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Synthesis and crystal structures of Cu(II) and Pb(II) aroylhydrazone complexes and magnetic properties of [Cu2(L)2(Cl)2(HO)6]n (HL=2-pyridylaldehyde isonicotinoylhydrazone)

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Two novel aroylhydrazones complexes {[Cu2(L)2(Cl)2](H2O)6}n (1), [Pb(L)(CH3COO)] (2), (HL = 2-pyridylaldehyde isonicotinoylhydrazone), were synthesized and structurally characterized by means of X-ray single-crystal diffraction. In complex 1, HL coordinates to Cu(II) using the normal coordination of aroylhydrazone, and also two pyridyl nitrogens forming a coordination polymer. There are strong intermolecular - stacking interactions in 2. Magnetism of complex 1 was studied in the temperature range 5-300 K. The results reveal the occurrence of a weak ferromagnetic coupling with J = 0.29 cm-1.
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Keywords: 2-Pyridylaldehyde isonicotinoylhydrazone (HL); Crystal structure; Cu(II) complex; Magnetic property; Pb(II) complex

Document Type: Research Article

Affiliations: Department of Chemistry, ZhengZhou University, ZhengZhou, P.R. China

Publication date: January 1, 2007

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