Abstract
A new mononuclear complex of nickel(II), [Ni(1H-Indz)4Cl2] (1), where 1H-Indz is the 1H-Indazole ligand, was synthesized and characterized by elemental analysis, FT-IR spectroscopy and single crystal X-ray structure elucidation. Single crystal X-ray analysis indicates that this complex crystallizes in the triclinic system [a = 6.859(3) Å, b = 12.275(6) Å, c = 18.202(9) Å, α = 97.615(9)°, β= 98.336(9)°, γ= 105.118(9)°] and the asymmetric part of unit cell consists of two crystallographically independent neutral mononuclear Ni(II) complexes. The nickel atom in 1 is six-coordinate, as a trans-[Mn(Cl)2(N)4], with four nitrogen atoms from four 1H-indazole ligands, and the overall geometry around nickel(II) ions is best described as a slightly distorted octahedron. The crystal structure of complex 1 is stabilized by several intermolecular N–H⋯Cl hydrogen bonds, C−H⋯π, and π⋯π interactions.
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