17247.單核稀土席夫堿df單分子磁體設(shè)計(jì)合成

1、分類號(hào)UDC一密級(jí)公丹暑哦瀘產(chǎn)篝碩士研究生學(xué)位論文單核稀土席夫堿d／f單分子磁體設(shè)計(jì)合成申請人：學(xué)號(hào)：培養(yǎng)單位：學(xué)科專業(yè)：研究方向：指導(dǎo)教師：完成日期：單鵬宇2121387化學(xué)化工與材料學(xué)院應(yīng)用化學(xué)精細(xì)有機(jī)合成與技術(shù)孫文彬副教授2015年3月29日黑龍江大學(xué)碩士學(xué)位論文AbstractInthisthesis，aseriesof(11)lanthanide—based3d一4fSingle—MoleculeMagnetsbuiltbyS

2、chiffbasedligandsanddiamagneticZinc(II)ionsandhnthanide(III)ionsaresynthesizedandtenofthemdisplaySingleMoleculemagneticbehaviorThroughtuningrnoleculesymmetrybyroodulatingthecoordinationenvironmentstocontroltheligandfield

3、andstudythecorrelationsbetweensingle—moleculemagneticbehaviourandstructureThermincontentsinchdethefollows：1Achssofcomplexesbuiltbyligands(H2L1HzL2，HxL3，H2L4，H2L5)，withtransitionmetalZn01)andDy(1II)ionsweredesignedandsynt

4、hesized，theirstructuresweredetermined，beingtheZnLntype3d4fcomplexeswiththeformulas：[(L4Zn)zDy(OAc)C1]ZnCh3H20(1)，【(L03Zrb(oH)3Dy3C14]4CH2C12(2)，[(LIZn)2DyCl3】(3)，【(L3Zn)2Dy(OAc)C12]。CH2Ch(4)，【(L3Zn)2DyChi’05CHsCN(5)，[(L2

5、Zn)2Dy(1120)Br2]ZnBr4(6)，[(L2Zn)2Dy(SCN)3](7)，【(L5Zn)zDy(OAc)C1ZnCl3CH2CI3H20(8)Allofthemshowsbwmagneticrelaxationbehaviorinwhichcomplex3showshigheranisotropyenergybarrier(Uerf)being398Kandbbckingtemperaturebeing8K2Aclas

6、sofcomplexesconstructedbyligandsH2L1，Dy(III)andtransitionmetalCo(II)andZn(11)ions[(LzCo)Dy(acac)2Br2]‘CH2C12(9)，【(L2Zn)Dy(acac)CI](10)weredesignedandsynthesizedandtheirstructuresweredeterminedAllofthemshowslowmagneticrel

7、axationbehaviorandthecomplex9showshigheranisotropyenergybarrier(Ueff)beingl5】Kandblock啦temperaturebe噸4K3A‘threearms”trinuclearcomplex【(L6Zn)2DyCl]CHCl3’MeOH(11)formedbyligandsH3k，Dy(1II)andZn(II)bnswassynthesized，andthes