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1、第23卷湖北師范學院學報(自然科學版)Vol123第1期JournalofHubeiNormalUniversity(NaturalScience)No11,2003Anovelfluorometricsensorforsodiumionbasedoncontaininganthraquinonecalix[4]arenederivativeLVJian2quan1,2,HEXi2wen2,LIWen2you2(1.DepartmentofChemistryandEnvironmentalEngineering,HubeiNormalUniversity,H
2、uangshi435002,China;2.DepartmentofChemistry,NankaiUniversity,Tinjin300071,China)Abstract:Anewtypeoffluorescencecalix[4]arenederivativehavingfouranthraquinoneazogroupsontheupperrimhasbeensynthesized.Themostfavorablesensoris5,11,17,232tetrakis[(12anthraquinone)azo]225,26,27,282tetrah
3、ydroxycalix[4]arene.Thecomplexesofthederivativewithalkalimetalionsshowthatthedesignedderivativehasfluorescentquenchingforselectivesodium(I),soitissuccessfullyappliedtorecognizesodiumionbyfluorometricmethod.Thestoichiometryandstabilityconstantarecalculated.Aquantitativebasisintheran
4、geof2.0×10-6molL-1～4.0×10-5molL-1forthedeterminationofNa+isthelinearrelationships,F0/F=(0.964±0.002)+(3.13±0.009)×104[Na+](R=0.9957),△F=(F0-F)=(1.484±0.7)+(1.61±0.005)×105[Na+](R=0.9957).Thelimitsofdetection(LOD)arecalculatedtobe3.5×10-7molL-1,4.7×10-7molL-1respectively.Keywords:ca
5、lix[4]arenederivative;anthraquinone;sodiumion;fluorescenceCalixarenes,whichappearedaftercrownethersandcyclodetrinsasthethirdgenerationofsupramolecularcompounds,aremacrocyclicphenol2formaldehydecondensationproducts[1].Theyarenotedfortheirabilitytoformhost2guestcomplexesbytrappingion
6、sandorganiccompoundsintheircavi2tiesaswellastomimicenzymefunctions.Becauseofthegreatadvantageofcalixareneinrespectoffacilesynthesisandversatilemolecularstructuresincomparisontocrownethersandcyclodetrins,calixareneshavebeenshowntobeusefulbuildingblocksinthedesignofopticalsensorsford
7、etectingionsandorganicspecies,avarietyofnewfunctionlizedhostmoleculeshavebeenpreparedandemployedsuccessfullyinmanyfields.Inrecentyears,increasingattentionhasbeenpaidtothederivativesthatchangefluores2cenceinresponsetoachangeintheirenvironment,andanumberofdetectorstakingadvantageofth
8、egreatsensitivityfluoresce
