链状聚[[[三水合-(4-氰基苯甲酸根-κO)镍(II)]-μ-4,4'-联吡啶-κ(2)N:N']4-氰基苯甲酸盐]的晶体结构
Crystal structure of catena-poly[[[tri-aqua-(4-cyano-benzoato-κO)nickel(II)]-μ-4,4'-bi-pyridine-κ(2) N:N'] 4-cyano-benzoate].
作者信息
Morales-Tapia Alfredo A, Colorado-Peralta Raúl, Duarte-Hernández Angélica M, Flores-Parra Angelina, Rivera José María
机构信息
Facultad de Ciencias Químicas, Universidad Veracruzana, Prolongación Oriente 6, No. 1009, Colonia Rafael Alvarado, CP 94340, Orizaba, Veracruz, Mexico.
Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CP 07360, México, D.F., Mexico.
出版信息
Acta Crystallogr E Crystallogr Commun. 2015 Oct 17;71(Pt 11):m197-8. doi: 10.1107/S2056989015018344. eCollection 2015 Nov 1.
In the title polymeric complex salt, {Ni(C8H4NO2)(C10H8N2)(H2O)3} n , the Ni(II) cation is coordinated by a 4-cyano-benzoate anion, two 4,4'-bi-pyridine ligands and three water mol-ecules in a distorted N2O4 octa-hedral geometry. The 4,4'-bi-pyridine ligands bridge the Ni(II) cations to form polymeric chains of the title complex cations, propagating along the c-axis direction. The dihedral angle between the pyridine rings of the 4,4'-bi-pyridine ligand is 24.9 (6)°. In the crystal, the uncoordinating 4-cyano-benzoate anions link with the complex cations via O-H⋯O hydrogen bonds into a three-dimensional supra-molecular architecture. Weak C-H⋯O, C-H⋯N inter-actions and π-π stacking [centroid-to-centroid distances = 3.566 (4) and 3.885 (4) Å] are also observed in the crystal.
在标题聚合物络合盐{Ni(C₈H₄NO₂)(C₁₀H₈N₂)(H₂O)₃}ₙ中，Ni(II)阳离子由一个4-氰基苯甲酸根阴离子、两个4,4'-联吡啶配体和三个水分子配位，形成扭曲的N₂O₄八面体几何构型。4,4'-联吡啶配体桥连Ni(II)阳离子，形成标题配合物阳离子的聚合物链，沿c轴方向延伸。4,4'-联吡啶配体的吡啶环之间的二面角为24.9 (6)°。在晶体中，未配位的4-氰基苯甲酸根阴离子通过O-H⋯O氢键与配合物阳离子相连，形成三维超分子结构。晶体中还观察到弱的C-H⋯O、C-H⋯N相互作用和π-π堆积[质心到质心距离 = 3.566 (4) 和3.885 (4) Å]。
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