Citation:
CUI Jie-Hu, DU Xiu-Hongc. A New Three-dimensional Cd Metal-organic Framework Based on a C-centered Tripodal Flexible Carboxylate and 1,2-Bis(4-pyridyl)ethane Mixed Ligands[J]. Chinese Journal of Structural Chemistry,
2015, 34(12): 1915-1921.
doi:
10.14102/j.cnki.0254-5861.2011-0753
A New Three-dimensional Cd Metal-organic Framework Based on a C-centered Tripodal Flexible Carboxylate and 1,2-Bis(4-pyridyl)ethane Mixed Ligands
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 (H3TCOPM=tris(p-carboxyphenyl) 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 P1 with a=9.2637(14), b=13.273(2), c=14.160(2) Å, α=9.2637(14), β=13.273(2), γ=105.585(2)°, V=1487.6(4) Å3, Mr=1268.11, Z=1, F(000)=628, Dc=1.416 g/cm3, μ(MoKα)=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 TCOPM3- 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.
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关键词:
- TCOPM
- / bpe
- / fluorescence
- / MOF
English
A New Three-dimensional Cd Metal-organic Framework Based on a C-centered Tripodal Flexible Carboxylate and 1,2-Bis(4-pyridyl)ethane Mixed Ligands
Abstract:
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 (H3TCOPM=tris(p-carboxyphenyl) 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 P1 with a=9.2637(14), b=13.273(2), c=14.160(2) Å, α=9.2637(14), β=13.273(2), γ=105.585(2)°, V=1487.6(4) Å3, Mr=1268.11, Z=1, F(000)=628, Dc=1.416 g/cm3, μ(MoKα)=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 TCOPM3- 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.
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Key words:
- TCOPM
- / bpe
- / fluorescence
- / MOF
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