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1.
Crystalengineeringofcoordinationpoly merswithopenframeworksassembledfromor ganic metalcompoundshasbeenofgreatinter estsowingtotheirpotentialpropertiesasnovelmaterialssuchasgasadsorption[1,2 ] ,ion ex change[3] andcatalysis[4] .Theconstructionofcoordinationpolym… 相似文献
2.
Inthepastfewyears ,themagneticprop ertiesofcomplexescomprisinglanthanideandtransitionmetalionshaveattractedincreasinginterest[1~ 6 ] .Thesecomplexesareimportantinthestudiesofmagneticexchangeinteractionbetweenlanthanideandd transitionmetalions,andtheycanpro… 相似文献
3.
Recently ,manymaterialresearchershavecometorealizethattheelectroniccharacterhasadecisionalroleonmaterialpropertiesandmicrostructure[1~ 3] .Theseworksrevealanewmechanismtomaterialbehaviorandanewun derstandingelectrontheoryofalloy .Addition aly,theeffectofane… 相似文献
4.
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
5.
《中国稀土学报(英文版)》2002,(5)
TheXi′anInternationalHydrometallurgyConference (ICHM′2 0 0 3)willbeheldinXi’an ,China ,October ,2 0 0 3.Theconferencewillprovideaforumforexchangeanddiscussionofnewideasandachievementsrelatedtoallaspectsofhydrometallurgytechnologyinrecentyears .TheXi′anUniversityo… 相似文献
6.
Owingtothevariationofcoordinatedmodesforcarboxylateanions ,manydifferenttypesofcrystalstructuresfortherareearthcomplexeswitharomaticacidandnitrogen containingligandswereobtained[1~ 4 ] .Theirthermaldecompositionbehaviorhadbeenre portedinpreviouspapers[5~ 8] .… 相似文献
7.
Thecomplexesofrareearthwithaminoacidsareofmanyspecialfunctions[1 ] ,andtheyhaveveryextensiveapplicationsinbiolo gy ,agricultureandpharmacologicalsci ence[2 ,3 ] .Inrecentyears ,thecomplexesofrareearthwithaminoacidsbecomethehotspotsofrareearthbiologicalinorgani… 相似文献
8.
Adsorption of Er( Ⅲ ) and Its Mechanism on Diglycolamidic Acid Resin 总被引:15,自引:0,他引:15
Thesynthesischaracterizationandadsorp tionpropertyofpolymericmaterialshavebeenpublishedinrecentyears[1~ 9] .DiglycolamidicacidresinDAARisanovelpolymericmaterialwhichcontainsafunctionalgroup [-N(CH2 COOH ) 2 ].Itpossessesnotonlyprotonthatcanexchangewithcation ,b… 相似文献
9.
Synthesis and Structural Determination of Eight Coordinate NH_4[Yb(Ⅲ)(Cydta)(H_2O)_2]·5H_2O 总被引:1,自引:0,他引:1
ecausesomerareearthmetalcompoundshavethepromotiveactiontothegrowthofani malsandplants[1 ] ,andthefunctionofantiin flammation ,antibacterium ,anticoagulantionandanticaner[2 ] ,theinvestigationonthesyn thesesandstructuresoftheeverykindsofrareearthmetalcompounds… 相似文献
10.
Low Temperature Behaviors of La-Ca-(Mn,Fe)-O CMR Materials 总被引:1,自引:1,他引:0
Recentlyrareearthoxideswithperovskitestructurehasattractedgreatattentionsowingtotheircolosalmagnetoresistance (CMR)effect,whichareofpotentialapplicationsinmagneticstorage ,sensingandrefrigerating[1,2 ] .TheCMReffectinrareearth manganeseoxidesisexplainedmain… 相似文献
11.
Rareearthionspossessobviousfosteref fectonthegrowingofcrop[1] .Aminoacidsarethecomponentsofproteins ,andtherearemanyreportsaboutthestudyonthebinarycomplexesofrareearthwithaminoacids[2 ,3] .Imidazoleisaheteroclycliccompoundpossess ingbactericideandanti infecti… 相似文献
12.
Coordinationcomplexescontainingcy clometallatedligandshaverecentlybeenthefocusofinterestduetotheirunusualphoto physicalandelectrochemicalproperties[1 ] .Someofthecommonestrecentexamplesarebasedonoligopyridineanalogues[2 ] .Thereareanumberofreasonsforthewide… 相似文献
13.
Recently ,therehasbeenconsiderablein terestinlanthanide(Ⅲ )hexacyanoferratesandtheanalogouscobalt(Ⅲ )aswellaschromium(Ⅲ )complexesbecauseoftheirpotentialascatalytic ,semiconductive ,andmagneticmate rials[1~ 4] .Forexample ,magneticstudiesonaseriesofthree dimensio… 相似文献
14.
Rare Earth Effects on Adhesion of Cr_2O_3 Oxide Scale Formed on Surface of Co-40Cr Alloy 总被引:18,自引:3,他引:15
Theresistanceofalloytohightemperatureoxidationdependsontheformationofaslowlygrowingandwelladherentoxidefilm .Thead ditionofsmallamountofrareearthelementscangreatlyimprovetheresistantoxidationpropertyofalloys[1~ 3 ] .Inthispaper ,theoxi dationkineticswasstud… 相似文献
15.
Spectra and Upconversion of Neodymium Tungstate Crystals 总被引:2,自引:0,他引:2
Thestudyofneodymiumtungstatecrystalscanbetracedbackto 1 960s[1] .Asonetypeoflasermaterial,howeverithasnotbeenpaidenoughattentionforalongtime .Oneofrea sonsforthisisthatthehighconcentrationofNd3 ionsmakes 1 0 6μmemissionquench .Recently ,theupconversionemissionofh… 相似文献
16.
Thethermaldecompositionofbastnaesitecalcinedinairatmospherewasoneofthepre treatmentstepinhydrometallurgyandpyromet allurgy[1,2 ] .Theinfluenceofdecompositiontemperatureandatmosphereonthedecomposi tionproductswasinvestigatedbyXiangetal[3~ 5 ] .Thermalanalysist… 相似文献
17.
Thechemicalheatingasakindofheatingmethodforladlerefiningispaidmoreandmoreat tention ,suchasinRH KTB ,CAS OB ( PI) ,RH OB[1- 4] etc .Amongthem ,theCAS OBprocessde velopedrapidlyduetoitsabilityofrapidlyraisingtemperatureandaccuratelyadjustingsteelcomposi tion .Butthe… 相似文献
18.
Becauseoftheirpossiblerelevancetomodelcompoundsofcationtransportacrossmembranes,differenttypesofopenchain“crown”ethermoleculeshavebeensynthesizedinordertostudytheirinteractionwithsodium ,potassiumandrareearthions[1,2 ] .Panetal.[3 ] showedthatCe3 formsa 1∶1com… 相似文献
19.
Asabranchofsuperamolecularchem istry ,lanthanidecalixarenechemistryhasat tractedconsiderableresearchinterestforsever alyears[1~ 5 ] .Inthisrespect,Harrowfieldetal.[6~ 13] synthesizedalotoflanthanidecal ixarenecomplexes ,andrevealedtheircrystalstructures .Amongstt… 相似文献
20.
《中国稀土学报(英文版)》2000,18(2):104
ICREisaseriesinternationalrareearthconferenceorganizedbytheChineseSocietyofRareEarths(CSRE).The4thInternationalConferenceonRareEarthDevelopmentandApplications(ICRE2001)willbeheldinBeijing,China,onJune1520,2001.TheChineseSocietyofRareEarthshasthepleasuretohostIC… 相似文献