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4-(Dimethyl-amino)pyridinium tri-bromido-{3-[bromo/hydro-(0.9/0.1)]-4-(dimethyl-amino)pyridine-?N}cobaltate(II).

ABSTRACT: The reaction of a cobalt(II) salt with 4-(dimethyl-amino)pyridinium hydro-bromide perbromide yielded the title compound, (C(7)H(11)N(2))[CoBr(3)(C(7)H(9.1)Br(0.9)N(2))]. In the anion, the Co(II) atom is coordinated in a distorted tetra-hedral geometry by three Br atoms and the pyridine N atom of a bromine-substituted 4-(dimethyl-amino)pyridine mol-ecule, whose formation probably results from an incomplete substitution (90%) catalysed by the Co(II) ion. One of the three bromine atoms bonded to the metal is disordered over two sites in a 0.9:0.1 ratio. An N-H?Br hydrogen bond connects the cation and anion.

SUBMITTER: Lo KM

PROVIDER: S-EPMC2977443 | biostudies-literature | 2009

REPOSITORIES: biostudies-literature

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4-(Dimethyl-amino)pyridinium tri-bromido-{3-[bromo/hydro-(0.9/0.1)]-4-(dimethyl-amino)pyridine-κN}cobaltate(II).

Lo Kong Mun KM Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20090722 Pt 8

The reaction of a cobalt(II) salt with 4-(dimethyl-amino)pyridinium hydro-bromide perbromide yielded the title compound, (C(7)H(11)N(2))[CoBr(3)(C(7)H(9.1)Br(0.9)N(2))]. In the anion, the Co(II) atom is coordinated in a distorted tetra-hedral geometry by three Br atoms and the pyridine N atom of a bromine-substituted 4-(dimethyl-amino)pyridine mol-ecule, whose formation probably results from an incomplete substitution (90%) catalysed by the Co(II) ion. One of the three bromine atoms bonded to th ...[more]

PMID: 21583405

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