Cryogenic Nanothermometer Based on the MIL‐103(Tb, Eu) Metal–Organic Framework. Issue 13 (5th January 2016)

• Record Type: Journal Article
• Authors: Ananias, Duarte; Brites, Carlos D. S.; Carlos, Luís D.; Rocha, João
• Other Names: Garcia Yann sponsoringEditor.; Su Bao‐Lian sponsoringEditor.
• Is Part Of: European journal of inorganic chemistry. Issue 13/14(2016)
• Page Start: 1967
• Page End: 1971
• Publication Date: 2016-01-05
• Subjects: Metal–organic frameworks -- Nanothermometers -- Luminescence -- Lanthanides -- Nanostructures; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201501195
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: The microporous metal–organic framework MIL‐103 doped with Tb 3+ and Eu 3+, formulated as [(Tb0.95 Eu0.05 )(btb)(H2 O)]· (solv) x [H3 btb = 1, 3, 5‐tris(4‐carboxyphenyl)benzene; solv = H2 O, CH3 OH] has been shown to be a good platform for luminescent ratiometric thermometry. Although operative over a wide range of temperatures (10–320 K), this material exhibits, in the cryogenic range (<100 K), one of the best performances of metal–organic frameworks, with a relative thermal sensitivity of 2.85 % K –1 at 14 K. The material exists in the form of nanoparticles, suitable for nanothermometry applications (e.g., microfluidics). Moreover, as MIL‐103 is nanoporous, its use as a multisensing platform deserves further consideration in the near future. Abstract : Nanoparticles of MIL‐103 doped with Tb 3+ and Eu 3+ are among the best metal–organic framework luminescent (ratiometric) thermometers functioning in the cryogenic range (<100 K), with a relative thermal sensitivity of 2.85 % K –1 at 14 K. Being also microporous, these lanthanide‐bearing MIL‐103 nanoparticles are, potentially, an excellent multisensing platform.