Science China Chemistry

, Volume 59, Issue 4, pp 436–441 | Cite as

Visible and near-infrared luminescence of polycatenated cationic pyridinone lanthanide networks



A series of isomorphic lanthanide coordination polymers [Ln(III)(MBP)2(NO3)2(Br)·2C3H6O] [Ln=Eu, Tb, Er, Yb, and Gd; MBP=N,N′-methylene-bis(pyridin-4-one)] featuring polycatenated sql cationic network and incorporated bromide counter ion were prepared. Their visible and near-infrared (NIR) luminescence properties were characterized by steady-state excitation and emission spectra, as well as luminescence lifetimes and quantum yields. The D2d dodecahedron coordination geometry causes visible light excitations and strongly monochromatic emissions. The external heavy-atom environment induces remarkable enhancement on the NIR emissions. The sensitization processes are revealed by analyzing the electronic properties of MBP ligand.


coordination network lanthanide pyridinone luminescence 


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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province; State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouChina

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