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Journal of Structural Chemistry

2014 year, number 3

COORDINATIVE PROPERTIES OF THE PYRIDINE-2-CARBALDEHYDE THIOSEMICARBAZONE LIGAND TOWARDS NI(II)

C. Graiff, S. Canossa, G. Predieri
UniversitГ  di Parma, Italy
Keywords: nickel, thiosemicarbazone complexes, crystal structure

Abstract

Three crystal structures of Ni compounds containing bis(pyridine-2-carbaldehyde thiosemicarbazone) ligand (HL), namely (pyridine-2-carbaldehyde thiosemicarbazonato)(pyridine-2-carbaldeyde thiosemicarbazone) nickel(II) nitrate hydrate [Ni(HL)L][NO 3]×(H 2O) (1), bis(pyridine-2-carbaldehyde thiosemicarbazone) nickel(II) dinitrate [Ni(HL) 2][NO 3] 2 (2a), and bis(pyridine-2-carbaldehyde thiosemicarbazone) nickel(II) dinitrate dihydrate [Ni(HL) 2][NO 3] 2×2(H 2O) (2b) are determined by X-ray diffraction methods. Comparative structural studies are carried out.