Synthesis,crystal structures and luminescence performance of a cage and a porous Pb~(2+) coordination polymer
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摘要
Metal–organic frameworks(MOFs) are a rapidly growing class of hybrid materials with many multifunctional properties.As peculiar metal-organic molecular architectures,the constructing of cage molecules and porous structure is also of great interest for their remarkable structural characteristics and well-defined cavities.The nature of porosity in the MOFs plays a central role in their functional properties.In order to improve their functionality and application,the strategy of attaching some functional groups such as –NH2,-OH,-SH and –COOH to the selected ligands have been proven to be an very effective synthetic route to construct MOFs with these free-standing functional groups decorating their the cavities or porosities that will significantly enhance their functions.Recently,tetrazolate and their derivatives as five-membered N-heterocyclic azoles also have received extensive attention not only because of the richness of properties,but also for their excellent stabilities to construct the novel MOFs.Although tetrazole ligand(tz) has four available N atoms to bond the metal ions,not all the N atoms will take participation in the coordination in most reported tetrazole-based MOFs.It is expectable that the uncoordinated N atoms from tz ligand will functionalize their porosity and cavity if such type of MOF are obtained.
Metal–organic frameworks(MOFs) are a rapidly growing class of hybrid materials with many multifunctional properties.As peculiar metal-organic molecular architectures,the constructing of cage molecules and porous structure is also of great interest for their remarkable structural characteristics and well-defined cavities.The nature of porosity in the MOFs plays a central role in their functional properties.In order to improve their functionality and application,the strategy of attaching some functional groups such as –NH2,-OH,-SH and –COOH to the selected ligands have been proven to be an very effective synthetic route to construct MOFs with these free-standing functional groups decorating their the cavities or porosities that will significantly enhance their functions.Recently,tetrazolate and their derivatives as five-membered N-heterocyclic azoles also have received extensive attention not only because of the richness of properties,but also for their excellent stabilities to construct the novel MOFs.Although tetrazole ligand(tz) has four available N atoms to bond the metal ions,not all the N atoms will take participation in the coordination in most reported tetrazole-based MOFs.It is expectable that the uncoordinated N atoms from tz ligand will functionalize their porosity and cavity if such type of MOF are obtained.
引文
[1]M.Zhu,X.-Z.Song,S.-Y.Song,S.-N.Zhao,X.Meng,L.-L.Wu,C.Wang,H.-J.Zhang,Adv.Sci.2015,2,1500012

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