Catena-Poly[[bis(3,5-dicarboxybenzoato)cobalt(II)]-μ-4,4′-bipyridine

Chun-Sheng Ling,Qiu-Xia Han

doi:10.1107/s1600536808032558

Chun-Sheng Ling, Qiu-Xia Han

Open Access

https://doi.org/10.1107/s1600536808032558

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Abstract

In the title compound, [Co(C9H5O6)2(C10H8N2)]n, the asymmetric unit consists of one Co2+ ion with site symmetry 2, one mono-deprotonated 1,3,5-benzenetricarboxylic acid anion and one-half of a 4,4′-bipyridine (4,4′-bipy) molecule, in which two N and two C atoms have site symmetry 2. In the crystal structure, the Co2+ centre is coordinated by four O atoms from two bidentate carboxylate groups of two anions and two N atoms of two 4,4′-bipy molecules, resulting in infinite chains propagating in [010]. The cobalt coordination is distorted trans-CoO4N2 octahedral and interchain O—H⋯O hydrogen bonds complete the structure.

Highlights

In the title compound, [Co(C9H5O6)2(C10H8N2)]n, the asymmetric unit consists of one Co2+ ion with site symmetry 2, one mono-deprotonated 1,3,5-benzenetricarboxylic acid anion and one-half of a 4,40-bipyridine (4,40-bipy) molecule, in which two N and two C atoms have site symmetry 2
The Co2+ centre is coordinated by four O atoms from two bidentate carboxylate groups of two anions and two N atoms of two 4,40-bipy molecules, resulting in infinite chains propagating in [010]
Symmetry codes: (iv) −x+1/2, −y+3/2, −z; (v) −x+2, −y+1, −z

Summary

Structure Reports Online

Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.003 A; R factor = 0.038; wR factor = 0.098; data-to-parameter ratio = 13.1. In the title compound, [Co(C9H5O6)2(C10H8N2)]n, the asymmetric unit consists of one Co2+ ion with site symmetry 2, one mono-deprotonated 1,3,5-benzenetricarboxylic acid anion and one-half of a 4,40-bipyridine (4,40-bipy) molecule, in which two N and two C atoms have site symmetry 2. The Co2+ centre is coordinated by four O atoms from two bidentate carboxylate groups of two anions and two N atoms of two 4,40-bipy molecules, resulting in infinite chains propagating in [010]. The cobalt coordination is distorted trans-CoO4N2 octahedral and interchain O—HÁ Á ÁO hydrogen bonds complete the structure. Crystal data [Co(C9H5O6)2(C10H8N2)] Mr = 633.37 Monoclinic, C2=c a = 10.6682 (7) Ab = 11.0490 (7) Ac = 22.6563 (14) A = 101.401 (1)

Bruker SMART CCD diffractometer

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