Abstract
The nickel(II) complex, Ni[C5H4N–CH=N–N=C(O)–C6H5]2 (1) containing a N,N,O-donor hydrazone ligand, which is the 1:1 condensation product of benzhydrazide and pyridine-2-carboxaldehyde has been synthesized and characterized by single crystal X-ray diffraction technique, spectral study and room-temperature magnetic moments. Structural investigation shows that 1 crystallizes to a monoclinic system, having space group P2(1)/c, a = 11.221(4), b = 8.893(3), c = 23.026(8) Å, β = 90.605(14)°, and Z = 4. The central nickel atom is in an N4O2 coordination sphere developed with the NNO donor sets of the two independently hydrazone ligands. The Ni–N (pyridine), Ni–N (imine) and Ni–O (enolate) bond distances are 2.144(2) and 2.128(2); 1.980(2) and 1.985(2); 2.0782(17) and 2.1106(17) Å, respectively. The effective magnetic moment (μ eff) value of 1 is found to be 3.10 B.M. at 300 K.
Graphical Abstract
The Ni(II) complex, Ni[C5H4N–CH=N–N=C(O)–C6H5]2 containing a hydrazone ligand has been generated into which the central Ni(II) atom belongs to a N4O2 coordination environment arised from the enol form of the ligand. It possesses a distorted octahedral geometry.
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Acknowledgments
KD and CS would like to thank to CSIR (Council of Science and Industrial Research, New Delhi, India, 2337/09/EMR-II) for the grant. AD and NR express their appreciation to the National Research Foundation (NRF), South Africa for providing the X-ray diffractometer facility.
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Das, K., Sinha, C., Datta, A. et al. Synthesis and Structural Characterization of a Nickel(II) Complex with Unsymmetrical NNO-Donor Schiff Base Ligand. J Chem Crystallogr 41, 1032–1035 (2011). https://doi.org/10.1007/s10870-011-0040-8
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DOI: https://doi.org/10.1007/s10870-011-0040-8