Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 66, Issue 5, Pages 748-762Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2013.764413
Keywords
Semicarbazone ligand; Azide ligand; Coordination polymer; X-ray structure; Antimicrobial activity
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Funding
- Tabriz University Research council
- Praemium Academiae of the Academy of Sciences of the Czech Republic
- Slovak Grant Agency [VEGA-1/0159/09]
- ERDF EU (European Union European regional development fund) [ITMS26220120005]
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[Mn(L)((1,1)-N-3)(2)](2) (n) [Mn(H2O)(2)((1,1)-N-3)(2)] (n) (1) and [Cd(HL)((1,1)-N-3)(2)] (n) (2) have been synthesized from HL (HL: pyridine-2-carbaldehyde semicarbazone) and azide ligands, characterized by FT-IR, UV-vis spectroscopy and X-ray crystallography. Single crystal X-ray diffraction revealed that 1 is a coordination polymer consisting of two infinite 1-D chains: chain A with [Mn(L)((1,1)-N-3)(2)](2) (n) and chain B with [Mn(H2O)(2)((1,1)-N-3)(2)] (n) . In both chains, Mn centers are connected via two double end-on (EO) azide bridges. 2 is a coordination polymer consisting of a 1-D infinite chain, where Cd centers are connected via two double EO azide bridges. The electrochemistry of HL, 1 and 2 were studied by cyclic voltammetry. Magnetic susceptibility measurements indicate bulk ferromagnetic coupling for 1 below 5K. Antimicrobial activities of both compounds 1 and 2 were greater than HL, with the strongest effect for 2 consistent with its larger radius and electronegativity of Cd(II) ions.
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