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简介：Sixnewcompounds,α,β-KaHb[GeW9M3(H2O)3O37].xH2O(M=Al,Ga,In;a+b=7)andα-K9H5[Ge2W18Ga6(H2O)3O74].20H2O,weresynthesizedfromthelacunaryprecursorsαandβ-GeW9O3410-andcharacterizedbyelementalanalysis,spectroscopyandelectrochemistry.Tungsten-183NMRspectraofthetitlecomplexesconsistoftwolineswithintensityratio2:1asexpectedfortrisubstitutedheteropolyanions.Theintensityratioofα-Gacompoundis1:2,whichisdifferentfromothers(2:1).WiththehelpofFABmassspectrum,weconcludedthatitisadimerwithD3h,structureinaqueous,andtheothersexistbymonomerswithC3cstructures.

简介：Newphosphorus-andselenium-containingheterocyclyes,1,3,2,6-dioxaphosphaselena-cyclooctanes(la-1h),weresynthesizedbythereactionofbis(2-hydroxyethyl)selenidewithRP(X)Cl2whereR=alkoxyl,aroxyl,arylandX=Oorlonepair.Theirstructuresweredeterminedbyspectro-scopiesandelementalanalysesandfinallyconfirmedbytheX-raycrystallographicanalysisof1c.Themolecularstructuresoftheheterocycleswerediscussedintermofconformationalanalysis.

简介：ThetitlecomplexEu(Ⅲ)(TTA)3(phen)(whereTTA=thenoyltrifluoroacetonemonoanion;phen=1,10-phenanthroline)hasbeensynthesizedinmixedsolventsofacetoneandethanol(1:1volumeratio)anditscrystalstructurehasbeendeterminedbyX-raydiffraction.Thecomplexcrystalsaretriclinic,spacegroupP1(#2)withcelldimensionsofa=1.3241(2)nm,6=1.5278(4)nm,c=0.9755(3)nm,α=92.49(2)°,β=102.57(2)°,γ=91.62(2)°,V=1.9268(8)nm3,Z=2,μ(MoKα)=18.77cm-1,Dx=1.720g/cm3.ThecoordinationgeometryofEuatomisadistortedsquareantiprism,andtheencapsulatedstructurethatcanmeetthestructuralrequirementofthetypicaleuropiumluminescentsensor.Thefluorescencespectrumsuggeststhatthecomplexisastrongphotoluminescentmaterial.

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简介：HighactiveandstablegoldcatalystssupportedoncrystallineFe2O3andCeO2/Fe2O3werepreparedviathedeposition-precipitationmethod.ThecatalystwithaAuloadof1.0%calcinedat180°CshowedaCOconversionof100%at-8.9°C,whileAu/CeO2/Fe2O3convertedCOcompletelyat-16.1°C.Evenhavingbeencalcinedat500°C,Au/Fe2O3stillexhibitedsignificantcatalyticactivity,achievingfullconversionofCOat61.6°C.ThecatalystwithalowAuloadof0.5%couldconvertCOcompletelyatroomtemperatureandkepttheactivityunchangedforatleast150h.N2adsorption-desorptionmeasurementsshowthatthecrystallinesupportspossessedahighspecificsurfaceareaofabout200m2/g.CharacterizationsofX-raydiffractionandtransmissionelectronmicroscopyindicatethatgoldspecieswerehighlydispersedasnanoorsub-nanoparticlesonthesupports.Evenafterthecatalystwascalcinedat500°C,theAuparticlesremainedinanano-sizeofabout6―10nm.X-rayphotoelectronspectrarevealthatthesupportedAuexistedinmetallicstateAu0.ThemodificationofAu/Fe2O3byCeO2provedtobebeneficialtotheinhibitionofcrystallizationofFe2O3andthestabilizationofgoldparticlesindispersedstate,consequentlypromotingcatalyticactivity.

