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1、大連理工大學(xué)博士學(xué)位論文萘酰亞胺和羅丹明類新功能性熒光染料的研究姓名:付梅艷申請(qǐng)學(xué)位級(jí)別:博士專業(yè):精細(xì)化工指導(dǎo)教師:肖義20090601萘酰亞胺和羅丹明類新功能性熒光染料的研究其HOMO能級(jí),特殊的6棗-兀掌共軛作用降低了其LUMO能級(jí),二者的協(xié)同作用大大減小了能隙能量,使吸收和熒光光譜明顯紅移。關(guān)鍵詞:萘酰亞胺;探針;硅雜羅丹明;長(zhǎng)波長(zhǎng)熒光染料;大連理工大學(xué)博士學(xué)位論文TheResearchonNewFunctionalFluorescentDyesBasedonNaphthalimdesandRhodami
2、nesAbstractThenaphthalimidesandrhodamineshavehadgreatattentionbecauseoftheirgoodphotochemicalandphotophysicalproperties.Naphthalimideshadlargepotentialapplicationmarketinvariousfields,80itwasachanceandachallengeforUStodevelopmorefunctionalderivativesofnaphtha
3、limidewitllbetterproperties.Sincetheextentisivelyappilicationofrhodaminesinbioliogicalenvironment,itWasnecessaryandurgenttodevelopmorekindsofsuchlongwavelengthrhodaminederivativestomeettheincreasingdemands.Inthiswork,threekindsoffluorescentsensorsbasedonnapht
4、halimdesandonekindofsilicon-substitutedrhodaminedyes、7lritlllongabsorptionandemissionwavelengthhadbeensynthsized.1.ThenewPETfluorescentprotonsponges.A1.A2andA3hadsynthesizedbasedonnaphthalimides.D^嗄A卜iWasprovedagoodprotonreceptorunittodevelopsensitivefluoresc
5、entswitchestriggeredbylower-concentrationproton.A3exhibitedsignificantfluorescenceenhancementuponprotonationinhighpH(pH=12.9)aqueoussolutions,thepKaofwhichwas11.ThelowestdetectionconcentritionWas1.25xl0以’mol/L.2.Basedontheapproachofswitchingo行FRETbywreckingth
6、eacceptorpart,cassette-typesensors(SN-1,SN一2andSN-3)forfluorideanioncontainingnaphthalimideandsquaraineunitshasbeendeveloped.Thesesensorsshowsensitiveresponsetofluorideanionthroughbothnaked·eyedetectablecolourchangesandratiometricfluorescencechanges.,nledetec
7、tionprocesswasrealizedbythecombinationofthereactiverecognitionandFRETmechanism.SN-2andSN.3showedexcellentratiometricfluorescencechangeswhichmadethequantitivemeasurementtobeavaliable.ThedetectionlimitandequilibriumconcentrionofF。forSN一2Was2洲and1.2mMwithshortre
8、actiontime(3min).ThedetectionlimitandequilibriumconcentrionofF‘forSN-3Was1IxMand50州謝tllthereactiontimeabout30min.3.TwochiralfluorephoresNNHandNNMhadbeensynthesizedbyintroducingthechiralce