Guo Ming-Lin
School of Environment and Chemical Engineering and Key Laboratory of Hollow Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300160, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Dec 4;67(Pt 1):m21-2. doi: 10.1107/S1600536810049792.
In the title complex, Cu(C(8)H(3)NO(6))(H(2)O)(2), the two carboxyl-ate groups of the 4-nitro-phthalate dianion ligands have monodentate and 1,3-bridging bonding modes, respectively. The Cu atom shows an approximate square-pyramidal coordination as it is bonded to O atoms from the carboxyl-ate groups of three 4-nitro-phthalate ligands and two O atoms of the non-equivalent coordinated water mol-ecules. Other Cu atoms in the coordination polymer are connected into a two-dimensional layer in the ab plane. The layers are aggregated to a three-dimensional structure through inter-layer hydrogen bonding involving an O atom of a nitro group. The whole three-dimensional structure is further maintained and stabilized by intra-layer hydrogen bonds between the O atoms of the carboxyl-ate groups and the coordinated water mol-ecules.
在标题配合物[Cu(C₈H₃NO₆)(H₂O)₂]ₙ中，4-硝基邻苯二甲酸二价阴离子配体的两个羧酸根基团分别具有单齿和1,3-桥连键合模式。铜原子呈现出近似的四方锥配位，因为它与三个4-硝基邻苯二甲酸配体的羧酸根基团中的氧原子以及两个不等价配位水分子的氧原子相连。配位聚合物中的其他铜原子在ab平面上连接成二维层。这些层通过涉及硝基氧原子的层间氢键聚集形成三维结构。整个三维结构通过羧酸根基团的氧原子与配位水分子之间的层内氢键进一步维持和稳定。
