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1、ChineseJournalofChemistry,2006,24,463—467FullPaperSynthesis,PhotochromicKinetics,FluorescenceandStructureofaNew1,2-DiarylcyclopentenePU,Shou-Zhi*(蒲守智)XIAO,Qiang(肖强)XU,Jing-Kun(徐景坤)SHEN,Liang(申亮)LI,Gui-Zhen(李贵珍)CHEN,Bing(陈兵)JiangxiKeyLaboratoryofOrganicChemistry,JiangxiScienceandTec
2、hnologyNormalUniversity,Nanchang330013,ChinaThephotochromicdiarylethene,1,2-bis[2-methyl-5-(3-trifluoromethylphenyl)-3-thienyl]perfluorocyclopentene(BMTTP),wassynthesizedanditsphotochromickinetics,fluorescenceandX-raystructurewereinvestigated.Thiscompoundunderwentaphotochromicreact
3、ionbothinsolutionandthesinglecrystallinephase.Itscycliza-tion/cycloreversionprocesswasdeterminedtobezeroth/firstorderreaction,respectively,andthisisthefirstreportonthecyclization/cycloreversionreactionorder.Inaddition,itsfluorescencepropertywasalsodiscussed.Keywordsphotochromism,di
4、arylethene,kinetics,fluorescence,X-raystructureIntroductionorientedinonefixedconformationdependingonthe17recrystallizationconditions.Thus,anti-parallelcon-Photochromicdiarylethenecompoundshavebeenformationdiarylethenecrystalshaveverypromisingknownasthemostpromisingphotochromiccandi
5、dates1-4practicalapplications.forvariousoptoelectronicapplications,suchasopti-56,78,9Sofar,kineticsoftheringopeningandclosurereac-calmemory,photo-opticalswitching,displayand10,11tionsforsomediarylethenederivativeshasbeenstudiednonlinearopticsbecauseoftheirgoodthermalsta-19byfemtose
6、condtime-resolvedtechnique.However,bilityinbothopenringandclosedringisomers,re-thephotochromicreactionordersoftheringopeningmarkablefatigueresistantcharacter,highsensitivityandandclosurereactionsfordiaryletheneshavenotbeenrapidresponse.reportedyet.Inthispaper,anewdithienylethenecom
7、-Diarylethenecrystalsbelongtoauniqueclassofpound,1,2-bis[2-methyl-5-(3-trifluoromethylphenyl)-3-photochromiccrystals,whichexhibitthermallystable2,12,13thienyl]perfluorocyclopentene(BMTTP),wassynthe-andfatigue-resistantphotochromicperformance.sized.Tothebestofourknowledge,thephotoch
8、romicThecolorlesssinglecry
