摘要
A new MOF {[Cd3（TCOPM）2bpe]·7（H2O）·2DMF}n based on a C-centered tripodal flexible carboxylate ligand and 1,2-bis（4-pyridyl）ethane ligand （HaTCOPM = tris（p-carboxy- phenyl）methane, bpe = 1,2-bis（4-pyridyl） ethane） has been synthesized by the hydrothermal reaction in mixed DMF/H2O solution under 95 ℃. The structure has been determined by single-crystal X-ray diffraction analysis and elemental analysis, IR spectroscopy, and thermogravimetric analysis. Crystal data for the title complex are as follows： triclinic system, space group P/with a = 9.2637（14）, b = 13.273（2）, c = 14.160（2） A, a = 9.2637（14）, β = 13.273（2）, γ, = 105.585（2）°, V= 1487.6（4） A3, Mr= 1268.11, Z = 1, F（000） = 628, Dc = 1.416 g/cm3,μ（MoKa） = 1.110 mm^-1, R = 0.0482 and wR = 0.1444 for 5207 observed reflections with I 〉 2σ（I）. MOF 1 consists of an infinite 3D network using TCOPM^3- and bpe as mixed bridge ligands. Fluorescence spectrum measurement indicates that MOF 1 shows strong fluorescence emission at 437 nm （λmax） in the solid state at room temperature and realizes tunable emission spectrum through tuning from single to mixed ligand.
A new MOF {[Cd3（TCOPM）2bpe]·7（H2O）·2DMF}n based on a C-centered tripodal flexible carboxylate ligand and 1,2-bis（4-pyridyl）ethane ligand （HaTCOPM = tris（p-carboxy- phenyl）methane, bpe = 1,2-bis（4-pyridyl） ethane） has been synthesized by the hydrothermal reaction in mixed DMF/H2O solution under 95 ℃. The structure has been determined by single-crystal X-ray diffraction analysis and elemental analysis, IR spectroscopy, and thermogravimetric analysis. Crystal data for the title complex are as follows： triclinic system, space group P/with a = 9.2637（14）, b = 13.273（2）, c = 14.160（2） A, a = 9.2637（14）, β = 13.273（2）, γ, = 105.585（2）°, V= 1487.6（4） A3, Mr= 1268.11, Z = 1, F（000） = 628, Dc = 1.416 g/cm3,μ（MoKa） = 1.110 mm^-1, R = 0.0482 and wR = 0.1444 for 5207 observed reflections with I 〉 2σ（I）. MOF 1 consists of an infinite 3D network using TCOPM^3- and bpe as mixed bridge ligands. Fluorescence spectrum measurement indicates that MOF 1 shows strong fluorescence emission at 437 nm （λmax） in the solid state at room temperature and realizes tunable emission spectrum through tuning from single to mixed ligand.
基金
Financially supported by the State Key Laboratory of Coordination Chemistry of Nanjing University
