Transition metal complexes with thiosemicarbazide-based ligands. Part LVI: Nickel(II) complex with 1,3-diphenylpyrazole-4-carboxaldehyde thiosemicarbazone and unusually deformed coordination geometry
АуториVukadin, M. Leovac
Novaković, Slađana B.
Bogdanović, Goran A.
Joksović, Milan D.
Szecsenyi, Katalin Meszaros
Cesljevic, Valerija I.
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Synthesis of a new nickel(II) complex, [Ni(Ph(2)PzTSC-H)(2)] with 1,3-diphenylpyrazole-4-carboxaldehyde thiosemicarbazone (Ph(2)PzTSC), is described. The compounds have been characterized by elemental and thermal analysis, molar conductivity and spectral (UV-Vis, IR, H-1 NMR, and C-13 NMR) measurements. In the case of complex the magnetic measurement has been also performed. Crystal and molecular structures of both the free ligand and the complex have been determined by single crystal X-ray analysis. It was found that the ligand coordinates in a bidentate NS fashion, in its deprotonated thioenolato form. The cis-square-planar geometry of the complex is significantly distorted tetrahedrally. The Cambridge Structural Database (CSD) study has been performed to obtain geometrical and structural informations on similar nickel(II) complexes in order to compare structural data. (c) 2007 Elsevier Ltd. All rights reserved.
Кључне речи:Nickel(II) complex / thiosemicarbazone / spectroscopic and TA studies / crystal structure / CSD study
Извор:Polyhedron, 2007, 26, 14, 3783-3792
ISSN: 0277-5387 (print)