简介：Introduction　　TheheteropolyanionphasetransferchemistrycreatedbyPopeM.T.In1984hasopenedupanewfieldforheteropolycompoundresearch［1-3］.Butsubstitutingcoordinationwatermoleculesbyorganicopticallyactiveligandhasnotbeenreportedinliteraturesuntil1997［4］.

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简介：Noveltetranuclearcoppercomplexes,Cu4(OH)2(ClO4)3(HA).H2O(1)andCu4(ClO4)5(H3B).3H2O(2),weresynthesizedbyreacting1,5-bis(1'-phenyl-3'-methyl-5'-pyrazolone-4')-1,5--pentanedionewith1,3-propanediamineand2-hydroxyl-1,3-propanediamineinthepresenceofatemplatereagentcopperion,New[2+2]typeopencyclicmultidentateligandsarealsoobtainedfromthereaction(H4A)andH6Bstandfornewcompoundsfrom1,3-propanediamineand2-hydroxyl-1,3-propanediamine,respectively),TheyeachcontainfiveC=O,threeC=NandoneNH2group[s,Thecomplexeswerecharacterizedbyelementalanalyses,conductivity,FR-i.r.electronicspectraandextendedX-rayabsorptionfinestructure(EXAFS),Copperionsin(1)arebasicallyfourcoordinatewithtetragonalgeometry.TheaveragecoordinationbonddistancesofCu-NandCu-Oare1.91Aand2.05A.In(2).copperionsareprimarilyfivecoordinatewithsquare-basedpyramidalgeometry.TheaveragecoordinationbonddistancesofCu-NandCu-Oare1.93Aand2.08A.Fourcopperatomsinmoleculesmaybearrangedtetragonally.Boththeligandfieldandthecoordinationbondsincomplex(1)arestrongerthanthosein(2).Investigationsonvariabletemperaturesusceptibilitiesshowthatsomeantiferromagneticexchangeinteractionexistinthecomplexes,Theplotsofx-1versusTobeytheCurie-Weisslawonlyatlowtemperature.Preliminaryresultsofabioassayindicatethatthetwocomplexeshavesomeantitumouractivityinvitro.

简介：Anovelcomplex,[Cu2(phen)(sal)(Hsal)2]n(1),wassynthesizedandstructurallycharacterized.Thebasicdimericunitsareholdbysalligandsandextendedinto1-Dnetwork.Thecarboxylategrougsofsalicylatescoordinatetothecentralioninthreedifferentcoordinationmodes:chelating,bridgingandbridging-chelating.Inthecaseofbridging-chelatingofthecarboxylategroupofthesalicylate,allthreeoxygenatomsofsalicylatearebidentatelycoordinatedtocopperion,namely,μ4-η^3bindingmode.

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简介：Awell-dispersedmetallicpalladiumcatalystmodifiedbypolymer-anchoredthioetherligandswasusedforthehydrogenationofcyclopentadienetocyclopentenewithhighactivityandselectivityinambientcondition.Theevidencestoshowthemodificationofcatalyticpropertiesbypolymeranchoredligandsweregiven.

