A lead(II) coordination polymer containing 2-carboxycinnamic acid and 1,10-phenanthroline and its 3-D supramolecular network

作者：Lei, Zhi-Hong; Cha, Yu-E; Li, Xia^*; Zhao, Kai

来源：Journal of Coordination Chemistry, 2012, 65(9): 1592-1599.

DOI：10.1080/00958972.2012.676167

• Lead coordination polymer
• 2-Carboxycinnamic acid
• Crystal structure

The coordination polymer {[Pb(cca)(phen)]H2O}(n) (H(2)cca = 2-carboxycinnamic acid and phen = 1,10-phenanthroline) was synthesized by hydrothermal reaction and structurally characterized by single-crystal X-ray diffraction. The complex possesses a 1-D chain structure composed of infinite Pb-cca-Pb linkages, in which the [PbO4N2] subunits are linked by bridging cca in bis(chelating-bridging) coordination mode. The coordination around the lead(II) is hemidirected and weak Pb center dot center dot center dot O interactions are observed that result in a double-chain structure. The chains are combined to generate a 3-D supramolecular structure through interchain C-H center dot center dot center dot pi, C-H center dot center dot center dot O, and pi center dot center dot center dot pi stacking interactions. Fluorescence of the complex originates from pi*-pi transitions of the ligand.

• 出版日期2012
• 单位首都师范大学