Issue 3, 2014

Sm and Eu(iii) lanthanide triple helicate cages based on N,N′-methylene-bis(pyridin-4-one)

Abstract

Presented here are Sm and Eu(III) lanthanide triple helicate cages with two distinct metal environments based on the N,N′-methylene-bis(pyridin-4-one) (MBP) ligand. Spontaneous resolution occurs in the crystallization of the Sm(III) complex. Luminescence is investigated by excitation of the metal ions with near-UV light. For the Sm(III) complex, close π–π stacking experienced by the pyridinone ring increases the sensitization of the Sm(III) ion, revealed by the appearance of 4G5/26H11/2 emission, the long luminescence lifetimes (35 and 18 μs) and the relatively high quantum yield (1.7%).

Graphical abstract: Sm and Eu(iii) lanthanide triple helicate cages based on N,N′-methylene-bis(pyridin-4-one)

Supplementary files

Article information

Article type
Communication
Submitted
21 Nov 2013
Accepted
14 Dec 2013
First published
04 Feb 2014

Inorg. Chem. Front., 2014,1, 226-230

Author version available

Sm and Eu(III) lanthanide triple helicate cages based on N,N′-methylene-bis(pyridin-4-one)

Y. Shu, X. Tang and W. Liu, Inorg. Chem. Front., 2014, 1, 226 DOI: 10.1039/C3QI00089C

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