Chemistry and Physics Faculty Articles
Title
Exploring Lanthanide Luminescence in Metal-Organic Frameworks: Synthesis, Structure, and Guest-Sensitized Luminescence of a Mixed Europium/Terbium-Adipate Framework and a Terbium-Adipate Framework
Document Type
Article
Publication Date
5-1-2010
Publication Title
Inorganic Chemistry
ISSN
0020-1669
Volume
46
Issue/No.
10
First Page
3960
Last Page
3965
Abstract
Two lanthanide-organic frameworks were synthesized via hydrothermal methods. Compound 1 ([(Eu,Tb)(C6H8O4)3(H2O)2]•(C10H8N2), orthorhombic, Pbcn, a = 21.925(2) Å, b = 7.6493(7) Å, c = 19.6691(15) Å, α = β = γ = 90°, Z = 4) takes advantage of the similar ionic radii of the lanthanide elements to induce a mixed-lanthanide composition. Compound 2 ([Tb2(C6H8O4)3(H2O)2]•(C10H8N2), orthorhombic, Pbcn, a = 21.866(3) Å, b = 7.6101(10) Å, c = 19.646(3) Å, α = β = γ = 90°, Z = 8) is the terbium-only analogue of compound 1. Solid-state measurements of their luminescence behavior demonstrate that the neutral guest molecule (4,4‘-dipyridyl) residing in the extraframework channels is successful in sensitizing lanthanide ion emission. In compound 1, columinescence occurs, and both lanthanide ions show emission. Additionally, quantum yield and lifetime measurements support the premise that the Tb3+ center is also acting to sensitize the Eu3+, effectively enhancing Eu3+ emission.
Additional Comments
NSF grant #s: DMR-0348982, DMR0419754
NSUWorks Citation
de Lill, D. T., de Bettencourt-Dias, A., & Cahill, C. L. (2010). Exploring Lanthanide Luminescence in Metal-Organic Frameworks: Synthesis, Structure, and Guest-Sensitized Luminescence of a Mixed Europium/Terbium-Adipate Framework and a Terbium-Adipate Framework. Inorganic Chemistry, 46, (10), 3960 - 3965. https://doi.org/10.1021/ic062019u. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/237
ORCID ID
0000-0003-0891-7246
DOI
10.1021/ic062019u
Comments
©2007 American Chemical Society