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Synthesis, Crystal Structure, and Antimicrobial Properties of a Novel 1-D Cobalt Coordination Polymer with Dicyanamide and 2-Aminopyridine


Affiliations
1 Department of Inorganic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
2 Department of Chemistry, The University of Bamenda, P.O. Box 39, Bambili, Bamenda, Cameroon
3 Departement de Chimie, Universite de Douala, Douala, Cameroon
4 Indian Institute of Technology, Madras, Chennai 600036, India
5 Department of Organic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
 

A novel one-dimensional coordination polymer bis(2-aminopyridine)-μ-bis(dicyanamido) cobaltate(II) has been synthesized and characterized by elemental analyses and infrared and ultraviolet visible spectroscopies and the structure has been determined by single crystal X-ray diffraction. Co(II) ion in the complex is coordinated to two axial 2-aminopyridine ligands through the pyridine N-atomand four equatorial dicyanamide ligands to give a CoN6 slightly distorted octahedral coordination environment around the metal ion. The amino N-atom forms intrachain hydrogen bonds. Antimicrobial screening of the complex against eight pathogenic microorganisms (four bacteria and four fungi) isolated from humans, indicates that the complex is moderately active.
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  • Synthesis, Crystal Structure, and Antimicrobial Properties of a Novel 1-D Cobalt Coordination Polymer with Dicyanamide and 2-Aminopyridine

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Authors

Amah Colette Benedicta Yuoh
Department of Inorganic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
Moise Ondoh Agwara
Department of Inorganic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon
Divine Mbom Yufanyi
Department of Chemistry, The University of Bamenda, P.O. Box 39, Bambili, Bamenda, Cameroon
Mariam Aseng Conde
Departement de Chimie, Universite de Douala, Douala, Cameroon
Rajamony Jagan
Indian Institute of Technology, Madras, Chennai 600036, India
Kenneth Oben Eyong
Department of Organic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon

Abstract


A novel one-dimensional coordination polymer bis(2-aminopyridine)-μ-bis(dicyanamido) cobaltate(II) has been synthesized and characterized by elemental analyses and infrared and ultraviolet visible spectroscopies and the structure has been determined by single crystal X-ray diffraction. Co(II) ion in the complex is coordinated to two axial 2-aminopyridine ligands through the pyridine N-atomand four equatorial dicyanamide ligands to give a CoN6 slightly distorted octahedral coordination environment around the metal ion. The amino N-atom forms intrachain hydrogen bonds. Antimicrobial screening of the complex against eight pathogenic microorganisms (four bacteria and four fungi) isolated from humans, indicates that the complex is moderately active.