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1、Monopyrrolo-tetrathiafulvalenebasedlow-molecular-massorganogelwithmultistimuli-responsiveproperties#51015202530LiuYucun,ZhengNingjuan,YinBingzhu**(DepartmentofChemistry,CollegeofScience,KeyLaboratoryofNaturalResourcesofChangbaiMountain&FunctionalMolecules,YanbianUniversit
2、y,MinistryofEducation,Yanji,Jilin133002,)Abstract:Anewmonopyrrolo-tetrathiafulvalene(monopyrrolo-TTF)basedlowmolecular-massorganicgelators(LMOGs)wassynthesizedandcharacterized.Thegelatorcouldformatransparentorganogelincyclohexane,whileitwassolubleinaromatic,haloalkanes,THF,
3、DMF,ethylacetate,etc.whencooledafterheating.Andthegelhasbeenthoroughlycharacterizedbyusingvariousmicroscopictechniquesincludingfield-emissionscanningelectronmicroscopy(FE-SEM),Small-angleX-rayscattering(SAXS),UV-visibleandFourierTransformInfraredSpectroscopy(FT-IR).Also,the
4、gelatorreactedwithtetracyano-p-quinodimethane(TCNQ)toformthecharge-transfer(CT)complexbinaryorganogelincyclohexane.Experimentsresultsindicatedthatthemoleculesarrangementinone-andtwo-componentswererectangularandhexagonalcolumnarstructure,whichfurtherstackedintomicroporousand
5、fibernetworks,respectively.Interestingly,thegel-soltransitioncouldbereversiblytunedbychemicalredoxreaction,andtrifluoro-aceticacidstimulationcouldalsoinducegel-soltransition,butitwasirreversiblebyadditionoftriethylamineevenheatedorsonication.Therefore,themulti-responsivepro
6、pertiesendowedthegeltobeafavourablecandidateforpotentialfunctionalmaterials.Keywords:organogelator;charge-transfer;chemicalredox;gel-soltransition0IntroductionOrganicmolecularself-assemblythroughvariousnoncovalentinteractions,suchasH-bonding,π-πstacking,vanderWaals,hydropho
7、bicinteractions,donor-acceptorinteractions,andsoforth,isapowerfulapproachthatisusedtomakenewsupramolecularsoftmaterials.Low-molecular-massorganogelators(LMOGs)[1]arecapableofentrappingalargeamountoforganicsolventtoformthree-dimensionalself-assembledfibrillarnetworks(SAFINs)
8、,andhavevariouspotentialapplicationsinmolecularelectronicdevices,[2]light-harvesti
