研究目的
Investigating the assembly of two topologically different 3D CuII metal–organic frameworks from the same ligands by controlling reaction conditions.
研究成果
Two 3D CuII MOFs with different topologies were successfully assembled by tuning reaction conditions. MOF (1) exhibits high water and chemical stability, while MOF (2) is a microporous material. This work demonstrates the importance of reaction conditions in synthesizing topologically different MOFs from the same ligands.
研究不足
The very small porosity in MOF (1) and the poor water stability of MOF (2) limit their potential for further exploration for gas adsorption and proton conduction, respectively.
1：Experimental Design and Method Selection
Hydrothermal reactions were used to synthesize the MOFs by controlling temperature, reaction time, and solvent system.
2：Sample Selection and Data Sources
Cu(NO3)2·3H2O, H4L, and 4,40-bpy were used as starting materials. Single-crystal X-ray diffraction was used for structural characterization.
3：List of Experimental Equipment and Materials
Thermo Finnigan Flash 1112A elemental analyser, Bruker Vector 22 FT–IR spectrophotometer, NETZSCH STA 449C thermal analyser, Bruker D8 Advance diffractometer, Micromeritics 3Flex automated micropore gas analyser.
4：Experimental Procedures and Operational Workflow
MOF (1) was synthesized at 160°C for 72 h in water, while MOF (2) was synthesized at 90°C for 48 h in DMA/H2O. Characterization included IR spectroscopy, PXRD, TGA, and gas sorption experiments.
5：Data Analysis Methods
Structural analysis was performed using TOPOS software. Proton conductivity and CO2 adsorption were analyzed using impedance method and gas sorption isotherms, respectively.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