简介：1ＩｎｔｒｏｄｕｃｔｉｏｎＳｏｍｅｏｒｇａｎｉｃｃｏｍｐｏｕｎｄｓｃａｎｔｒａｎｓｆｅｒｅｎｅｒｇｙａｂｓｏｒｂｅｄｉｎＵＶｒｅｇｉｏｎｔｏｒａｒｅｅａｒｔｈｉｏｎｓｗｈｉｌｅｔｈｅｙｃｏｏｒｄｉｎａｔｅｄｗｉｔｈｔｈｅｉｏｎｓａｎｄｔｈｅｎｔｈｅｒａｒｅｅａｒｔｈｉｏｎｓｅｍｉｔｃｈａｒａｃｔｅｒｉｓｔｉｃｆｌｕｏｒｅｓｅｎｃｅ.Ｔｈｅｌｕｍｉｎｏｕｓｉｎｔｅｎｓｉｔｙａｎｄｌｉｆｅｔｉｍｅｏｆｔｈｅｃｏｏｒｄｉｎａｔｅｄｒａｒｅｅａｒｔｈｉｏｎｓｉｓｍｕｃｈｍｏｒｅｔｈａｎｔｈｏｓｅｏｆｔｈｅｆｒｅｅｉｏｎｓ.Ｓｏｓｃｉｅｎｔｉｓｔｓｔａｋｅａｎｉｎｔｅｒｅｓｔｉｎｔｈｅｓｅｃｏｍｐｌｅｘｅｓ[1,2].Ｉｎｔｈｉｓｐａｐｅｒ,ｉｎｏｒｄｅｒｔｏｓｅｅｋｎｅｗｌｕｍｉｎｏｕｓｍａｔｅｒｉａｌｅｘｉｔｅｄｗｉｔｈｌｏｗｅｒｅｎｅｒｇｙ,ＥｉｇｈｔｃｏｍｐｌｅｘｅｓｏｆＥｕ3+ｗｉｔｈｐｙｒｉｄｉｎｅ2,6ｄｉｃａｒｂｏｘｙｌｉｃａｃｉｄ(Ｈ2ＤＰＣ)、1,10ｐｈｅｎａｎｔｈｒｏｌｉｎｅ(ｐｈｅｎ)ａｎｄｍｅｔｈｙｌｂｅｎｚｏｉｃａｃｉｄ(ＭＢＡ),ｉｎｃｌｕｄｉｎｇ...

简介：Themonophthalocyaninecomplexesofsamariumandterbiumcontainingaxial2-mercaptobenzothiazole(PcSm(MBT)(1)),2-(2-benzoxazol-2-yl)phenolate(PcTb(OON)(2))or2-(2-benzothiazol-2-yl)phenolate(PcTb(SON)(3))ligandsweresynthesizedandidentifiedbyelemental,LDI-TOFandX-ray(for1)analysis.Photoluminescence(PL)andelectroluminescence(EL)spectraofthecompoundscontainedonlyemissionbandsofphthalocyanineandaxialligandsbutdidnotcontainthebandsoff-ftransitions.Itwasfoundthatamongthecomplexes1,2,3thelatterhadhighestphotoconductivity(~10–7S/cm)andphotovoltaicproperties.Anorganicphotovoltaicdevice(OPV)ofconfigurationofITO/3/C60/Alq3/Alrevealedopen-circuitvoltage(VOC)of0.24Vandshortcurrentdensity(ISC)of0.3μA/cm2underilluminationbyaxenonlampat17mW/cm2.

简介：Easilyavailablechiralketoneswereemployedforthesynthesisofopticallyactivepyridylalcohols,whichwereappliedintheasymmetricdiethylzincadditiontoaldehydes,upto89.4%e.e.wasobtainedusingD-fructose-derivedpyridylalcohol.

简介：Thecatalytichydrogenationofpalladiumchelatingresinscontainingchiralaminoacidligandsbasedonlowercrosslinkedpoly(chloroethylacrylate)andsomeeffectsontherateofhydrogenationwerestudied.

简介：Catalyticasymmetriccarbon-carbonbondformationisoneofthemostimportantreactionsandhaveattractedmuchattentiontodevelopmoreefficientenantioselectiveC-Cformationmethodsinorganicsynthesis.Inthisfield,asymmetricadditionofdiethylzinctoaldehydes[1]andconjugateadditiontoenones[2]havedrawnspecialinterestsandhavebeengreatlydeveloped.Regardlessofit,muchspacesintheseareasstillexist,soitneedsmoreextensiveandintensiveresearchesforthepurposeofasfollows:(1)attachingligandstoapolymerfortheeasyseparationofthecatalystssoastobeabletoallowveryefficientrecoveryandreuseofthecatalysts,andthepossibilityofcarryingoutthedesiredtransfomationincontinuousmodeinaflowreactor,etc.,(2)searchingfornovelchiralcatalystswithsuchfeaturesasmoresuitableformoreextensivesubstratesvarieties,andmoreconvenientandeconomicalaswellaspossessingapplicableprospect,andsoon.Herewereportsomeworksintheseareasdoneinourlaboratory.

