一系列基于混合配體策略構筑的金屬有機骨架的合成、結構及性質(英文)icframeworksMOFsareaclassofcrystallinematerialscomposedofmetalionsorclusterscoordinatedtoorganicligands.MOFsexhibittunablepropertiessuchasporosity,surfacearea,andfunctionality,whichmakethemattractivematerialsforvariousapplicationsincludinggasstorage,catalysis,sensors,anddrugdelivery.ThedesignandsynthesisofMOFshaveevolvedrapidlyoverthepastdecadewithafocusondevelopingMOFswithbetterstability,higherporosityandgreaterfunctionality.Inthispaper,wereviewrecentadvancesintheconstructionofMOFsbasedonhybridligandstrategiesanddiscusstheirstructuresandproperties.giesTheuseofhybridligandstrategiesinMOFsynthesisinvolvestheincorporationoftwoormoredifferentorganicligandsinasingleMOFstructure.Thisapproachcanenhancetheconnectivityandstabilityoftheframeworkandprovideadditionalfunctionality.Thereareseveraltypesofhybridligandstrategies,includingmixedligand,catenation,andinterpenetration.dMOFscontaintwoormoredifferenttypesoforganicligandscoordinatedtoasinglemetalionorcluster.Byusingamixtureofligandswithdifferentsizes,shapes,andfunctionalities,mixedligandMOFscanhaveenhancedporosity,stability,andchemicalselectivity.ForexamplemixedligandMOFsbasedonZn(II)andcarboxylicacidshavebeenreportedtoexhibithighCO2sorptioncapacityandselectivity,whichisattributedtothepresenceofopenmetalsitesandcarboxylatefunctionalgroups.onMOFsCatenationMOFsareMOFsinwhichtwoormoremetal-organicsubunitsareconnectedbyorganiclinkerstoformalarger,morecomplexstructureCatenationMOFscanhaveenhancedstabilityandmechanicalstrengthduetothepresenceofmultiplemetal-organicsubunitsForexampleacatenationMOFbasedonZn(II)andcarboxylicacidswasreportedtoexhibithighmechanicalstabilityandtunabletransitiontemperaturesduetothepresenceofcatenatedmetal-organicchains.ationMOFsrpenetrationMOFsareMOFscomposedoftwoormoreidenticalordifferentnetworksthatareinterpenetratedtoformathree-imensionalstructureInterpenetrationMOFscanhaveenhancedstabilityandfunctionalityduetothepresenceofmultiplenetworks.ForexampleaninterpenetrationMOFconsistingoftwoidenticalnetworksbasedonZnIIandcarboxylicacidswasreportedtoexhibitareversiblegasadsorptionbehaviorduetothepresenceoftwosetsofporechannels.lCharacterizationThestructuresofMOFsaretypicallydeterminedusingX-raycrystallographywhichallowsforthevisualizationofthethree-dimensionalarrangementofmetalionsorclustersandorganicligandsinthecrystallatticeThestructuralcharacterizationofMOFsisimportantforunderstandingtheirpropertiesandapplicationsInadditiontoXraycrystallographyothertechniquessuchasscanningelectronmicroscopytransmissionelectronmicroscopy,andNMRspectroscopycanbeusedtostudythemorphologysurfacearea,andchemicalcompositionofMOFs.ThepropertiesofMOFsdependontheircomposition,structure,andsynthesisconditionsMOFsexhibitawiderangeofpropertiessuchasporositysurfaceareachemicalselectivityandcatalyticactivity.PorousMOFsareparticularlyattractiveforgasstorageandseparationapplicationsastheycanselectivelyadsorbsmallgasmoleculessuchasCO2,CH4,andH2.ThetunableporosityandchemicalfunctionalityofMOFscanalsobeexploitedforcatalyticapplicationsasMOFscanactsefficientheterogeneouscatalystsforvariousreactionsincludingoxidation,reduction,andhydrogenation.nsummarytheconstructionofMOFsbasedonhybridligandstrategieshasprovidednewopportunitiesforthedesignandsynthesisofMOFswithenhancedstabilityporosityandfunctionality.MixedligandMOFscatenationMOFsandinterpenetrationMOFshavebeenshowntoexhibitarangeofinterestingpropertiesthatmakethemttractivematerialsforvariousapplicationsThestructuralcharacterizationofMOFsisessentialforunderstandingthei