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Crystal structure of catena-poly[bis-(tetra-ethyl-ammonium) [tetra-aqua-tris(μ-dicyanamido-κ2N1:N5)bis(dicyanamido-κN1)di-cobaltate(II)] dicyanamide].

ABSTRACT: The structure of the title compound, [N(C2H5)4]2[Co2(C2N3)5(H2O)4](C2N3), is a new example of a metal-dicyanamide coordination polymer which exhibits a unique three-dimensional framework of covalently linked CoII chains. All bridging dicyanamide ligands in the title structure are in the μ1,5-bridging mode. The anionic CoII-dicyanamide network is templated by tetra-ethyl-ammonium cations residing in a series of channels extending along the b axis where additional non-coordinating dicyanamidate anions are also located. The framework structure is further stabilized by O-H⋯N hydrogen bonding between aqua ligands and dicyanamido ligands or the dicyanamide anion. In addition, C-H⋯N inter-actions are present between the tetra-ethyl-ammonium cations and dicyanamide amide nitro-gen atoms.

SUBMITTER: Liu C 

PROVIDER: S-EPMC5095843 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Crystal structure of <i>catena</i>-poly[bis-(tetra-ethyl-ammonium) [tetra-aqua-tris(μ-dicyanamido-κ<sup>2</sup><i>N</i><sup>1</sup>:<i>N</i><sup>5</sup>)bis(dicyanamido-κ<i>N</i><sup>1</sup>)di-cobaltate(II)] dicyanamide].

Liu Chen C   Thuijs Annaliese E AE   Abboud Khalil A KA  

Acta crystallographica. Section E, Crystallographic communications 20161021 Pt 11

The structure of the title compound, [N(C<sub>2</sub>H<sub>5</sub>)<sub>4</sub>]<sub>2</sub>[Co<sub>2</sub>(C<sub>2</sub>N<sub>3</sub>)<sub>5</sub>(H<sub>2</sub>O)<sub>4</sub>](C<sub>2</sub>N<sub>3</sub>), is a new example of a metal-dicyanamide coordination polymer which exhibits a unique three-dimensional framework of covalently linked Co<sup>II</sup> chains. All bridging dicyanamide ligands in the title structure are in the <i>μ</i><sub>1,5</sub>-bridging mode. The anionic Co<sup>II</sup>-dic  ...[more]

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