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Synthesis and Spectroscopy Studies of New Neodymium(III) Complexes with Cyanamide Derivatives as N-Donor Ligand

M. Khorasani-Motlagh*, M. Noroozifar, S. Niroomand and J. Saffari

Department of Chemistry, University of Sistan & Baluchestan, Zahedan, Iran, P.O. Box 98147-155

Four new complexes [Nd(phen)2(pcyd)3] (1), [Nd(phen)2(2-Clpcyd)3] (2), [Nd(phen)2(2,3,5-Cl3pcyd)3] (3) and [Nd(phen)2(2,3,4,5-Cl4pcyd)3] (4) where pcyd = phenylcyanamide anion, 2-Clpcyd = (2-chlorophenyl)cyanamide anion, 2,3,5-Cl3pcyd = (2,3,5-threechlorophenyl)cyanamide anion and 2,3,4,5-Cl4pcyd = (2,3,4,5-tetrachlorophenyl)cyanamide anion, were prepared and characterized by IR, UV-Vis and 1H NMR spectroscopy as well as elemental analysis. The 1H NMR spectra of these complexes show broadening of ligand protons attributed to coordination of paramagnetic center.

Keywords: Lanthanide, Neodymium, Cyanamides, Coordination compounds