Synthesis And Application Of Organogel Materials Based On Ferrocene

Low-molecule organogels are self-assembled by low molecular weight gelling factors（LMWGs）through weak intermolecular interactions（hydrogen bonding,π-πstacking,van der Waals forces,and hydrophobic interactions,etc.）（ultrasound,light,electricity,p H,mechanical force and ions,etc.）fast-response smart materials.Therefore,these advantages make low-molecule organogels widely used in biocatalysis,chemical sensors,drug delivery,etc.In this paper,organic low-molecule gels based on ferrocene groups were designed to expect excellent material properties.（1）The research progress of organic low molecule gels is briefly described,the influence of the driving force of the self-assembly of organic low molecule gels on gelation is introduced in detail,and the stimuli-responsive and ferrocene framework-based small molecule gels are also introduced.research progress.（2）Synthesis of three novel ferrocenyl chalcone-based organogelling factors X_1-3,which can form gels in a variety of alcoholic solvents and have good thermal stability,among which X_1-3-tert-butanol The T_gelsin the tert-butanol gel system were55.2℃,55℃and 60.5℃,respectively.Through XRD,FT-IR,SEM and contact angle analysis tests,it is deduced that the driving force of gelation mainly comes from hydrogen bonding,π-πinteraction,van der waals force and hydrophobic interaction.The stimuli-responsive studies of gelling factors were studied,and the results showed that they could produce stimuli-responsiveness to electrochemical,chemical oxidation,and hydrazine species.The morphology observation under the electron microscope shows that the gel is stacked in the form of crystalline fiber sheet structure with large porosity,so it can be applied to the adsorption of dyes.（3）Based on gel factor X_1-3,three new ferrocenyl chalcone gel factor Y_1-3were designed and synthesized.Gel factor Y_1-3can not only form gel in tert-butanol,isopropanol,DMSO and other solvents,but also have gelation behavior in kerosene,gasoline and diesel.Gel-forming gels in kerosene（CGC=9.12%,8.45%,8.12%）,the self-organization of gelling factors in kerosene was studied.The driving force is shown as follows:π-πinteraction between molecules,hydrogen bonding and van der Waals force of long-chain alkyl groups.Gel factor also has multiple stimuli responsiveness to the outside world.What is exciting is that Gel factor Y₂can also efficiently identify oil adulteration and can effectively recover oil spills.（4）A novel ferrocenyl pyrazoline gel factor Z was synthesized by ring-closure reaction based on gel factor Y_1-3.Gel Z can form stable gels in acetonitrile,cyclohexanol,tert-butanol.The effect of solvent on gelation was investigated by the Tea-solvent parameter model.Through the study of UV-fluorescence spectroscopy,the compound can specifically recognize the metal ion Cu²⁺in buffer(V_THF/V_{deionized water}=9:1),and can reach the naked eye recognition.Through density functional theory calculations,the complex coordination mechanism of the gel factor to identify Cu²⁺was expounded.Gel factor Z has good biological activity in BHK-21 cells,which has certain application value in the field of biomedicine in the future.