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Title

Photoluminescence, unconventional-range temperature sensing, and efficient catalytic activities of lanthanide metal-organic frameworks

AuthorsGomez, Germán E.; Kaczmarek, Anna M.; Van Deun, Rick; Brusau, Elena V.; Narda, Griselda E.; Vega, Daniel; Iglesias, Marta ; Gutiérrez-Puebla, Enrique ; Monge, M. Ángeles
KeywordsLuminescence
Metal–organic frameworks
Cyanosilylation
Temperature sensing
Lanthanides
Issue DateApr-2016
PublisherJohn Wiley & Sons
CitationEuropean Journal of Inorganic Chemistry 2016(10): 1577-1588 (2016)
AbstractA luminescent lanthanide metal-organic framework (MOF) based on Eu and Tb ions with 2-phenylsuccinate (EuTb-psa) was obtained solvothermally to explore its behavior as a temperature sensor in an unconventional temperature range through the study of the thermal evolution of the hypersensitive 4f-4f D→F transition and the luminescence lifetime. The efficiency of the luminescence process was evaluated through the europium intrinsic quantum yield (Q), and its variation as a function of temperature is also reported. The optical properties of four isostructural compounds (Pr-psa, Nd-psa, Gd-psa, and Tb-psa) were investigated and compared with those of related compounds. The energy of the triplet state of the ligand was also estimated. The samples were fully characterized by single-crystal and powder X-ray diffraction, thermal analysis, and vibrational spectroscopy. The heterogeneous catalytic activities of a series of Ln-psa MOFs (with Ln = Sm, Eu, Gd, Tb, EuGd, and EuTb) were evaluated in a one-pot cyanosilylation with benzaldehyde as the substrate. A luminescent lanthanide metal-organic framework (MOF) based on Eu and Tb ions with 2-phenylsuccinate (EuTb-psa) is explored as a temperature sensor. The optical properties of four isostructural compounds (Pr-psa, Nd-psa, Gd-psa, and Tb-psa) are also investigated. The heterogeneous catalytic activities of these Ln-psa MOFs are evaluated in a one-pot cyanosilylation reaction.
Publisher version (URL)https://doi.org/10.1002/ejic.201501402
URIhttp://hdl.handle.net/10261/186194
DOIhttp://dx.doi.org/10.1002/ejic.201501402
Identifiersdoi: 10.1002/ejic.201501402
e-issn: 1099-0682
issn: 1434-1948
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