简介：ThereactionofNdCl3withlithiummethylnaphthalenein1:2moleratioinTHFgeneratesblackpowder.Thepowderreactswithcyclooctatetraene（COT）inTHFtoformthetitlecomplex.[Li（THF）4Nd（C8H8）2]·2THFcrystallizesinthemonoclinicspacegroupP2/cwithunit-celldimensionsa=1.7858（7）nm,h=1.3243（4）nm,c=1.8086（6）nm.β=106.52（4）°,V=4.10nm3andDc=1.268g/cm3forZ=4.F（000）=1660,R=0.0774,Rn=0.0733.Thecomplexconsistsofdiscreteion-pairandtwoTHFmoleculesadduct.Intheanion,theneodymiumatomiscoordinatedbytwoCOTrings.ThestructureofthecationshowsthatthelithiumatomisattachedwithTHFmoleculesonly.
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简介：Reactionof(MeC5H4)3LnwithHOCH2CH2NMe2intetrahydrofuran(THF)givesthenewcomplexes[(MeC5H4)2Ln(μ-OCH2CH2NMe2)]2(Ln=Sm,Y,Nd)withnitrogenfunctionalizedμ-alkoxideligand.ThecomplexeswerecharacterizedbyelementalanalysisandIR,and[(MeC5H4)2Sm(μ-OCH2CH2NMe2)]2wasstructurallycharacterizedbytheX-raydiffractiontobeadimerformedbytwounsymmetricoxygenbridges.ThecomplexhasatricyclicskeletonwiththeadditionaltwoSm-NbondsviaintramolecularcoordinationofOCH2CH2NMe2.ThecoordinationnumberofthecentralmetalSmisnine.Thetitlecomplexesshowgoodcatalyticactivityforring-openingpolymerizationofε-caprolactone.
简介：用柠檬酸溶胶-凝胶工艺制备出了LiV3O8化合物,并检测了其作为热电池阴极材料时的放电性能,干凝胶210℃焙烧所得的粉末颗粒疏松多孔,300℃时可变成结晶岩状,低温焙烧时出现了Li0.3V2O5和LiV2O5相,经650℃长时间保温后可转变为LiV3O8,模拟Li-B/LiCl-KCl/LiV3O8（或V2O5）热电池500℃放电试验表明,LiV3O8因具有良好的电子导电体和较低的Li+扩散极化,其放电较V2O5平稳,虽峰值电压略有降低,但可利用的比容量（电压降至峰值电压的75％或2.0V）均不低于V2O5;LiV3O8中掺入8％的P2O5时可提高小电流放电时的电压。
简介：Ca8Mg(SiO4)4Cl2:Eu2+phosphordopedwithSr2+cationforCa2+partially,wassynthesizedbysolid-statereactionathightemperatureunderreducingatmosphere,anditsluminescentpropertieswereinvestigated.TheexperimentalresultsindicatethattheemissionintensityofthephosphorincreasesafterbeingdopedwithafewamountofSr2+ion.Theemissionpeakofthephosphorblueshifttoabout464nmwhenthephosphorisdopedwithlargequantityofSr2+ions.TheexcitationspectrumindicatesthatthephosphorcanbewellexcitedbyUVandbluelightfrom300to460nm,andthephosphorwasfittedwellfortheexcitationbyUVorblue-LED.
简介：TheNd60Fe20Al8Co10B2alloywaspreparedbysuctioncastingofthemoltenalloyintoacoppermoldunderargonatmosphere.Themicro-structuralandmagneticpropertychangesintheNd60Fe20Al8Co10B2alloyduringcrystallizationwereinvestigatedbyX-raydiffraction(XRD),differentialscanningcalorimetry(DSC),scanningelectronmicroscope(SEM)andthevibratingsamplemagnetometer(VSM).TheprecipitationandNd-richandFe-richphaseshavenosignificanteffectontheintrinsiccoercitityforNd60Fe20Al8Co10B2alloyannealedbelow723K.However,thegrowthofFe-richphasedecreasesthesaturatemagnetizationandremanenceofthealloy.Thehardmagneticbehaviorisdisappearedwhenthealloyisfullycrystallized.
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![Synthesis and Crystal Structure of a Novel Ion-pair Complex of [Li（THF）4Nd（<b style='color:red'>C</b><b style='color:red'>8H8</b>）2]·2THF](/image/thesis0 "Synthesis and Crystal Structure of a Novel Ion-pair Complex of [Li（THF）4Nd（<b style='color:red'>C</b><b style='color:red'>8H8</b>）2]·2THF")
![Synthesis, Crystal Structure of [ （MeC5<b style='color:red'>H</b>4）2<b style='color:red'>Ln</b>（μ-OCH2 CH2NMe2 ） ]2 （<b style='color:red'>Ln</b> = Sm, Y, Nd） and Their Catalytic Activity for Ring-Opening Polymerization of ε-Caprolactone](/image/thesis2 "Synthesis, Crystal Structure of [ （MeC5<b style='color:red'>H</b>4）2<b style='color:red'>Ln</b>（μ-OCH2 CH2NMe2 ） ]2 （<b style='color:red'>Ln</b> = Sm, Y, Nd） and Their Catalytic Activity for Ring-Opening Polymerization of ε-Caprolactone")
