Homo- and heteronuclear complexes of a new,vicinal dioxime ligand |
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Authors: | M Serin G Karayel R Gup |
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Institution: | (1) Department of Chemistry, Mugla University, 48000 Kotekli-Mugla, Turkey |
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Abstract: | A new symmetrical vicinal dioxime, N,N′-bis-{4-(2-hydroxyphenyl)methylene]hydrazinecarbonyl]phenyl}diaminoglyoxime (LH4), was prepared by reacting anti-dichloroglyoxime with salicylaldehyde 4-aminobenzoylhydrazone. The reaction of ligand with Ni2+ salts gave mono-and homopentanuclear complexes, Ni(LH3)2] and Ni5(LH)2X2]. Furthermore, heteropentanuclear complexes of dioxime ligand, Cu4Ni(LH)2X4], were prepared by the reaction of Ni(LH3)2)] with Cu2+ salt and a monodentate ligand (X = SCN−, CN−, or N
3
−
). The structures of both the new symmetrical vicinal dioxime and its complexes were identified by elemental analyses, IR,
1H NMR, UV-VIS spectra, and magnetic susceptibility. The elemental analyses and spectral data indicate that the hydrazone side
of ligand acts as a O,N,O′ tridentate and the fourth position is occupied with monodentate anion such as SCN−, CN−, N
3
−
. |
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Keywords: | vic-dioxime hydrazone homonuclear complexes heteronuclear complexes nickel copper |
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