Aydın Omür, Caylak Delibaş Nagihan, Necefoğlu Hacali, Hökelek Tuncer
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):m409-10. doi: 10.1107/S1600536812010367. Epub 2012 Mar 14.
In the centrosymmetric binuclear title complex, [Cu(2)(C(7)H(4)IO(2))(4)(H(2)O)(2)], the two Cu(II) ions [Cu⋯Cu = 2.6009 (5) Å] are bridged by four 2-iodo-benzoate (IB) ligands. The four nearest O atoms around each Cu(II) ion form a distorted square-planar arrangement, the distorted square-pyramidal coordination being completed by the O atom of the water mol-ecule at a distance of 2.1525 (16) Å. The dihedral angle between the benzene ring and the carboxyl-ate group is 25.67 (13)° in one of the independent IB ligands and 6.44 (11)° in the other. The benzene rings of the two independent IB ligands are oriented at a dihedral angle of 86.61 (7)°. In the crystal, O-H⋯O inter-actions link the mol-ecules into a two-dimensional network. π-π contacts between the benzene rings [centroid-centroid distances = 3.810 (2) and 3.838 (2) Å] may further stabilize the structure.
在中心对称的双核标题配合物[Cu₂(C₇H₄IO₂)₄(H₂O)₂]中，两个铜(II)离子[Cu⋯Cu = 2.6009 (5) Å]由四个2-碘苯甲酸根(IB)配体桥连。每个铜(II)离子周围的四个最近邻氧原子形成扭曲的平面正方形排列，扭曲的四方锥配位由距离为2.1525 (16) Å的水分子的氧原子完成。在其中一个独立的IB配体中，苯环与羧酸根之间的二面角为25.67 (13)°，在另一个中为6.44 (11)°。两个独立的IB配体的苯环以86.61 (7)°的二面角取向。在晶体中，O-H⋯O相互作用将分子连接成二维网络。苯环之间的π-π接触[质心-质心距离 = 3.810 (2) 和3.838 (2) Å]可能进一步稳定该结构。
