Synthesis and characterization of pyridine N-oxide complexes of manganese, copper and zinc |
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| Authors: | Rupam Sarma Anirban Karmakar Jubaraj B. Baruah |
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| Affiliation: | aDepartment of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039 Assam, India |
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| Abstract: | A series of metal carboxylates containing pyridine N-oxide are prepared via one pot synthesis and solid phase synthesis. The structural variations from metal to metal are observed. In the case of reactions of manganese(II) acetate with pyridine N-oxide in the presence of aromatic carboxylic acids, polymeric complexes with bridging aromatic carboxylate as well as bridging pyridine N-oxide are observed. Whereas, the reaction of copper(II) acetate with pyridine N-oxide in the presence of an aromatic carboxylic acid led to mononuclear or binuclear paddle wheel carboxylate complexes with monodentate pyridine N-oxide. Co-crystal of two neutral complexes having composition [Cu2(OBz)4(MeOH)2][Cu2(OBz)4(pyO)2] (where OBz = benzoate, pyO = pyridine N-oxide) each neutral parts have paddle wheel structure. Solid phase reaction of zinc chloride with sodium benzoate prepared in situ and pyridine N-oxide leads to a tetra-nuclear zinc complex. |
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| Keywords: | Metal-carboxylates Pyridine N-oxide Co-ordination polymers Co-crystals |
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