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Issue 37, 2013
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Three new solvent-directed 3D lead(II)–MOFs displaying the unique properties of luminescence and selective CO2 sorption

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Abstract

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.

Graphical abstract: Three new solvent-directed 3D lead(ii)–MOFs displaying the unique properties of luminescence and selective CO2 sorption

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Publication details

The article was received on 08 May 2013, accepted on 23 Jun 2013 and first published on 26 Jun 2013


Article type: Paper
DOI: 10.1039/C3DT51203G
Citation: Dalton Trans., 2013,42, 13590-13598
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    Three new solvent-directed 3D lead(II)–MOFs displaying the unique properties of luminescence and selective CO2 sorption

    J. Li, G. Yang, L. Hou, L. Cui, Y. Li, Y. Wang and Q. Shi, Dalton Trans., 2013, 42, 13590
    DOI: 10.1039/C3DT51203G

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