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1.
1 INTRODUCTIONThemaintargetinmacrocyclicdesignistosynthesizemacrocycleswhichareabletodiscriminateamongthedifferentmetalcations.Manyfactorsinfluencingtheselectivitiesofmacrocyclesforcationshavebeendeterminedsuchassubstituenteffect,donoratomictypesand…  相似文献   

2.
1 INTRODUCTIONThesaturatedmacrocyclestriazacyclononane(〔9〕aneN3)and1,4,7-trimethyl-1,4,7-triazacyclononane(Me3〔9〕aneN3)aremembersofafamilyofpotentiallytri-dentatemacrocyclicligandswhichformthermodynamicallyandkineticallystablecomplexeswithheaviermain…  相似文献   

3.
DuringclosedcycleCO2laserproces,owingtothedecompositionofCO2,theCOandO2producednotonlylowerthedischargestabilityofCO2laserbu...  相似文献   

4.
StudiesontheProtonationandComplexationsofDioxotetraamineMacrocyclesStudiesontheProtonationandComplexationsofDioxotetraamineMa...  相似文献   

5.
Horseradishperoxidase(HRP)canstronglycatalyzethereactionofH2O2oxidizingophenylenediamine(OPD),thechromaticproductofwhichcanbedetectedinenzymelinkedimmunosorbentassay(ELISA)withspectrophotometry[1].Involtammetricenzymelinkedimmunoassay[2—4],OPDH2O2HRPsystemhasf…  相似文献   

6.
1 INTRODUCTIONDithioacetals[1 3]havedemonstratedtheirpotentialforthesynthesisofheterocy cles,therefore ,theirsynthesisandreactionshaveattractedmuchattention ,butverylittlehasbeenreportedabouttheoxidationofdithioacetals[4].Accordingtotheprevi ousreport,theoxid…  相似文献   

7.
TheSynthesisandStructureofAdductofaNewSchiffBaseMacrocyclewithTwoTHF:THIONE_2B_4[36]ENE-O_6N_8·2THFZhenGuangLIN;HuaYangCHEN;YuJ...  相似文献   

8.
1 INTRODUCTIONThecondensationofaldehydeswithaminesisavaluablesyntheticmethodleadingtopolyazapolycyclics,includingcagedcompounds.Animportantapplicationofthisreactionisthesynthesisofhexabenzylhexaazaisowurtzitane(HBIW)anditsderivativeswithsubstitutedbenz…  相似文献   

9.
1INTRODUCTIONSincebiologicalandphamacologicalactivitieshavebeenwel knownfornumerousheterocyclicaromatictricyclesinrecentyears...  相似文献   

10.
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   

11.
闵玮  孙琳 《中国化学》2002,20(10):963-967
IntroductionElectrontransfer (ET)reactionsarefoundtobeanelementalstepinmanybiologicalprocessesindeed .1 6IthasbeenbelievedthattheexperimentalmeasurementofETreactionsbetweenbiphenyl (Bp)andaseriesofor ganicsystems ,designedbyMilleretal.,isthefirstsuc cessfule…  相似文献   

12.
ElectrocatalysisofNADHOxidationwith3,4-DihydroxybenzoicAcidCovalentlyBoundtoSelf-assembledCysteamineMonolayersonaGold-electro...  相似文献   

13.
IntroductionDinuclearcomplexesofsilver(I)havebeenexten sivelystudied ,1owingtotheirimportanceascatalystsandtransferreagents.2 AromaticN heterocycleshavebeenprovedtobesuitableligandsincoordinationchemistry .3Thetriazolederivatives ,forinstance ,havebeenwidely…  相似文献   

14.
AnElectrochemicalStudyofPrusianBlueMicrocrystalinesMixedinPEO400PolymerElectrolytebySolid┐stateVoltammetryGUOLi-pingandLINXia...  相似文献   

15.
1 INTRODUCTIONSolid stateboratesexhibitavarietyofphysicalandchemicalfeatures,rangingfromnonlinearopticalpropertiesof β BaB2 O4(β BBO) [1 ] tothecatalyticactivityofCu2 Al6B4O1 7[2 ] ,whichhaveattractedgreatattentionofmanyscientificresearchers.Aspartofourefforttosynt…  相似文献   

16.
1 INTRODUCTIONWehaveshownaninterestinexopolyhedralcyclizationofmetalligandstocluster.AseriesofmetallaboranecompoundscontainingfivememberedringssuchasM-O-C-O-BandM-S-C-O-Baresynthesizedandcharacterized.Thegroupsofcyclizationincludeacetate〔1〕,benzoat…  相似文献   

17.
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   

18.
MonteCarloSimulationofBandTextureFormationinMacroscopicallyOrientedSemirigidPolymerSystemZhangHong-dong;YANDong;andYANGYu-lia...  相似文献   

19.
MechanismsofExcitationTransferinBilayerVesiclesContainingSchiffBaseMoietyAdsorbedDyeAnionsMADong-sheng(DepartmentofChemistry,...  相似文献   

20.
1 INTRODUCTIONBiscyclopentadienyllanthanidechloridesforallthelanthanideelementshavebeensynthesizedandstructurallycharacterized〔1〕.Tert-butylcyclopentadienylisasuitableligandforpreparationoflanthanocenechlorides.Thesynthesesandmolecu-larstructuresof〔(…  相似文献   

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