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Luminescent Ratiometric Thermometers Based on a 4f-3d Grafted Covalent Organic Framework to Locally Measure Temperature Gradients During Catalytic Reactions.

Authors
  • Kaczmarek, Anna Marta1
  • Sekhar Jena, Himanshu2
  • Krishnaraj, Chidharth2
  • Rijckaert, Hannes2
  • Veerapandian, Savita3
  • Meijerink, Andries4
  • Van Der Voort, Pascal2
  • 1 Universiteit Gent, Department of Inorganic and Physical Chemistry, Krijgslaan 281, S3, 9000, Ghent, BELGIUM. , (Belgium)
  • 2 Ghent University: Universiteit Gent, Department of Chemistry, BELGIUM. , (Belgium)
  • 3 Ghent University: Universiteit Gent, Department of Applied Physics, BELGIUM. , (Belgium)
  • 4 Utrecht University: Universiteit Utrecht, Department of Chemistry, NETHERLANDS. , (Netherlands)
Type
Published Article
Journal
Angewandte Chemie International Edition in English
Publisher
Wiley (John Wiley & Sons)
Publication Date
Nov 10, 2020
Identifiers
DOI: 10.1002/anie.202013377
PMID: 33170988
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Covalent Organic Frameworks (COFs), an emerging class of crystalline porous materials, are a new type of support for grafting lanthanide ions (Ln3+), which can be employed as ratiometric luminescent thermometers. In this work we have shown that COFs co-grafted with lanthanide ions (Eu3+, Tb3+) and Cu2+ (or potentially other d-metals) can synchronously be employed both as a nanothermometer and catalyst during a chemical reaction. The performance of the thermometer could be tuned by changing the grafted d-metal and solvent environment. As a proof-of-principle, the Glaser coupling reaction was investigated. We show that temperature can be precisely measured during the course of the catalytic reaction using luminescence thermometry. This concept could be potentially easily extended to other catalytic reactions by grafting other d-metal ions on the [email protected] platform. © 2020 Wiley-VCH GmbH.

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