Lanthanide-based coordination polymers assembled by a flexible multidentate linker: Design, structure, photophysical properties, and dynamic solid-state behavior
(2009) Chemistry: A European Journal — Vol. 15, n° 21, p. 5273-5288 (2009)
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- Abstract
- Four picolinate building blocks were implemented into the multidentate linker N,N',N'-tetrakis[(6-car- boxypyridin-2-yl)methyl]butylenedi-amine (H 4tpabn) with a linear flexible spacer to promote the assembly of lan-thanide-based 1D coordination polymers. The role of the linker in directing the geometry of the final assembly is evidenced by the different results obtained in the presence of Htpabn3- and tpabn4- ions. The tpabn4- ion leads to the desired 1D polymer {[Nd- (tpabn)]H 3O 6H2O} (12). The Htpabn3- ion leads to the assembly of TbIII and ErIII ions into 1D zigzag chains of the general formula {[M- (Htpabn)]-xH2O}∞ (M = Tb, x = 14 (l). M = Tb, x = 8(11). M = Er, x = 14 (2). M = Er, x = 5.5 (4)), a 2D network is formed by the EuIII ion (i.e., {[Eu- (Htpabn)]40H2O} ∞ (7)), and both supramolecular isomers (1D and 2D). are obtained by the TbIII ion. The high flexibility of the polymeric chains results in a dynamic behavior with a solvent-induced reversible structural transition. The TbIII- and EuIII-containing polymers display high-luminescence quantum yields (38 and 18%, respectively). A sizeable near-IR luminescence emission is observed for the ErIII- and Nd III-containing polymers when lattice water molecules are removed.
- Affiliations
ESRF, Grenoble (France) Chimie
Citations
Marchal, C., Filinchuk, Y., Chen, X.-Y., Imbert, D., & Mazzanti, M. (2009). Lanthanide-based coordination polymers assembled by a flexible multidentate linker: Design, structure, photophysical properties, and dynamic solid-state behavior. Chemistry: A European Journal, 15(21), 5273-5288. https://doi.org/10.1002/chem.200802589 (Original work published 2009)