Abstract
In the title coordination polymer, {[Co(CHO2)2(C20H14N4)(H2O)2]·2H2O}n, the CoII atom (site symmetry ) is coordinated by two formate O atoms, two water O atoms and two N atoms from two 1,4-bis(1H-benzimidazol-1-yl)benzene ligands (L), resulting in a distorted trans-CoN2O4 octahedral coordination environment. The complete L ligand is generated by crystallographic inversion symmetry and serves to bridge the cobalt ions into a chain propagating in [1 ]. The dihedral angle between the central benzene ring and the imidazole ring system is 38.48 (12)°. O—H⋯O hydrogen bonds involving both the coordinated and uncoordinated water molecules occur and help to link the chains together.
Highlights
In the title coordination polymer, {[Co(CHO2)2(C20H14N4)(H2O)2]2H2O}n, the CoII atom is coordinated by two formate O atoms, two water O atoms and two N atoms from two 1,4-bis(1H-benzimidazol-1-yl)benzene ligands (L), resulting in a distorted trans-CoN2O4 octahedral coordination environment
The complete L ligand is generated by crystallographic inversion symmetry and serves to bridge the cobalt ions into a chain propagating in [111]
Symmetry codes: (iii) x+1, y, z; (iv) x−1, y, z; (v) −x+1, −y, −z+1
Summary
Gang Shia a College of Science, Chang’an University, Xi’an 710064, Shaanxi, People’s Republic of China, and bKey Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong. R factor = 0.038; wR factor = 0.106; data-to-parameter ratio = 12.4. In the title coordination polymer, {[Co(CHO2)2(C20H14N4)(H2O)2]2H2O}n, the CoII atom (site symmetry 1) is coordinated by two formate O atoms, two water O atoms and two N atoms from two 1,4-bis(1H-benzimidazol-1-yl)benzene ligands (L), resulting in a distorted trans-CoN2O4 octahedral coordination environment. The complete L ligand is generated by crystallographic inversion symmetry and serves to bridge the cobalt ions into a chain propagating in [111]. The dihedral angle between the central benzene ring and the imidazole ring system is 38.48 (12). O—H O hydrogen bonds involving both the coordinated and uncoordinated water molecules occur and help to link the chains together
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