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  • Title: Synthesis and spectroscopic study of copper(II) and manganese(II) complexes with pipemidic acid.
    Author: Szymańska B, Skrzypek D, Kovala-Demertzi D, Staninska M, Demertzis MA.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2006 Mar 01; 63(3):518-23. PubMed ID: 15996512.
    Abstract:
    The interaction of copper(II) and manganese(II) with pipemidic acid, Hpipem, afforded the complexes [Cu(pipem)(2)(H(2)O)] x 2H(2)O, 1 and [Mn(pipem)(2)(H(2)O)], 2. The new complexes have been characterised by elemental analyses, infrared, UV-vis and X-band EPR spectroscopy in the temperature range from 4 to 300 K. The monoanion, pipem, exhibits O,O ligation through the carbonyl and carboxylato oxygen atoms. Five coordinate square-pyramid configuration has been proposed for 1 and 2, and the fifth apical position is occupied by a coordinated water molecule.
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