A Novel TADDOL-based Chiral Metal-organic Framework: Synthesis, Structure and Photoluminescence Study
王秀仁;李子建;巩伟;刘燕;刘百战;崔勇
a (School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China)
b (China Tobacco, Shanghai 200240, China)
A Novel TADDOL-based Chiral Metal-organic Framework: Synthesis, Structure and Photoluminescence Study
WANG Xiu-Ren;LI Zi-Jian;GONG Wei;LIU Yan;LIU Bai-Zhan;CUI Yong
a (School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China)
b (China Tobacco, Shanghai 200240, China)
A new C2-symmetric TADDOL-based ligand H4L was designed and synthesized from readily available tartaric acid and was used to construct a novel TADDOL-based chiral metal-organic framework {[Co2L(DMA)(H2O)5]•2DMA}n 1 (DMA = N,N΄-dimethylacetamide). It was characterized by single-crystal and powder X-ray diffraction, Fourier-transform infrared spectra (FTIR), solid-state circular dichroism (CD) and thermal gravimetric analysis (TGA). 1 crystallizes in the chiral orthorhombic space group P212121 with a = 9.7060(8), b = 15.5661(1), c = 44.564(3) Å, V = 6732.9(9) Å3, Z = 4, Mr = 1394.08, Dc = 1.375 g/cm3, F(000) = 2888, GOOF = 1.032, the final R = 0.0607 and wR = 0.1582 for 21374 observed reflections with I > 2σ(I). Each Co2 cluster in 1 is linked by three ligands and each ligand is coordinated to three Co2 clusters with one free carboxylate group, thus generating a 2D network. These 2D networks are further extended into a 3D supramolecule framework by the hydrogen bonding interactions (O–H…O) in an A-B-A-B stacking mode. Additionally, the photoluminescence of 1 and H4L were also investigated.
A new C2-symmetric TADDOL-based ligand H4L was designed and synthesized from readily available tartaric acid and was used to construct a novel TADDOL-based chiral metal-organic framework {[Co2L(DMA)(H2O)5]•2DMA}n 1 (DMA = N,N΄-dimethylacetamide). It was characterized by single-crystal and powder X-ray diffraction, Fourier-transform infrared spectra (FTIR), solid-state circular dichroism (CD) and thermal gravimetric analysis (TGA). 1 crystallizes in the chiral orthorhombic space group P212121 with a = 9.7060(8), b = 15.5661(1), c = 44.564(3) Å, V = 6732.9(9) Å3, Z = 4, Mr = 1394.08, Dc = 1.375 g/cm3, F(000) = 2888, GOOF = 1.032, the final R = 0.0607 and wR = 0.1582 for 21374 observed reflections with I > 2σ(I). Each Co2 cluster in 1 is linked by three ligands and each ligand is coordinated to three Co2 clusters with one free carboxylate group, thus generating a 2D network. These 2D networks are further extended into a 3D supramolecule framework by the hydrogen bonding interactions (O–H…O) in an A-B-A-B stacking mode. Additionally, the photoluminescence of 1 and H4L were also investigated.
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