Bis(1H-pyrazole-κN2)bis(2,4,6-triisopropylbenzoato-κO)cobalt(II)

Abstract

The title compound, [Co(C16H23O2)2(C3H4N2)2] or (C3H4N2)2Co(O2CC6H2iPr3-2,4,6), is a rare example of a tetracoordinate cobalt(II) carboxylate stabilized by ancillary N-heterocyclic ligands. The Co(II) ion resides on a crystallographic twofold axis so that the asymmetric unit comprises one half-molecule. Due to the steric bulk of the 2,4,6-triisopropylphenyl substituents, the carboxylate ligands are both coordinated in a monodentate fashion despite the low coordination number. The coordination geometry around the central Co(II) ion is distorted tetrahedral with angles at Co ranging from 92.27 (18)° to 121.08 (14)°.