简介：AsimpleandefficientcascadeMichael/cyclizationreactionof3-aminoindolin-2-oneswithenones/enalswasidentifiedforthesynthesisofpotentiallybiologicallyactive3’,4’-dihydrospiro[pyrrol-3,2’-oxindoles],usingDBUasanefficientcatalystandethyleneglycolasanenvironmentallybenignsolvent.Morediverse3’,4’-dihydrospiro[pyrrol-3,2’-oxindoles]analoglibrarieswerepreparedingoodyields(upto97%).Thestructureof3’,4’-dihydrospiro[pyrrol-3,2’-oxindoles]wasconfirmedbymassspectrometryanalysis,NMRanalysisandsinglecrystalX-raydiffraction.Themainadvantagesofthismethodincludetheavailabilityofstartingmaterials,simpleexperimentaloperation,shortreactiontime,aswellashighyieldsobserved.

简介：ThecomplexK3H4GeW9V3O40·8H2OcrystallizedinamonocliiniesystemwithspacegroupP2,Mr=2784.67,a=11.099（3）,b=16.452（4）,c=13.534（4）,β=108.14°,Z=2,V=2348.493,F（000）:2456,μ=239.7cm-1,De=3.932g/cm3.ThefinalR=0.083for4528non-zeroreflexions.ThestructureofanionsGeW9V3O40andGeW9O34belongstoA--type.

简介：一系列5-phenyl-3H-spiro[indoline-3,2-[1,3,4]thiadiazol]-2-one类似物被综合并且他们的Bcl-2蛋白质禁止的活动被学习。铅混合物原来用荧光被识别基于极化的竞争有约束力的试金。在调查的10混合物之中，1k分别地显示出好有约束力的亲密关系到Bcl-xL和Mcl-1，与8.9mol/L和3.4mol/L的抑制常数。当复合1c完成了紧密的有约束力的亲密关系到Bcl-xL时(Ki=0.16mol/L)，有潜力是新铅混合物。

简介：AmicrocalorimetricmethodwasusedtoevaluatetheactionofYb^3+ionsonthegrowthmetabolismofStaphylococcusaureus.Thepower-timecurvesofthegrowthmetabolismofStaphylo.coccusaureusandtheactionofYb^3+ionswereobtainedbyus-ingstopped-flowmethodat37℃.Forevaluationoftheaction,thegrowthrateconstants(k1andk2)forthelogphase1,logphase2,andthetotalheateffect(Qtotal)forStaphylococcusaureusweredetermined.TheresultsshowthatYb^3+ionsatlowconcentrationshavethestimnlatoryeffectonStaphylococcusau-reusandthatYb^3+ionsathigherconcentrationcouldinhibititsgrowth.

简介：3-Mercaptopropionicacidmonolayerprotectedgoldnanoclusters(MPA-MPCs)weresynthesizedandcharacterizedbytransmissionelectornmicroscopy,UV-Visspectroscopy,X-rayphotoelectronspectroscopyandFourlertransforminfraredspectroscopy.Theexactvalueofquantizeddouble-layercapacitanceofMPCsinaqueousmediawasobtainedbydifferentialpulsevoltammograms.

简介：Thebilayerorganiclight-emittingdiode(OLED)withabluefluorescentlanthanumcomplex,tris(1-phenyl-3-methyl-4-isobutyryl-5-pyrazolone)-(2,2′-dipyridyl)lanthanum[La(PMIP)3(Bipy)],asalightemittingmaterialandN,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine(TPD)asaholetransportingmaterialemitsbrightgreenlightinsteadofbluelight.Thedataoftheabsorption,thephotoluminescence(PL)andthephotoluminescenceexcitation(PLE)spectraofTPD,La(PMIP)3(Bipy)andthemixtureofTPDandLa(PMIP)3(Bipy)(molarratio1∶1)provethattheelectroluminescentemissionoriginatesfromtheexciplexontheinterfacebetweenTPDandLa(PMIP)3(Bipy).Byimprovingdeviceconfigurationwithtris(8-hydroxyquinoline)aluminum(ALQ)asanelectrontransportingmaterial,amaximumluminanceof800cd/m2wasobtained.

