trans-Diaquatetrakis(3,5-dimethylpyrazole-N²)nickel(II) dichloride

Abstract

The X-ray structure analysis of [Ni(C(5)H(8)N(2))(4)(H(2)O)(2)]Cl(2) was undertaken to elucidate the geometry around the Ni(2+) ion. The molecule lies on a twofold axis which runs through the O-Ni-O atoms. The geometry around the Ni(2+) ion is best described as slightly distorted tetragonal bipyramidal.

Crystal structure and Hirshfeld surface analysis of dichloridotetrakis(4-methyl-1H-pyrazole-κN 2)nickel(II) acetonitrile disolvate

“…The study of the synthesis, structure and properties of nickel complexes with pyrazoles is also important. Nickel(II) pyrazolate complexes can be synthesized by the reaction between nickel(II) salts and pyrazoles in water or organic solvents (Nicholls & Warburton, 1970;Sun et al, 2002;Małecka et al, 2001;Chen et al, 2009). Nickel complexes incorporating pyrazole-based ligands are used for ethylene dimerization (Wang et al, 2015) or polymerization (Nelana et al, 2004;Moreno-Lara et al, 2015).…”