摘要
An organic ligand and its Cu（II） complex formulated as （C13HloN203）·5H2O （H2L·5H2O, 1） and Cu（HL）2（phen）·0.125H2O （2, H2L = 4-carboxyl-4′-hydroxy azobenzene, phen = 1,10-phenanthroline） have been synthesized and structurally characterized by single-crystal X-ray diffraction. In the two compounds, H2L and HL exhibit a trans-conformation. Complex 2 shows a mononuclear Cu（Ⅱ） structure with the hydroxyl group of HL uncoordinated. Complex 2 is assembled into a three-dimensional （3D） supramolecular architecture by hydrogen bonds and π-π stacking interactions. H2L and compound 2 can detect NO2 via reversible and irreversible color changes, respectively. The mechanism for the color changes is investigated.
An organic ligand and its Cu（II） complex formulated as （C13HloN203）·5H2O （H2L·5H2O, 1） and Cu（HL）2（phen）·0.125H2O （2, H2L = 4-carboxyl-4′-hydroxy azobenzene, phen = 1,10-phenanthroline） have been synthesized and structurally characterized by single-crystal X-ray diffraction. In the two compounds, H2L and HL exhibit a trans-conformation. Complex 2 shows a mononuclear Cu（Ⅱ） structure with the hydroxyl group of HL uncoordinated. Complex 2 is assembled into a three-dimensional （3D） supramolecular architecture by hydrogen bonds and π-π stacking interactions. H2L and compound 2 can detect NO2 via reversible and irreversible color changes, respectively. The mechanism for the color changes is investigated.
基金
Supported by Chongqing Postdoctoral Science Foundation (No. XM2012002)
