-phenylsemicarbazone and NBPTS = 4’-nitrobenzaldehyde-4-phenyl thiosemicarbazone and X = CH3COO–. The IR spectra of the metal-complexes in comparison to free ligands reveal that ligands act as monoanionic bidentate forming five membered chelate rings around the metal ion. The electronic spectra of the metal-complexes indicate tetragonally distorted octahedral geometry around the metal ion in complexes. The various crystal field parameters have been derived from the electronic spectra of the complexes. The greater value of Dq(z) in comparison to the Dq(xy) values as well as the negative values of Dt clearly indicate tetragonally compression along Z-axis. The complexes have also been evaluated for their biological activities and it has been observed that biological activities of free ligands enhanced after complex formation.

Keywords

Tetragonally compressed octahedral Dq(z) Dt
Chaudhry, S., Sinha, S. K., Kumar, P., Kumar, P., Prasad, T., & Sharma, S. (2017). Study of Tetragonally Compressed Complexes of Fe(II), Ni(II) and Cu(II). Asian Journal of Chemistry, 30(1), 69–72. https://doi.org/10.14233/ajchem.2018.20884
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