title: A second monoclinic polymorph of {2,6-bis[(2,4,5-trifluoro-phen-yl)imino-meth-yl]pyridine-κN,N',N''}dichloridonickel(II).
abstract: The asymmetric unit of the title compound, [NiCl(2)(C(19)H(9)F(6)N(3))], contains one half-mol-ecule residing on a crystallographic twofold rotation axis. The title compound crystallizes in space group C2/c while the previously reported polymorph was reported in P2(1)/c [Baldovino-Pantaleón et al. (2006 ▶). Adv. Synth. Catal.348, 236-242]. The Ni(2+) ion exhibits a penta-coordinate distorted trigonal-bipyramidal NiCl(2)N(3) geometry, with two Cl atoms in the equatorial plane. In the crystal, mol-ecules are linked by inter-molecular C-F⋯π [F⋯centroid = 2.9676 (14) Å] inter-actions.
authors.forename: Oscar
authors.initials: O
authors.lastname: Baldovino-Pantaleón
authors.forename: Simón
authors.initials: S
authors.lastname: Hernández-Ortega
authors.forename: Reyna
authors.initials: R
authors.lastname: Reyes-Martínez
authors.forename: David
authors.initials: D
authors.lastname: Morales-Morales