β-環(huán)糊精及其橋式雙環(huán)糊精對幾種客體分子的鍵合模式和鍵合行為.pdf

1、南開大學碩士研究生畢業(yè)(學位)論文姓名：年級：專業(yè)：研究方向：論文題目：完成日期：導師：鐘瑞琴二零零二級物理化學超分子化學p一環(huán)糊精及其橋式雙環(huán)糊精對幾種客體分子的鍵合模式和鍵合行為二零零五年四月劉育教授二零零五年四月采鐾g考：暑弗霹意勿壘文公磕”ABSTRACTMolecularrecognitionandassemblyinvestigationshaveattractedextensiveattentioninsupramolec

2、ularchemistryPossessingtherigidhydrophobiccavityandhydrophilicoutside，thenaturalcyclodextrins(CDs)andtheirderivativesCanformhost—guestorsupramolecularcomplexeswithawidevarietyoforganic，inorganic，andbiologicalguestmolecul

3、es，whichhavebeenappliedtovariousfieldsofscienceandtechnologyasanexcellentmolecularreceptormadmodelsystemmimickingthesubstratespecificinteractionofenzymesPossessingtwohydrophobiccavitiesandfunctionaltethergroup，bridgedbis

4、(pcyclodextrin)CangreatlyenhancetheoriginalbindingabilityandselectivityofparentcyclodextrinthroughthecooperativebindingoftwocloselylocatedcyclodextrincavitiesaswellasthetethergroupwithmodelsubstrateTherefore，bridgedbis(p

5、—cyclodextrin)chemistryisacurrentlysignificanttopicinsupramolecularchemistryInthisthesissomemodemmeasuringtechniqueswereperformedtoexaminetheirmolecularrecognitionabilityThemajorcontentsareasfollows：Aninclusioncomplexof[

6、3cyclodextrinandferrocenewithunique4：5inclusionratiowaspreparedanditscrystalwasdeterminedbyX—raycrystallographicanalysisThepropertiesoftheinclusioncomplexinthesolidstateandaqueoussolutionhavebeenfurtherinvestigatedAbridg

7、edbis(1Bcyclodextrn)withEDTAderivativespacerhasbeensynthesizedandcharacterizedbyInassspectra，UVNMRThebindingconstantsofhostcompoundswithsomeorganicdyesweredeterminedbyspectrofluorometrictitrationsTheinfluenceofhost’guest