Synthesis, crystal structure and antibacterial activities of mixed ligand copper(II) and cobalt(II) complexes of a NNS Schiff base
- Author(s)
- Mahendra Ghosh, Manas Layek, Michel Fleck, Rajat Saha, Debasis Bandyopadhyay
- Abstract
Two new copper(II) complexes of different nuclearities, viz. mononuclear [CuL2(H2O)](ClO4)2 (1), binuclear [Cu2L2(NCS)2(NO3)2] (2) and a mononuclear cobalt(II) complex, [CoL2(NCS)2] (3), where HL = 2-{[pyridin-2-ylmethylidene]amino}benzenethiol, a tridentate Schiff base derived from 2-aminothiophenol and pyridine-2-al have been prepd. The complexes have been characterized by microanal., spectroscopic, single crystal X-ray diffraction and other physicochem. studies. Structural studies reveal that 1 is a mononuclear copper(II) complex with distorted square pyramidal geometry. But, 2 is a thiocyanato-bridged binuclear species in which each copper(II) ion adopts an irregular octahedral geometry contg. chelating nitro groups. Complex 3 is comprised of a mononuclear octahedral unit contg. two thiocyanato groups in cis positions around the central cobalt(II) ion. The complex units in 1-3 are held together by H-bonding, p···p or O···p interactions to develop supramol. network in their resp. solid states. The antibacterial activity of all the complexes along with the constituent Schiff base ligand has been evaluated against some Gram(+) and Gram(-?) bacteria.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Bankura Christian College, Jadavpur University
- Journal
- Polyhedron
- Volume
- 85
- Pages
- 312-319
- No. of pages
- 8
- ISSN
- 0277-5387
- DOI
- https://doi.org/10.1016/j.poly.2014.08.014
- Publication date
- 08-2014
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104015 Organic chemistry, 104011 Materials chemistry, 105113 Crystallography, 301206 Pharmacology
- Keywords
- ASJC Scopus subject areas
- Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/synthesis-crystal-structure-and-antibacterial-activities-of-mixed-ligand-copperii-and-cobaltii-complexes-of-a-nns-schiff-base(d34def5f-b1a2-4e9a-8358-f42367b39641).html