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1、ViewOnline/JournalHomepage/TableofContentsforthisissueChemCommDynamicArticleLinksCitethis:Chem.Commun.,2011,47,3180–3182www.rsc.org/chemcommCOMMUNICATIONNano-andmicrocrystalsofaMn-basedmetal–oligomerframeworkshowingsize-dependentmagneticresonancebehaviorswGuoza
2、nYuan,ChengfengZhu,YanLiuandYongCui*Received20thSeptember2010,Accepted13thJanuary2011DOI:10.1039/c0cc03981kArobust3DMn-basedmetal–organicframeworkcontainingveryhighinvivolongitudinal(R1)MRrelaxivitiesbybinding11metallosalenhexamersissynthesizedanditsnano-andmic
3、ro-tointracellularproteins.Metallosalencomplexeshave12crystalsarefabricatedbyusingsurfactant-mediatedhydrothermaldiversepotentialapplicationsinbiologicalprocesses.Toandsolventprecipitationmethods;theparticlesexhibitaninversepreparemetal–metallosalenpolymerparti
4、clesforMRI,asize-dependenteffectofmagneticresonancerelaxivitybehaviors.dicarboxylatefunctionalizedmetalloligandH2[MnL][H4L=(R,R)-()-N,N0-bis(3-tert-butyl-5-(carboxyl)salicylidene)-1,2-Metal–organicframeworks(MOFs)provideaninterestingdiaminocyclohexane)]waschose
5、n,asthelinkertoformstableavenuetohybridmaterialsthroughfine-tuningtheircompositionMOFsandtocarryahighpayloadofparamagneticMnionsandstructuresbyajudiciouschoiceofmetalionsandorganicforMRI.Wereportherethesynthesisofarobust3D1Mn-basedmetal–metallosalenoligomerframe
6、workwithlinkers,andhavepromisingapplicationsindiverseareasincludingstorage,catalysisandelectro-optics.2Allthesecontrollableparticlesizesandmorphologies,whichexhibitspossibleapplicationscouldundergoremarkabledevelopmentaninversesize-dependenteffectofMRproperties.
7、ifbulkMOFmaterialswerescaleddowntomicro-andAsoutlinedinFig.1,theenantiopureH4Lligandwas3preparedinsevenstepsinanoverall33%yieldfromthenanometreregimes.Forexample,nanoscaledMOFshaverecentlyemergedaspromisingmagneticresonanceimagingreadilyavailableandcheap2-tert-
8、butyl-4-methylphenol.4HeatingamixtureofMn(ClO)6HOandHL(2:1molar(MRI)agentsanddrugdeliveryagents.Althoughseveral4224approacheshavebeendevelopedtofabricatenano-andratio)inDMF
