Photoluminescent 3D lanthanide-organic frameworks with 2,5-pyridinedicarboxylic and 1,4-phenylenediacetic acids

authors	Soares-Santos, PCR; Cunha-Silva, L; Paz, FAA; Ferreira, RAS; Rocha, J; Trindade, T; Carlos, LD; Nogueira, HIS
nationality	International
journal	CRYSTAL GROWTH & DESIGN
keywords	FULL-COLOR PHOSPHORS; COORDINATION POLYMERS; HYDROTHERMAL SYNTHESIS; MAGNETIC-PROPERTIES; STRUCTURAL-CHARACTERIZATION; 3-HYDROXYPICOLINIC ACID; LUMINESCENCE PROPERTIES; ADIPATE FRAMEWORK; TRIMESIC ACID; METAL-IONS
abstract	Novel three-dimensional lanthanide-organic frameworks with 2,5-pyridinedicarboxylic (2,5-H(2)pdc) and 1,4-phenylenediacetic acids (1,4-H(2)pda) were synthesized by hydrothermal synthesis, and characterized structurally using single-crystal and powder X-ray diffraction, elemental and thermogravimetric analyses, FT-IR and photoluminescence spectroscopies, and diffuse reflectance. The structural details of [Ln(2)(2,5-pdc)(2)(1,4-pda)(H2O)(2)} [where Ln(3+) = Eu3+, Tb3+, (Eu0.2Tb0.8)(3+) and (Eu0.1Tb0.9)(3+)] and the dehydrated [Eu-2(2,5-pdc)(2)(1,4-pda)] phase were unveiled by single-crystal X-ray diffraction. Photoluminescence measurements performed for the Eu3+ and Tb3+ compounds show emission at room temperature. Energy transfer from Tb3+ to Eu3+ has been observed for the Eu3+/Tb3+ mixed materials.
publisher	AMER CHEMICAL SOC
issn	1528-7483
year published	2008
volume	8
issue	7
beginning page	2505
ending page	2516
digital object identifier (doi)	10.1021/cg800153a
web of science category	Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary
subject category	Chemistry; Crystallography; Materials Science
unique article identifier	WOS:000257408200078