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Vol. 31 No. 4 (2019): Vol 31 Issue 4

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Synthesis, Characterization and DFT Studies of Some Co(II) and Cu(II) Complexes of 12-Membered Tetradentate [N4] Macrocyclic Schiff Base Derived from 9,10-Phenanthrenequinone

https://doi.org/10.14233/ajchem.2019.21861
Afreen Anjum1
1Synthetic Inorganic and Metallo-Organic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj-211002, India 2Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India *Corresponding author: E-mail: aanjum700@gmail.com
ar Paswan1
1Synthetic Inorganic and Metallo-Organic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj-211002, India 2Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India *Corresponding author: E-mail: aanjum700@gmail.com
Manoj Kumar1
1Synthetic Inorganic and Metallo-Organic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj-211002, India 2Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India *Corresponding author: E-mail: aanjum700@gmail.com
Habib Ali2
1Synthetic Inorganic and Metallo-Organic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj-211002, India 2Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India *Corresponding author: E-mail: aanjum700@gmail.com
Raj Kumar Dubey1
1Synthetic Inorganic and Metallo-Organic Research Laboratory, Department of Chemistry, University of Allahabad, Prayagraj-211002, India 2Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India *Corresponding author: E-mail: aanjum700@gmail.com

Asian Journal of Chemistry, Vol. 31 No. 4 (2019): Vol 31 Issue 4

Abstract

The structures of some coordination compounds of cobalt(II) and copper(II) with macrocyclic Schiff bases obtained by the reaction of 9,10-phenanthrenequinone with diamines synthesized in 1:1 molar ratio(s) have been elucidated by various physico-chemical methods viz. elemental analysis, IR, UV-visible, mass, ESR. The surface morphology was determined by SEM analysis. Infrared spectra suggested that ligand was coordinated to the metal ion in a tetradentate manner through azomethine nitrogen atom by the change in its stretching frequency. ESR spectra of copper(II) complexes indicates the presence of unpaired electron in the dx2–y2 by calculating the g values. The optimized geometries which were calculated using the DFT/B3LYP method were compared with the molecular geometries obtained experimentally.

Keywords

Macrocyclic ligands Tetrahedral Square planar Co(II) Cu(II) complex 9 10-Phenanthrenequinone
Anjum1, A., Paswan1, ar, Kumar1, M., Ali2, H., & Kumar Dubey1, R. (2019). Synthesis, Characterization and DFT Studies of Some Co(II) and Cu(II) Complexes of 12-Membered Tetradentate [N4] Macrocyclic Schiff Base Derived from 9,10-Phenanthrenequinone. Asian Journal of Chemistry, 31(4), 943–950. https://doi.org/10.14233/ajchem.2019.21861
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