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1 INTRODUCTIONThemaintargetinmacrocyclicdesignistosynthesizemacrocycleswhichareabletodiscriminateamongthedifferentmetalcations.Manyfactorsinfluencingtheselectivitiesofmacrocyclesforcationshavebeendeterminedsuchassubstituenteffect,donoratomictypesand… 相似文献
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DENG Dao Lia * ZHANG Yan Hui a DAI Cong Yun a ZENG Hong a YAN Zhi Qing a YE Chang Qing a Ronald Ha |Ge ba 《结构化学》2000,(1)
1 INTRODUCTIONThesaturatedmacrocyclestriazacyclononane(〔9〕aneN3)and1,4,7-trimethyl-1,4,7-triazacyclononane(Me3〔9〕aneN3)aremembersofafamilyofpotentiallytri-dentatemacrocyclicligandswhichformthermodynamicallyandkineticallystablecomplexeswithheaviermain… 相似文献
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Horseradishperoxidase(HRP)canstronglycatalyzethereactionofH2O2oxidizingophenylenediamine(OPD),thechromaticproductofwhichcanbedetectedinenzymelinkedimmunosorbentassay(ELISA)withspectrophotometry[1].Involtammetricenzymelinkedimmunoassay[2—4],OPDH2O2HRPsystemhasf… 相似文献
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1 INTRODUCTIONDithioacetals[1 3]havedemonstratedtheirpotentialforthesynthesisofheterocy cles,therefore ,theirsynthesisandreactionshaveattractedmuchattention ,butverylittlehasbeenreportedabouttheoxidationofdithioacetals[4].Accordingtotheprevi ousreport,theoxid… 相似文献
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1 INTRODUCTIONThecondensationofaldehydeswithaminesisavaluablesyntheticmethodleadingtopolyazapolycyclics,includingcagedcompounds.Animportantapplicationofthisreactionisthesynthesisofhexabenzylhexaazaisowurtzitane(HBIW)anditsderivativeswithsubstitutedbenz… 相似文献
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1INTRODUCTIONSincebiologicalandphamacologicalactivitieshavebeenwel knownfornumerousheterocyclicaromatictricyclesinrecentyears... 相似文献
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1 INTRODUCTIONTheα ,α ,α′,α′ tetraaryl 1 ,3 dioxolane 4,5 dimethanols (TADDOLS)diolswhicharereadilyavailablefromalkyltartrates ,havebeenwidelyusedaschiralligandsinenantioselectiveadditionreactionsofcarbon centerednucleophilestoaldehy des[1 ] ,in [2 +2 ]cycloadditions[2 ] … 相似文献
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IntroductionElectrontransfer (ET)reactionsarefoundtobeanelementalstepinmanybiologicalprocessesindeed .1 6IthasbeenbelievedthattheexperimentalmeasurementofETreactionsbetweenbiphenyl (Bp)andaseriesofor ganicsystems ,designedbyMilleretal.,isthefirstsuc cessfule… 相似文献
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Electrocatalysis of NADH Oxidation with 3,4-Dihydroxybenzoic Acid Covalently Bound to Self-assembled
《高等学校化学研究》1998,(1)
ElectrocatalysisofNADHOxidationwith3,4-DihydroxybenzoicAcidCovalentlyBoundtoSelf-assembledCysteamineMonolayersonaGold-electro... 相似文献
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IntroductionDinuclearcomplexesofsilver(I)havebeenexten sivelystudied ,1owingtotheirimportanceascatalystsandtransferreagents.2 AromaticN heterocycleshavebeenprovedtobesuitableligandsincoordinationchemistry .3Thetriazolederivatives ,forinstance ,havebeenwidely… 相似文献
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AnElectrochemicalStudyofPrusianBlueMicrocrystalinesMixedinPEO400PolymerElectrolytebySolid┐stateVoltammetryGUOLi-pingandLINXia... 相似文献
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1 INTRODUCTIONSolid stateboratesexhibitavarietyofphysicalandchemicalfeatures,rangingfromnonlinearopticalpropertiesof β BaB2 O4(β BBO) [1 ] tothecatalyticactivityofCu2 Al6B4O1 7[2 ] ,whichhaveattractedgreatattentionofmanyscientificresearchers.Aspartofourefforttosynt… 相似文献
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1 INTRODUCTIONWehaveshownaninterestinexopolyhedralcyclizationofmetalligandstocluster.AseriesofmetallaboranecompoundscontainingfivememberedringssuchasM-O-C-O-BandM-S-C-O-Baresynthesizedandcharacterized.Thegroupsofcyclizationincludeacetate〔1〕,benzoat… 相似文献
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1 INTRODUCTIONSince1980,manyV/Fe/Sheterometallicsulfurclustercompoundshavebeenreported.RauchfussetalobtainedtwokindsofV/Fe/Scompounds[1]using(CH3C5H4)2V2S4asanorganometallicligand,oneis(MeCp)2V2Fe2(NO)2S4withacubanelikestructureandanotheris(MeCp)2V2S4Fe(NO)2and(MeCp)2V2S4… 相似文献
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MonteCarloSimulationofBandTextureFormationinMacroscopicallyOrientedSemirigidPolymerSystemZhangHong-dong;YANDong;andYANGYu-lia... 相似文献
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MechanismsofExcitationTransferinBilayerVesiclesContainingSchiffBaseMoietyAdsorbedDyeAnionsMADong-sheng(DepartmentofChemistry,... 相似文献
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1 INTRODUCTIONBiscyclopentadienyllanthanidechloridesforallthelanthanideelementshavebeensynthesizedandstructurallycharacterized〔1〕.Tert-butylcyclopentadienylisasuitableligandforpreparationoflanthanocenechlorides.Thesynthesesandmolecu-larstructuresof〔(… 相似文献