Hökelek Tuncer, Sağlam Ertuğrul Gazi, Tercan Barış, Aybirdi Ozgür, Necefoğlu Hacali
Acta Crystallogr Sect E Struct Rep Online. 2010 Dec 4;67(Pt 1):m28-9. doi: 10.1107/S160053681005004X.
In the centrosymmetric binuclear title complex, [Co(2)(C(11)H(14)NO(2))(4)(C(10)H(14)N(2)O)(2)], the two Co(II) cations [Co⋯Co = 2.6199 (5) Å] are bridged by four 4-(diethyl-amino)-benzoate (DEAB) anions. The four nearest O atoms around each Co(II) ion form a distorted square-planar arrangement, the distorted square-pyramidal coordination geometry being completed by the pyridine N atom of an N,N-diethyl-nicotinamide (DENA) ligand. The dihedral angle between the benzene ring and the carboxyl-ate group is 7.06 (11)° in one of the independent DEAB ligands and 4.42 (9)° in the other. The benzene rings of the two independent DEAB ligands are oriented at a dihedral angle of 86.35 (8)°. The pyridine ring is oriented at dihedral angles of 31.43 (6) and 57.92 (7)° with respect to the two benzene rings. In the crystal, weak inter-molecular C-H⋯O inter-actions link the mol-ecules into a three-dimensional network. Weak C-H⋯π inter-actions are also present in the crystal structure.
在中心对称的双核标题配合物[Co₂(C₁₁H₁₄NO₂)₄(C₁₀H₁₄N₂O)₂]中，两个Co(II)阳离子[Co⋯Co = 2.6199 (5) Å]由四个4-(二乙氨基)苯甲酸酯(DEAB)阴离子桥联。每个Co(II)离子周围的四个最近邻O原子形成扭曲的平面正方形排列，扭曲的正方锥配位几何结构由N,N-二乙基烟酰胺(DENA)配体的吡啶N原子完成。在一个独立的DEAB配体中，苯环与羧酸酯基团之间的二面角为7.06 (11)°，在另一个中为4.42 (9)°。两个独立的DEAB配体的苯环以86.35 (8)°的二面角取向。吡啶环相对于两个苯环的二面角分别为31.43 (6)°和57.92 (7)°。在晶体中，弱的分子间C-H⋯O相互作用将分子连接成三维网络。晶体结构中也存在弱的C-H⋯π相互作用。
