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A new coordination polymer [Cd(btc)(e-urea)](e-urea) ( 1; btc = 1,3,5-benzenetricarboxylate; e-urea = ethyleneurea) has been urothermally synthesized using ethyleneurea hemihydrate as the solvent and exhibits (3,6)-connected rutile ( rtl) topology. The structure of 1 consists of trinuclear Cd units and the btc linkers. Species 1 features a non-interpenetrating three-dimensional open framework with channels filled by the e-urea additives and guest molecules. The thermogravimetric behavior and photoluminescent property of 1 were studied. [ABSTRACT FROM AUTHOR]

Abstract: Two new Cd coordination polymers, [Cd(5-Nisp)(e-urea)]n (1), and [Cd2(5-Hisp)2(e-urea)2(en)]n (2), (where 5-Nisp=5-nitroisophthalate; 5-Hisp=5-hydroxyisophthalate; e-urea=ethyleneurea; en=1,2-ethanediamine), have been urothermally synthesized by using ethyleneurea hemihydrate as the solvent. Single-crystal X-ray diffraction analyses reveal that both 1 and 2 have linear chain sub-structures linked by 5-Nisp ligands or 5-Hisp ligands into three-dimensional frameworks. The thermogravimetric behavior and the photoluminescent properties of 1 and 2 were studied. [Copyright &y& Elsevier]

A novel three-dimensional metal-organic framework with primitive cubic ( pcu) topology exhibits interesting tunable photoluminescent emission based on the variation of excitation light at room temperature. By judicious choice of two different conjugated organic linkers incorporating in a certain framework, the contributions of distinct emission bands may be finely controlled. This work may provide a new route to explore functional luminescent materials with tunable photoluminescence. [ABSTRACT FROM AUTHOR]