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Bis(1H-pyrazole-?N)bis-(2,4,6-tri-isopropyl-benzoato-?O)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)°.

SUBMITTER: Hrib CG 

PROVIDER: S-EPMC3009229 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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Bis(1H-pyrazole-κN)bis-(2,4,6-tri-isopropyl-benzoato-κO)cobalt(II).

Hrib Cristian G CG   Blaurock Steffen S   Edelmann Frank T FT  

Acta crystallographica. Section E, Structure reports online 20101013 Pt 11

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  ...[more]