首页 | 官方网站   微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 250 毫秒
1.
Themetalcomplexesofhydrazideshaveattractedconsiderableinterestowingtotheirantifungalandantibacterialactivities[1 ,2 ] .Theycanalsobeusedasanalyticalreagents[3 ]andextractingagentsformetalsalts[4 ] .Manycomplexesofhydrazideshavebeensynthesizedandcharacterized[5]…  相似文献   

2.
ompoundsofpyrazolinehavepropertiesofkillingbacteriaandpromotingplantgrowth[1] . 5 Phenylpyrazolinedithioformateformsstablecomplexeswithmanytransitionmetalelements[1] .However ,thecomplexesofrareearthmetalhavenotbeenreported .Asanextensionofourpreviousstudies[…  相似文献   

3.
Bothrareearthions[1 ] and 8 hydrox yquinolinepossessantibacterialfunction[2 ] ,andtheircomplexeshavemorepowerfuldisin fection .Thebinarycomplexesofthemwerere portedasearlyas 1 96 3.Meanwhile ,there searchontheternarycomplexesofthemhasbecomeveryactiveinrecentyearsan…  相似文献   

4.
Thecomplexesofrareearthwithaminoacidsareofmanyspecialfunctions[1 ] ,andtheyhaveveryextensiveapplicationsinbiolo gy ,agricultureandpharmacologicalsci ence[2 ,3 ] .Inrecentyears ,thecomplexesofrareearthwithaminoacidsbecomethehotspotsofrareearthbiologicalinorgani…  相似文献   

5.
Rareearthcomplexeswithsulfoxideandaromaticcarboxylacidhavebeenwidelystud ied[1~ 3 ] .Itisprovedthattheybothhavebet terfluorescencecharacter .Howeverthearo maticcarboxylofrareearthcomplexeshaveveryhighfluorescenceemissionintensityandstability ,butsolubilityi…  相似文献   

6.
Owingtothevariationofcoordinatedmodesforcarboxylateanions ,manydifferenttypesofcrystalstructuresfortherareearthcomplexeswitharomaticacidandnitrogen containingligandswereobtained[1~ 4 ] .Theirthermaldecompositionbehaviorhadbeenre portedinpreviouspapers[5~ 8] .…  相似文献   

7.
Coordinationcomplexescontainingcy clometallatedligandshaverecentlybeenthefocusofinterestduetotheirunusualphoto physicalandelectrochemicalproperties[1 ] .Someofthecommonestrecentexamplesarebasedonoligopyridineanalogues[2 ] .Thereareanumberofreasonsforthewide…  相似文献   

8.
SinceKidoetal.havefirstreportedonorganicelectroluminescence (EL)usingrareearth (RE)complexastheemittinglayer[1] ,muchworkhasbeenfocusedonthisfieldduetoitshighcolorpurity[2~ 4] .However,thekeyproblemwithrareearthβ diketonecomplexesistheirpoorthermalstabilityand…  相似文献   

9.
Theharmfulnessofheavymetalelementsonplantsisoneoftheseriousenvironmentalproblemsofthemodernworld .Inrecentyears ,thestudyonthemisalsooneofveryac tiveresearchprojectsinplantpollutionecologyfields[1~ 6 ] .LanthanidecomplexeswiththeSchiffbaseareaclassofcompou…  相似文献   

10.
Mostoforganolanthocenecomplexescon tainingLn Cσ bondhaveproventobehighlyefficientcatalystsorprecatalysts ,suchasforC-Hbondactivationreaction[1] ,hydrogenationreaction[2 ] ,andhomogenouspolymeriza tion[3] .However ,amongthisfamilyofcom plexes ,σ bondedorganolanthoc…  相似文献   

11.
Thesynthesesandcharacterizationofnew typeheteropolycomplexescontainingrareearthelementshavebeenreportedinthepast.Nowmuchattentionhasbeendirectedtowardstheresearchonacidic ,redoxordifunctionalcatalysts[1~ 3] .Vacantheteropolycomplexisanactiveinorganicligan…  相似文献   

12.
Inthepastfewyears ,themagneticprop ertiesofcomplexescomprisinglanthanideandtransitionmetalionshaveattractedincreasinginterest[1~ 6 ] .Thesecomplexesareimportantinthestudiesofmagneticexchangeinteractionbetweenlanthanideandd transitionmetalions,andtheycanpro…  相似文献   

13.
Rareearthionspossessobviousfosteref fectonthegrowingofcrop[1] .Aminoacidsarethecomponentsofproteins ,andtherearemanyreportsaboutthestudyonthebinarycomplexesofrareearthwithaminoacids[2 ,3] .Imidazoleisaheteroclycliccompoundpossess ingbactericideandanti infecti…  相似文献   

14.
Rareearthcomplexisanimportantkindoflumi nescencematerials ,muchattentionhasbeenpaidtotheexcellentluminescencecharacteristicsbasedontheirelectrictransitionbetweenthe 4fenergylevels[1,2 ] .Inrecentyearsmanyrareearthcomplexesthatchelatedwithorganiccompounds ,s…  相似文献   

15.
Lanthanideamidecomplexesareanim portantclassofprecursorsforlanthanidederivatives .Itcanbeeasilytransformedtocor respondinglanthanidecomplexbyreactingwithinvolvingproticreagents[1,2 ] .Thelanthanideamideusedassyntheticprecursorisneutralhomolepticcomplex ,oth…  相似文献   

16.
Thesynthesisof 3d 4fheteronuclearcom plexesisofinterestforseveralreasons[1~ 9] .Thesecomplexesareimportantinthestudiesofmagneticexchangeinteractionbetweenlan thanideandd transitionmetalions,andtheycanprobablybeusedasmagneticmateri als[2~ 8] .Thecoordinationands…  相似文献   

17.
Luminescentlanthanidecomplexeshavebeenintensivelystudiedfortheirwideapplica tionsinphoto devicesandfluoro analysis ,es peciallyintheuseasluminescentlabelsinflu oro immunoassayfield[1] .Sincetheback groundluminescenceofbiologicalmaterialsisusuallyshort lived…  相似文献   

18.
Thelanthanidecomplexesoforganiclig andsasfluorescentmaterialshavereceivedex tensiveattention .Theuseoffluorescentorgano lanthanidecomplexesrequirehighfluo rescenceintensityandlowcostcomplexes .Inrecentyears ,thefluorescenceenhancementofTb(Ⅲ )orEu(Ⅲ )complexe…  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.
Intherecentyears ,thestudiesonthede signandsynthesisofthestablelanthanidecomplexeswithtripodalligandshaveattractedmuchattentionbecauseoftheiruniqueproper tiesandtheirpotentialapplicationsinthevari ousresearchfields[1 ,2 ] .It′sworthynotethatthelanthanidecom…  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号