共查询到20条相似文献,搜索用时 15 毫秒
1.
IntroductionTheresistivityρ(T)ofsuperconductorsisdescribedasfollows[1]:κ(T<Tc)ρ(T)=ρ∥=AT(T>Tc,(abplane)ρ⊥=BT(T>Tc,(caxis)(1)HereA<B.Expression(1)accuratelysummariesuptheresistivitythroughmeasuringtheanisotropyconductivityofasinglecrystalofYBa2Cu3O(7-… 相似文献
2.
IntroductionAtomtransferradicalpolymerization(ATRP),basedoncuproushalides(CuX)/2,2-bypyridine(bpy)/alkylhalides(RX)ascatalyst/initiatorsystem,isanewmethodtocontroltheradicalpolymerizationofstyreneand(methyl)methacrylate(MMA)[1,2].BecausetheCuCl/1,10… 相似文献
3.
ZHENG Yue qing * 《高等学校化学研究》1999,(3)
IntroductionPreviously,wereportedthecrystalstructureofK2[Ni(CO3)2(H2O)4][1],whichcrystallizedinthebaylissitetypestructureandwasfoundtobeisostructuralwithK2[Co(CO3)2(H2O)4][2]andK2Mg(CO3)2·4H2O[3].Inordertosystematicallyinvestigatetheoccurrenceoftheco… 相似文献
4.
1 INTRODUCTIONDimolybdenumalkynecomplexes〔Mo2(μR1C≡CR2)(CO)4(η5C5H5)2〕canreactwithavarietyofreagentssuchasphosphines,thiols,elementalsulfur,Ru3(CO)12andCo2(CO)8〔1-4〕.Intheproductsthealkyneligandisusuallyretained.Sometimes,alkynescissionoccurs.Being… 相似文献
5.
GUO Li ping ** 《高等学校化学研究》1999,(1)
IntroductionTransitionmetalhexacyanoferates,PrussianBlue(PB)anditssubstitutedanalogues,suchascobalthexacyanoferate(CoHCF),hav... 相似文献
6.
7.
1 INTRODUCTIONInoureffortstodevelopthelow-valenceMo-SRcompounds,wehavefoundanMo(0)-compound,〔Mo2(SR)2(CO)8〕2-,whichisobtainedfromthereactionofMo(CO)6withRS-inhighyield,possessesaninterestingtwo-electrontransferproperty.Numerouskindsofdinuclearmolybde… 相似文献
8.
IntroductionCycloadditionreactionsthatareakindofimportantreactioninorganicchemistryhavebeenextensivelyusedinorganicsyntheses,especiallyinthesynthessofmedicine,aromalizerandnaturalmaterials[1—3].Inrecentyearsrareearthcomplexs[mostlyYb(fod)3,Eu(fod)3an… 相似文献
9.
Effects of Y(Ⅲ) Ions on the Fluorescence Properties of Ce(Ⅲ) Ion and the Organic Ligands in the Comp
LI Wen-lian. 《高等学校化学研究》1997,(3)
EffectsofY(Ⅲ)IonsontheFluorescencePropertiesofCe(Ⅲ)IonandtheOrganicLigandsintheComplexLIWen-lian.(ChangchunInstituteofPhysics... 相似文献
10.
Introduction(+)-α-Cyperone(1)and(-)-α-10-epicyperone(2)arewidelyusedaschiraltemplatesforthesynthesisofothersesquiterpenederiv... 相似文献
11.
《中国化学快报》1995,(7)
STUDYONSYNTHESIS,CHARACTERIZATIONANDCATALYSISOFPILLAREDANIONCLAY(Ⅲ)──SYNTHESISOFZnAl-BW_(11)O_(39)Z(H_2)~(n-)ThanksforthesupportofFoundationofCECandtheopenlabofHydrothermalSynthesisinJinnUniversityeddifferentkindsoftriheteropolyoxometalate(TH'POMs)totheZnAIlayeredclays,usingtheesterificationofn-butylalcoholandaceticacidasprobereaction.andfoundthatthepillaredcompoundsweremoreactiveandselectivethanthesolidacidcatalystssuchasacidicion-exchangeresinsl4].Onthebasisofpreviouswork.wenowencapsulatetriheteropolyoxome 相似文献
12.
CHEN Huai-yong WANG Yan-zhong GOU Xiao-jun LI Xiang-hui WANG Yong-ting DING Tian-bing LI Qing-shan ZENG Ling-fang ZHAO Lu-lu 《高等学校化学研究》1999,15(4):378-380
IntroductionChronicMyeloidleukemia(CML)wasamaindiseaseshowntobeconsistentlyassociat-edwiththecytogeneticabnormalitynowknownasthePhiladelphia(Ph′)chromosome.Theabnormalityusuallyinvolvesareciprocaltranslocationbetweenchromosomes9and22,andmorethan95%of… 相似文献
13.
ZHAO Li-wei ZHANG Han-qi CAO Yan-bo YANG Wen-jun JIN Qun JIN Qin-han FU Yao 《高等学校化学研究》1998,14(4):370-374
IntroductionEletrothermalvaporization(ETV)asameansofsampleintroductioninmicrowavein-ducedplasma(MIP)sourcespectrometryhasbeen... 相似文献
14.
SynthesesandMagneticPropertiesofCu(Ⅱ)-RE(Ⅲ)HeterobinuclearComplexeswithN,N′-Bis(3-carboxyisalicylidene)-trimethylenediamineTA... 相似文献
15.
LiTi2(PO4)3ceramicsmayacquireahighelectricalconductivitybypartialysubstitutingsomeM3+ions(M=Al,Sc,Y,La)fortheTi4+ionsordoping... 相似文献
16.
SpectralAnalysisandCrystalStructureofTris(benzoyl-trifluoroacetonate)bis(triphenyl-phosphineoxide)Europium(Ⅲ)LeiHeng-Yi;YangY... 相似文献
17.
ApplicationoftheReactionsofFerrocene(Ⅰ)SaltswithBis[dicarbonyl(η ̄5-cyclopentadienyl)iron]andBis[dicarbonyl(η ̄4-butadiene)coba... 相似文献
18.
IntroductionSeveralacyclicchiralinsectpheromonesarecharacterizedbyopticallyactiveerythro-methylalkanol.TypicalexamplesarethepheromoneofantTetramoriumimpurm(1a)andthetrailpheromoneofantLeptogenysdiminuta(1b).In1981,Pasteelsetal.[1]isolated4-methyl-3-h… 相似文献
19.
IntroductionTheNO-3coordinationreactionswith(TPP)CoⅡwerecharacterizedusingthetechniquesofcyclic-voltammetry(CV)andspectroelet... 相似文献
20.
Synthesis,CrystalStructureandThermode-compositionKineticsofCopper(Ⅱ)Complexwithbis-(Schiffbase)Derivedfrom3-Methoxysalicylald... 相似文献