title: Bis(1H-pyrazole-κN)bis-(2,4,6-tri-isopropyl-benzoato-κO)cobalt(II).
abstract: The title compound, [Co(C(16)H(23)O(2))(2)(C(3)H(4)N(2))(2)] or (C(3)H(4)N(2))(2)Co(O(2)CC(6)H(2) (i)Pr(3)-2,4,6), is a rare example of a tetra-coordinate cobalt(II) carboxyl-ate stabilized by ancillary N-heterocyclic ligands. The Co(II) ion resides on a crystallographic twofold axis so that the asymmetric unit comprises one half-mol-ecule. Due to the steric bulk of the 2,4,6-triisopropyl-phenyl substituents, the carboxyl-ate ligands are both coordinated in a monodentate fashion despite the low coordination number. The coordination geometry around the central Co(II) ion is distorted tetra-hedral with angles at Co ranging from 92.27 (18)° to 121.08 (14)°.
authors: Chemisches Institut der Otto-von-Guericke-Universität, Universitätsplatz 2, D-39116 Magdeburg, Germany.
authors: Cristian G
authors: CG
authors: Hrib
authors: Steffen
authors: S
authors: Blaurock
authors: Frank T
authors: FT
authors: Edelmann
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677