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 shu

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

CUI Jie-Hu ^a,b,, ,
DU Xiu-Hongc ^c

a.
a. College of Civil Engineering and Architecture, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China;
b.
b. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China;
c.
c. Clinical Laboratory Medicine, Henan Medical College, Zhengzhou 451191, China

Corresponding author: CUI Jie-Hu,
Received Date: 8 April 2015
Available Online: 20 June 2015
Fund Project:

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, M_r=1268.11, Z=1, F(000)=628, D_c=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 TCOPM^3- and bpe as mixed bridge ligands. Fluorescence spectrum measurement indicates that MOF 1 shows strong fluorescence emission at 437 nm (λ_max) in the solid state at room temperature and realizes tunable emission spectrum through tuning from single to mixed ligand.
- TCOPM,
- bpe,
- fluorescence,
- MOF
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