Abstract
Abstract By using 2,5-pyridinedicarboxylate and sebacate as rigid and flexible mixed carboxylate linkers, five new 3D lanthanide complexes, [Ln(seb) 0.5 (2,5-pydc)(H 2 O)] (Ln = Eu ( 1 ), Nd ( 2 ), Sm ( 3 ), Pr ( 4 ) and Tb ( 5 ), H 2 pydc = 2,5-pyridinedicarboxylic acid, H 2 seb = sebacate acid) with macroporous structures, have been synthesized. Complexes 1–5 were characterized by elemental analysis, ICP spectrometer and IR spectroscopy. In particular, the structures of 1–3 were further determined by single-crystal X-ray diffraction. Structural analyses reveal that complexes 1–3 have intricate 3D frameworks, which are constructed by 2,5-pyridinedicarboxylate and sebacate ligands. In addition, the thermogravimetric analysis of 1–3 and photoluminescent properties of 1 and 5 are also discussed in detail.
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