A microporous and robust bimetal-organic framework[Cd_(2)Ba(NH_(2)-BTB)_(2)]·2(DMA)·2(H_(2)O)(1)was constructed by mixing the heterometallic nodes and an tridentate carboxyl ligand with amino group,benefitin...A microporous and robust bimetal-organic framework[Cd_(2)Ba(NH_(2)-BTB)_(2)]·2(DMA)·2(H_(2)O)(1)was constructed by mixing the heterometallic nodes and an tridentate carboxyl ligand with amino group,benefiting from the synergistic effect of active sites,exposed amino groups and ultramicroporous structure.This compound displays an extraordinary selectivity of CO_(2)/CH4 and C_(2)H_(2)/CH_(4)(16.7 and 146.3)at 298 K and 1 atm,which can exceed those of many reported MOFs under the same conditions.This work provides an important model to design metal-organic frameworks for the adsorption and separation of small gas molecules.展开更多
A novel heterometallic-organic framework（HMOF）, namely [ZnBa（1,3-BDC）2（DMA）2],（I）（DMA=N,N- dimethylacetamide）, was synthesized by means of solvothermal method from isophthalic acid（1,3-BDC） ligand and rele...A novel heterometallic-organic framework（HMOF）, namely [ZnBa（1,3-BDC）2（DMA）2],（I）（DMA=N,N- dimethylacetamide）, was synthesized by means of solvothermal method from isophthalic acid（1,3-BDC） ligand and relevant metal salts as raw materials. The single-crystal X-ray diffraction analysis result demonstrates that compound 1 is a three-dimensional（3D） framework including heterometallic tetranuclear [Zn2Ba2（COO）s] clusters as building subunits, which could be simplified into an eight-connected body-centered cubic（bcu） topological net. At room tem- perature, compound l displays strong blue luminescence in solid state. Furthermore, the quantum yield and lumines- cent lifetime of compound 1 were also measured.展开更多
基金supported financially by National Natural Science Foundation of China (No. U1904183)Science Foundation for Excellent Youth Scholars of Henan (212300410061, 20HASTIT006)
文摘A microporous and robust bimetal-organic framework[Cd_(2)Ba(NH_(2)-BTB)_(2)]·2(DMA)·2(H_(2)O)(1)was constructed by mixing the heterometallic nodes and an tridentate carboxyl ligand with amino group,benefiting from the synergistic effect of active sites,exposed amino groups and ultramicroporous structure.This compound displays an extraordinary selectivity of CO_(2)/CH4 and C_(2)H_(2)/CH_(4)(16.7 and 146.3)at 298 K and 1 atm,which can exceed those of many reported MOFs under the same conditions.This work provides an important model to design metal-organic frameworks for the adsorption and separation of small gas molecules.
基金Supported by the National Natural Science Foundation of China（Nos.21405006, 21301009） and the Key Scientific Research Projects in Colleges and Universities in Henan Province, China（No. 15A150031）.
文摘A novel heterometallic-organic framework（HMOF）, namely [ZnBa（1,3-BDC）2（DMA）2],（I）（DMA=N,N- dimethylacetamide）, was synthesized by means of solvothermal method from isophthalic acid（1,3-BDC） ligand and relevant metal salts as raw materials. The single-crystal X-ray diffraction analysis result demonstrates that compound 1 is a three-dimensional（3D） framework including heterometallic tetranuclear [Zn2Ba2（COO）s] clusters as building subunits, which could be simplified into an eight-connected body-centered cubic（bcu） topological net. At room tem- perature, compound l displays strong blue luminescence in solid state. Furthermore, the quantum yield and lumines- cent lifetime of compound 1 were also measured.
