Add time:07/19/2019         Source:sciencedirect.com

The Ni(II) complex of 1,1-diethyl-3-(2-chlorobenzoyl) thiourea (L) was synthesized and its crystal structure determined by X-ray crystallography. NiL2 is monoclinic, space group P2l/c(#14), with a=8.229, b=39.277, c=8.485 Å, β=96.8°. The Ni(II) is coordinated in a planar fashion by two S and two O atoms in a cis arrangement. The NiS and NiO bond lengths are approximately 2.14 and 1.84 Å respectively, with the two bonds of each type differing only slightly. The SNiS and O NiO bond angles are 87.6° and 83.0° respectively, but with considerable expansion of the ligand bond angles in the chelate ring.The crystal structure of the free ligand was also determined to compare free and complex bond lengths and angles. It is orthorhombic, space group Pbca(#61), with a=9.856, b=10.128 and c= 26.848 Å.

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