Organic Thermometers Based on Aggregation of Difluoroboron β-Diketonate Chromophores.

J Phys Chem A

Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.

Published: December 2020

We report several novel thermometers resulting from the temperature-induced aggregation of difluoroboron β-diketonate chromophores. These thermometers exhibit a much wider temperature-dependent fluorescence emission from 445 to 592 nm along with the color change from blue to red in a dilute chloroform solution. Spectroscopy measurements and theoretical calculations confirm that the thermochromic luminescence originates from the reversible change in the noncovalent intermolecular interactions and the abrupt volume shrinkage of the solvent at its melting point. The present work provides a new strategy for rationally designing high-performance thermometers having a wide emission property.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.jpca.0c08649DOI Listing

Publication Analysis

Top Keywords

aggregation difluoroboron
8
difluoroboron β-diketonate
8
β-diketonate chromophores
8
organic thermometers
4
thermometers based
4
based aggregation
4
chromophores report
4
report novel
4
novel thermometers
4
thermometers temperature-induced
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!