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Structural analysis and physico-chemical characterization of mononuclear manganese(II) and polynuclear copper(II) complexes with pyridine-based alcohol
Abstract
Two novel manganese(II) and copper(II) complexes, mononuclear [Mn(H2O)2(2-(CH2)2OHpy)2](NO3)2 (1) and polynuclear [Cu(SO4)(2-(CH2)2OHpy)2]n (2), based on 2-(hydroxyethyl)pyridine (2-(CH2)2OHpy) were synthesised and fully characterised using X-ray structure analysis as well as spectroscopic, magnetic and thermal methods. Both central metal ions Mn(1) and Cu(1) are coordinated by two N,O-donor 2-(CH2)2OHpy ligands and possess an almost perfect octahedral geometry (a chromophore of {MN2O4} type). The coordination sphere of Mn(II) is completed by two molecules of water, whereas, in polynuclear complex 2, Cu(II) atoms are linked along the a crystallographic direction by bridging sulfate ligands in a μ2-κ2 binding mode to form chains. The intermolecular interactions in 1 and 2 have been interpreted in view of the 3D Hirshfeld surface analysis and associated 2D fingerprint plots. Furthermore, the complexes have been tested with ABTSradical dot+ assay in order to assess their antioxidant activity. In addition, the IC50 values calculated for 1 and 2 revealed that the complexes show a higher antioxidant activity than corresponding ligand.
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Authors (4)
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Małgorzata Zienkiewicz-Machnik mgr
- Jan Kochanowski University in Kielce Institute of Chemistry
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Joanna Masternak dr
- Jan Kochanowski University in Kielce Institute of Chemistry
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Barbara Barszcz dr hab.
- Jan Kochanowski University in Kielce Institute of Chemistry
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF MOLECULAR STRUCTURE
no. 1126,
pages 37 - 46,
ISSN: 0022-2860 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Zienkiewicz-Machnik M., Masternak J., Kazimierczuk K., Barszcz B.: Structural analysis and physico-chemical characterization of mononuclear manganese(II) and polynuclear copper(II) complexes with pyridine-based alcohol// JOURNAL OF MOLECULAR STRUCTURE. -Vol. 1126, (2016), s.37-46
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.molstruc.2016.01.082
- Verified by:
- Gdańsk University of Technology
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