Study of Mixed Amide Coordination Compounds of Copper (II) Nicotinate
Chemical Science International Journal, Volume 31, Issue 4,
Page 12-20
DOI:
10.9734/CSJI/2022/v31i4815
Abstract
Complexes of copper (II) nicotinate with acid amides were synthesized to vary the composition and the individual properties of the compounds obtained through coordination of the nicotinate group to acetamide, carbamide, thiocarbamide and nicotinamide (L1, L2). The coordination of the organic ligands, the environment of the central ion and the thermal behaviour of the synthesized compounds were elucidated by vibrational spectroscopy and thermal analysis. The relative intensities and the spatial structures of copper (II) nicotinate and the synthesized complexes showed that the new coordination compounds differ from each other and the original components, as they have unique crystal lattices. X-ray diffraction (XRD) analysis was used to obtain diffraction patterns of free molecules of ligands, copper nicotinate, and synthesized coordination compounds. The thermal behaviour of the synthesized compounds was investigated and the thermolysis products were identified. The stepwise decomposition of the synthesized compounds was found with several endo - and exo effects correspond to the decomposition of the constituent parts of the complexes. Based on the intensity of the electronic spectrum of diffuse reflection and the values of the bands, the six-coordination environment of Cu (II) the synthesized complexes was proven.
- Coordination compounds
- synthesis
- IR spectroscopy
- X-ray diffraction analysis
- thermal behaviour
How to Cite
References
Do Nascimento ALCS, Caires FJ, Gomes DJC, Gigante AC, Ionashiro M. Thermal behaviour of nicotinic acid, sodium nicotinate and its compounds with some bivalent transition metal ions. Thermochimica Acta. 2014;575:212 –218.
Yeh CW, Suen MC, Hu HL, Chen JD, Wang JC. Synthesis and structural characterization of two new chiral coordination polymers of Cu(nicotinate)2(H2O) and Co(nicotinate)2. Polyhedron. 2004; 23:1947–1952.
Sarma R, Boudalis AK, Baruah JB. Aromatic N-oxide bridged copper(II) coordination polymers: Synthesis, characterization and magnetic properties. Inorganica Chimica Acta. 2010;363: 2279–2286.
Wahid F, Wang HS, Lu YS, Zhong C, Chu LQ. Preparation, characterization and antibacterial applications of carboxymethyl chitosan/ CuO nanocomposite hydrogels. International Journal of Biological Macromolecules. 2017;101:690-695.
Hosseinzadeh Ahmad M. Coordination geometry in metallo-supramolecular polymer networks. Coordination chemistry. 2022;471.
Available:https://doi.org/10.1016/j.ccr.2022.214733
Steed JW, Tocher DA. Dynamic behaviour in nicotinate-bridged binuclear ruthenium (IV) complexes. Polyhedron. 2018;147:152–155.
Rajasekhar B. et al. Nonlinear optical and G-Quadruplex DNA stabilization properties of novel mixed ligand copper(II) complexes and coordination polymers: Synthesis, structural characterization and computational studies. Journal of Molecular Structure. 2018;1156 690-699.
Jean-Louis D, Tomislav F. Mechanochemistry: A force of synthesis. ACS Central Science. 2017;3:13–19.
Zhebentyaev AI, Zhernosek AK, Talut IE. Analytical chemistry. Chemical methods of analysis. Minsk: New Knowledge. 2011;542.
Bazhenova LN. Quantitative elemental analysis of organic compounds. – Yekaterinburg. 2008; 356.
Kuznetsova GA. Qualitative X-ray phase analysis. Irkutsk. 2005;28. (In Russian).
Yakimov IS, Dubinin PS. Quantitative X-ray phase analysis. Kiev: IPK SFU. 2008;25.
Egorov-Tismenko Yu.K. Crystallography and Crystal Chemistry, Moscow. 2005;589.
Gabbott P. (Ed.) Principles and applications of thermal analysis. Singapore: Wiley-Blackwell. 2008; 480.
Ibragimova MR, Azizov TA. IR - spectroscopic and thermal study of nitrocarbamide complex compounds of magnesium nicotinate. Chemical Industry. Russian Federation. 2016;5:217-223.
Drago R. Physical methods in chemistry.- Moscow: Mir. 1981;T 1.- 456 p.
Liver E. Electronic spectroscopy of inorganic compounds. - Moscow: Mir. 1987;493 .
-
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