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1.
Coordinationcomplexescontainingcy clometallatedligandshaverecentlybeenthefocusofinterestduetotheirunusualphoto physicalandelectrochemicalproperties[1 ] .Someofthecommonestrecentexamplesarebasedonoligopyridineanalogues[2 ] .Thereareanumberofreasonsforthewide… 相似文献
2.
SynthesisandFluorescenceofTb~(3+)andEu~(3+)ComplexeswithN,N',N"-1,3,5-triazine-2,4,6-triyltris-[N-(carboxymethyl)]-glycine¥Gon... 相似文献
3.
Lanthanideamidecomplexesareanim portantclassofprecursorsforlanthanidederivatives .Itcanbeeasilytransformedtocor respondinglanthanidecomplexbyreactingwithinvolvingproticreagents[1,2 ] .Thelanthanideamideusedassyntheticprecursorisneutralhomolepticcomplex ,oth… 相似文献
4.
2,2′bipyridineN,N′dioxide(bipyO2)(bipyO2=NONO)wasknowntoformcoordinationcompoundswithmanymetalions,includingrareearthions[1,2].OwingtothepresenceoftwodonoroxygenatomsinbipyO2,itwouldformasevenmemberedring,whichisafinefluorescencechromophore,whilechelatingwithth… 相似文献
5.
Animportantclassoffluorescentlampandplasmadisplayphosphorsisbasedoncom poundsofthealkaliearth rareearthaluminatesystemsbecauseoftheirhighluminescenteffi ciencyandstabilityunderultravioletandvacu umultravioletlightexcitation[1] .Especially ,alkalineearthhe… 相似文献
6.
Owingtothevariationofcoordinatedmodesforcarboxylateanions ,manydifferenttypesofcrystalstructuresfortherareearthcomplexeswitharomaticacidandnitrogen containingligandswereobtained[1~ 4 ] .Theirthermaldecompositionbehaviorhadbeenre portedinpreviouspapers[5~ 8] .… 相似文献
7.
Inthepastfewyears ,themagneticprop ertiesofcomplexescomprisinglanthanideandtransitionmetalionshaveattractedincreasinginterest[1~ 6 ] .Thesecomplexesareimportantinthestudiesofmagneticexchangeinteractionbetweenlanthanideandd transitionmetalions,andtheycanpro… 相似文献
8.
Recently ,therehasbeenconsiderablein terestinlanthanide(Ⅲ )hexacyanoferratesandtheanalogouscobalt(Ⅲ )aswellaschromium(Ⅲ )complexesbecauseoftheirpotentialascatalytic ,semiconductive ,andmagneticmate rials[1~ 4] .Forexample ,magneticstudiesonaseriesofthree dimensio… 相似文献
9.
Synthesis and Structural Characterization of a Novel Two-Dimensional Heterometallic Coordination Polymer Nd_2Zn_3(EDTA)_3(H_2O)_( 11)·12H_2O 总被引:1,自引:0,他引:1
Themagneticpropertiesofheteropolynu clearcomplexescontainingboth 4fand 3dionshaveattractedconsiderableinterestssince1 985 [1] .Carboxylicacidisakindofpotentialligandforthedesignandsynthesisofthiskindofmagneticmolecularmaterials .Somecar boxylatecompoundswerep… 相似文献
10.
Rareearthionspossessobviousfosteref fectonthegrowingofcrop[1] .Aminoacidsarethecomponentsofproteins ,andtherearemanyreportsaboutthestudyonthebinarycomplexesofrareearthwithaminoacids[2 ,3] .Imidazoleisaheteroclycliccompoundpossess ingbactericideandanti infecti… 相似文献
11.
MechanochemicalEfectsinLn2O3Ln(OH)3(H2O)(Ln=La,Nd)SystemDimitrTodorovsky,AtanasTerziev(FacultyofChemistry,UniversityofSofia... 相似文献
12.
Becauseoftheirpossiblerelevancetomodelcompoundsofcationtransportacrossmembranes,differenttypesofopenchain“crown”ethermoleculeshavebeensynthesizedinordertostudytheirinteractionwithsodium ,potassiumandrareearthions[1,2 ] .Panetal.[3 ] showedthatCe3 formsa 1∶1com… 相似文献
13.
Luminescentlanthanidecomplexeshavebeenintensivelystudiedfortheirwideapplica tionsinphoto devicesandfluoro analysis ,es peciallyintheuseasluminescentlabelsinflu oro immunoassayfield[1] .Sincetheback groundluminescenceofbiologicalmaterialsisusuallyshort lived… 相似文献
14.
《钢铁研究学报(英文版)》2000,(2)
ResearchonLevitationForceinLevitationMeltingbyWaterCooledCrucibleCHENJian qiang ,RENZhong ming ,DENGKang ,JIANGGuo chang(ShanghaiUniversity ,Shanghai2 0 0 0 72 ,China)Abstract:Usingalevitationforcemeasuringdevicespeciallyde signed ,thelevitationbehaviorsofseveralk… 相似文献
15.
RareearthinorganiccompoundshavebeenwidelyusedasmicroelementfertilizerinagricultureinChina .ItwasdiscoveredthatcropsproductioncouldbeincreasedbyusingRE .Themechanismoftheincreaseofproduc tionattcactedincreasinglycloseattention .Pre viousstudiesshowedthatR… 相似文献
16.
Electrochemical Behaviors of Fe~(2 ) and Sm~(3 )in Urea-NaBr Low Temperature Melt and Their Inductive Codeposition 总被引:1,自引:0,他引:1
TbFe2 isthemaximummagnetostrictivematerialatthepresenttime .AlthoughtheλofSmFe2 isslightlylowerthanthatofTbFe2 ,butthemagneticcrystalofSmFe2 haslessanisotropyandthemagnetostrictisnegative .Hence ,theSmFe2 canbeappliedtotheintel ligentmaterialssuchastypinghead… 相似文献
17.
Somelanthanidecomplexeswithdisulfoxideshavebeenstudied[1,2].However,relativelylitleworkhasbeendoneoncrystalstructureoftheseco... 相似文献
18.
IthasbenwelknownthatsomelanthanidescanreplaceytriuminYBCOsuperconductorswithoutappreciablechangingthetransitiontemperature.N... 相似文献
19.
2 Hydroxydiphenylaceticacid (HD PHA) ,agoodplantgrowthregulator ,canformstableaqueousbinarycomplexeswithrareearths .TointroducePhen ( 1 ,1 0 Phenanthro line) ,theniceligandtorareearths ,intothesystem ,aternarycomplexEu(DPHA) 3·Phen·2H2 Owassynthesizedanditsphotophysic… 相似文献
20.
《钢铁研究学报(英文版)》2002,9(1)
FundamentalStudyonIronCarbideFormationbyTwo StepMethodNIHong wei1,ZHANGFeng shan1,CANGDa qiang2 ,JIANGJun pu2 (1.WuhanUniversityofScienceandTechnology ,Wuhan 4 30 0 81,China ;2 .UniversityofScienceandTechnologyBeijing ,Beijing 10 0 0 83,China)Abstract:Theexperimentalstudieso… 相似文献