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简介：Thepolymerizationofethylenebytwoiron-basedcatalysts,{[2,6-ArN=C（Me）2C5H3N]FeCl2}（Ar=2,6-C6H3-Me21;2,6-C6Hv3（i-Pr）v2Ⅱ）hasbeeninvestigated.CatalystⅡproduceshighermolecularweightpolyethylene（PE）andbroadenedpolydispersitiesrelativetocatalystⅠunderanalogousconditionsandallpolymersarelinear.Thekineticprofileswithironcatalystsshowedasmoothpatternduringbothratebuild-upandratelowering,whicharedifferentfromthemetallocenecatalysts.ThepolymerizationactivityincreaseswithAl/Fevalueandanoptimumtemperaturerangeat40～45℃wasobserved.ThemolecularweightofPEdecreaseswiththeincreaseofAl/Feratioandriseofpolymerizationtemperature.

简介：Aseriesofcopper(Ⅱ)complexeswithpyridineN-oxide-2-ylmethylidened-ithiocarbazatesasligandsweresynthesizedandcharacterizedbyIRspectra,electronicspectraandmagneticmomentsmeasurementatroomtemperature.Variabletemperaturemagneticsusceptibilites(3-300K)offourcomplexsweremeasuredandfittedwiththeBleaney-Bowersdimerequationbyconsideringthemagneticinteractionbetweenmolecules.Thefittingresultsshowtheexistenceofintramolecularferromagneticinteractionsandintermolecu-laranti-ferromagneticinteractionsinthesecopper(Ⅱ)complexes.

简介：Theeffectsofpeptides,aminoacidsandorganicbasesasanaxialligandonreactionac-tivitiesintheelectrocarboxylationofbenzylchloridewithCO2catalyzedbyCoTPParereported.Theimidazoleorganicbase,peptidecontaining—SHandaminoacidcontainingimidazolylen-hancethecatalyticactivity.TheeffectofimidazoleamountsonthecatalyticactivityofCoTPPisstudied.

简介：Luminescentcoordinationcompoundswithnitrogen-containingligandshaveattractedmuchattentionduetotheirgoodperformanceinsensorandelectroluminescentdevicetechniques[1-17].Todevelopnewluminescentmaterials,alargenumberofd10metalcomplexes,especiallyzinccomplexes,withthenitrogen-containingligandshavebeensynthesizedandtheirluminescencebehaviourhavebeenstudied[1-11].Ithasbeenfoundthatforagivencomplex,thesizeoftheπ-conjugatedsystemoftheligandandtheelectroniceffectofsubstituentsattheligandareimportantfactorsformodulatingitsluminescentproperties[5,8,9].

简介：ＳＹＮＴＨＥＳＩＳ　ＡＮＤ　ＣＯＭＰＬＥＸＡＴＩＯＮ　ＰＲＯＰＥＲＴＩＥＳ　ＯＦ　ＮＥＷ　ＤＩＯＸＯ　ＴＥＴＲＡＡＭＩＮＥ　ＬＩＧＡＮＤＳ　ＷＩＴＨ　８－ＭＥＴＨＹＬ　ＱＵＩＮＯＬＩＮＥ　ＡＳ　ＦＵＮＣＴＩＯＮＡＬ　ＰＥＮＤＡＮＴ（Ｓ）ＳＹＮＴＨＥＳ...

简介：Aseriesofglucose-cholesterolderivatives8a-8easligandsforbraintargetingliposomesweresynthesized.Thepreparationofcompound6involvedtemporaryprotectionofglucosewithchlorotrimethylsilicaneandhexamethyldisilazanefollowedbyselectivelyhydrolyzed.Theknowncholesteryltosylate1werecoupledtoethyleneglycolstoaffordalcohol2a-2e.Substitutionanddeprotectionofalcohol2a-2efurnishedtheacids4a-4e,whichwascondensedwithcompound6togetcompounds7a-7e,andthenwasdeprotectedintetrahydrofuranwithTFAtoobtainthetitlecompounds.Asamodeldrug,tegafurwasentrappedbyliposomescoupledwith8b,andpreliminaryinvivoevaluationshown8bcouldenhancetheabilityofliposomesdeliveringtegafuracrossthebloodbrainbarrier.