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Three new solvent-directed 3D lead(II)-MOFs displaying the unique properties of luminescence and selective CO2 sorption.
|Title||Three new solvent-directed 3D lead(II)-MOFs displaying the unique properties of luminescence and selective CO2 sorption.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Li J, Yang G, Hou L, Cui L, Li Y, Wang Y-Y, Shi Q-Z|
|Journal||Dalton transactions (Cambridge, England : 2003)|
|Date Published||2013 Oct 7|
Three new solvent-directed three-dimensional (3D) lead(II) coordination polymers, [Pb2(L)2]n (1), [Pb3(L)3]n (2) and [Pb(L)]·H2O (3) [H3L = 2-(pyridine-2-yl)-1H-imidazole-4,5-dicarboxylic acid], have been synthesized solvothermally. As influenced by different solvent systems, compounds 1 and 3 exhibit varying architectures from a multi-nodal 3,3,4,4-connected to a uninodal 3-connected net, while 2 with helices represents a binodal 3,4-connected topological net. Moreover, 3 possesses a micropore which is decorated with pyridyl systems and uncoordinated carboxylate oxygen atoms. In addition, the small-sized and highly polar pores enable 3 to attract CO2 strongly, leading to a high sorption heat for CO2 and significant selectivity for CO2 over H2 and N2 at 293 K. The luminescent behaviors and emissive lifetimes of 1-3 are also discussed.
|Alternate Journal||Dalton Trans|