研究目的
Investigating the visible-light driven rotation of an overcrowded-alkene based molecular motor strut in a dual-function metal-organic framework (MOF) enabled by energy transfer.
研究成果
The visible-light driven rotation of a molecular motor in a metal-organic framework, opens many perspectives for future applications such as membranes and pumps able to accelerate flow of gases or in combination with catalytic function, miniaturized chemical reactors able to accelerate inflow of reactants and outflow of products, powered by non-invasive visible light.
研究不足
The use of UV light to drive the molecular motion limits such efforts, due to the limited penetration depth and potential damage by destructive photochemical processes.
1：Experimental Design and Method Selection:
The framework was constructed from two functional linkers: a palladium-porphyrin photosensitizer and a bispyridine derived molecular motor. The molecular motor was introduced in the framework using the post synthetic solvent assisted linker exchange (SALE) method.
2：Sample Selection and Data Sources:
The structure of the material was confirmed by powder (PXRD) and single crystal X-ray (SC-XRD) diffraction.
3：List of Experimental Equipment and Materials:
Palladium-porphyrin photosensitizer, bispyridine derived molecular motor, Zn(NO3)2·6H2O, tetrafluoroboric acid, DMF/EtOH solvent mixture.
4：Experimental Procedures and Operational Workflow:
The parent MOF was synthesized in a solvothermal reaction. The molecular motor was introduced using SALE. The rotary motion was monitored using near infrared Raman spectroscopy.
5：Data Analysis Methods:
The phosphorescence lifetime and intensity of the porphyrin in the MOFs were analyzed to confirm efficient energy transfer.
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