Synthesis, structures, and antibacterial activity of Schiff-base cobalt(III) complexes

Two new Schiff-base cobalt(III) complexes, [CoL 1 (En)N 3 ]Cl ( I ) and [CoL 2 N 3 (OH 2 )] ( II ), where L 1 , L 2 , and En are 2-[1-(2-aminoethylimino)ethyl]phenolate, bis(5-chlorosalicylidene)ethane-1,2-diamine, and 1,2-ethylenediamine, respectively, have been prepared and characterized by physic...

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Bibliographic Details
Published in:Russian journal of coordination chemistry 2014-02, Vol.40 (2), p.120-124
Main Authors: Dai, C. H., Mao, F. L.
Format: Article
Language:English
Subjects:
Bacillus
Chemistry
Chemistry and Materials Science
Escherichia coli
Inorganic Chemistry
Physical Chemistry
Pseudomonas aeruginosa
Staphylococcus aureus
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Summary:Two new Schiff-base cobalt(III) complexes, [CoL 1 (En)N 3 ]Cl ( I ) and [CoL 2 N 3 (OH 2 )] ( II ), where L 1 , L 2 , and En are 2-[1-(2-aminoethylimino)ethyl]phenolate, bis(5-chlorosalicylidene)ethane-1,2-diamine, and 1,2-ethylenediamine, respectively, have been prepared and characterized by physicochemical methods and single crystal X-ray determination. Complex I crystallizes in monoclinic system space group P 2 1 / n with a = 7.113(1), b = 21.385(1), c = 10.599(1) Å, β = 106.067(2)°, V = 1549.2(3) Å 3 , Z = 4, R 1 = 0.0322, and wR 2 = 0.0800. Complex II crystallizes in monoclinic system space group P 2 1 / c with a = 1.679(1), b = 11.145(1), c = 12.493(1) Å, β = 110.553(2)°, V = 1783.5(2) Å 3 , Z = 4, R 1 = 0.0360, and wR 2 = 0.0838. Single crystal X-ray diffraction analysis reveals that the Co atoms in the complexes are six-coordinated in octahedral geometry. The complexes were screened in vitro for their antibacterial activity against Bacillus subtillis, Staphylococcus aureus, Escherichia coli , and Pseudomonas aeruginosa .
ISSN:1070-3284
1608-3318
DOI:10.1134/S107032841402002X