简介：Lens-likevateriteCaCO3microringscomposedofCaCO3nanoparticlesweresynthesizedviaamicro-emulsion-mediatedrouteatroomtemperaturewithethanolandn-hexanolasco-surfactant.Thisprocessdidnotde-mandanyadditionalenergysuchasheatingorcontinuousagitation.Itwasthefirsttimetouseethanolasco-surfactantinthesynthesisofmicroornanomaterials.AndtheethanolwasbelievedtoplayanimportantroleintheaggregationfashionofCaCO3nanoparticles.Moreover,shuttle-shapednanorods,hexagonalnanoplates,andrice-likenanoparticleswerealsofabricatedbymodulatingthegrowthparameters.Additionally,theintroduceofethanolintomicroemulsionsasco-surfactantmaybegeneralizedasanovelgreenroutetocontrolthestructureofotherfunctionalmaterials.

简介：Inthisletter,Fe2O3UFP（UltrafineParticles）hydrosolandorganosolwithhighthirdorderopticalnonlinearsusceptibility（3）havebeenreportedforthefirsttime.ThesurfacialmodificationofFe2O3UFPwithdodecylbenzenesulfonateions（DBS）canenhancethenonlinearopticalresponsethroughinterfacialconfinementofelectronmotion.Theinvolvedmechanismisdiscussed.

简介：本文探讨（CH3Li）4中键的作用,通过计算,发现（CH3Li）4分子的面甲基结构比顶甲基结构要稳定;指出Li—Li间的成键作用相当强,约为Li2分子中键作用的40%左右,估计（CH3Li）4中的J7Li-6Li值约为1Hz。

简介：6/3-(4-Chlorophenyl)-s-triazolo[3,4-b][1,3,4]thiadiazoles(2a-e)and(5a-e)weresynthesizedrespectivelybyintermolecularcyclizationof5-aryl/4-chlorophenyl-4-amino-3-mercapto-1,2,4-triazoles(1a-e)and(4)with4-chlorobenzoicacid/arylacids,whichwerecondensedwithpiperazineunderphasetransfercatalystTBABtoyieldthecorrespondingfreebasesofmonopiperazinederivativesandfollowedtoformwater-solublesalts(3a-e)and(6a-e)withhydrochloricacidingoodyields.Theinvitrobiologicalresultsshowedthatpiperazinegroupconjugatedwiththeabovefusedheterocyclesplayedanimportantroleinantibacterialactivity.ThestructuresofnovelcompoundswereconfirmedbyIR,1HNMR,MSandelementalanalysis.

简介：Novelsulfur-containingcompounds(3a–3c,4a–4c)wereobtainedinethanolwith1,3-diphenyl-2-propanoneasthestartingmaterial.Theadvantagesofthisprocedureweremildreactionconditions,simpleprotocol,andhighyields.ThestructuresoftheproductswerecharacterizedbyIR,1HNMR,MSandelementaryanalysis.Thecrystalofthenewcompound4abelongstomonoclinic,spacegroupC2witha=18.727(3),b=6.5179(9),c=13.7576(18),b=131.0610(10)°,V=1266.2(3)A3,Z=2,Dc=2.136g/cm3,μ=1.078mm-1,F(000)=843,R=0.0490andwR=0.1247for3211observedreflectionwithI>2δ(I).X-rayanalysisrevealsthatthemoleculeisnotsymmetrical,themolecularstructureisstabilizedbyweakp–pstackinginteractions,andnoclassicalhydrogenbondscanbeobserved.

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简介：Thesynthesisof(S)-2-(3-arylacrylamido)-3-{4-[2-(5-methyl-2-phenyloxazol-4-yl)ethoxy]phenyl}propanoicacidsisdescribed.TheirstructureswereconfirmedbyH-NMR.