Research Article: Tetra­ethyl­ammonium tris­(thio­cyanato-κN)[tris­(1H-pyrazol-1-yl-κN2)methane]­nickelate(II)

Date Published: July 01, 2012

Publisher: International Union of Crystallography

Author(s): Ganna Lyubartseva, Sean Parkin, Uma Prasad Mallik, Hee Kyung Jeon.

http://doi.org/10.1107/S1600536812024774

Abstract

The title salt, (C8H20N)[Ni(NCS)3(C10H10N6)], consists of a tetra­ethyl­ammonium cation and an anion comprising an octa­hedral NiII atom surrounded by three N atoms from a tripodal tris­(pyrazol-1-yl)methane ligand, and three thio­cyanate ligands, each bound at the N-atom end. The ligand Ni—N distances range from 2.097 (2) to 2.127 (2) Å for the tripodal ligand and from 2.045 (2) to 2.075 (2) Å for the thio­cyanate ligands. The dihedral angles between the three pyrazole rings are 59.03 (12), 53.09 (10) and 67.90 (10)°.

Partial Text

For the ligand synthesis, see: Reger et al. (2000 ▶). For structural, spectroscopic and angular overlap studies of tris­(pyrazol-1-yl)methane complexes, see: Astley et al. (1993 ▶). For literature on tris­(pyrazol-1-yl)borate, see: Czernuszewicz et al. (1987 ▶); Kitajima et al. (1992 ▶); Lippard & Armstrong (1985 ▶); Lippard et al. (1990 ▶). For a related structure, see: Lyubartseva et al. (2011 ▶).

Source:

http://doi.org/10.1107/S1600536812024774