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1 2006

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Structural and Spectroscopic Characterization of Mixed Ligand Complex: Bis(quinoline-2-carboxylato)bis(imidazole)manganese(II)

Dobrzyńska D., Jerzykiewicz L., Jezierska J., Słoniec E.

Polish Journal of Chemistry

2006

Vol. 80, nr 11

1789-1797

A new complex, [Mn(quin-2-c)2(Him)2] (quin-2-c = quinoline-2-carboxylate ion, Him = imidazole), was synthesized by self assembly and its structure was determined by X-ray analysis. The compound crystallizes in the centrosymmetric space group C2/c with the Mn atom on a twofold axis, a = 18.091(6) Alfa; b = 10.125(4) Alfa; c = 13.708(5) Alfa; Beta= 111.73(3)graduate; V = 2332.5(15) Alfa3 and Z = 4 (T = 100 K). Strong hydrogen bonds between imidazole moieties and carboxylate groups connect themolecules of the complex into the 1D chains extending parallel to the c axis. The interchain contacts of the C-HźźźO, C-HźźźN,piźźźpi and C-Hźźźpi type influence the architecture of the crystal. The complex was characterized by thermal analysis, and by EPR and IR spectroscopy.