Ratiometric dual fluorescence tridurylboron thermometers with tunable measurement ranges and colors

Xuan Liu; Jun Liu; Hu Zhou; Manling Yan; Canjun Liu; Xudong Guo; Jiao Xie; Shayu Li; Guoqiang Yang

doi:10.1016/j.talanta.2019.120630

Ratiometric dual fluorescence tridurylboron thermometers with tunable measurement ranges and colors

Talanta. 2020 Apr 1:210:120630. doi: 10.1016/j.talanta.2019.120630. Epub 2019 Dec 9.

Authors

Xuan Liu¹, Jun Liu², Hu Zhou³, Manling Yan³, Canjun Liu³, Xudong Guo⁴, Jiao Xie³, Shayu Li⁵, Guoqiang Yang⁶

Affiliations

¹ School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, PR China. Electronic address: liuxuan1987@iccas.ac.cn.
² Sichuan Key Laboratory of Medical Imaging & Department of Chemistry, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, 637000, PR China.
³ School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, PR China.
⁴ Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China.
⁵ School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, PR China. Electronic address: shayuli@iccas.ac.cn.
⁶ Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China. Electronic address: gqyang@iccas.ac.cn.

PMID: 31987160
DOI: 10.1016/j.talanta.2019.120630

Abstract

Noncontact ratiometric fluorescent thermometers have received great interests in recent years. Besides being a sensitive and easily observable detection signal, the ratiometric dual fluorescence are also highly accurate and resistable to interference. However, organic molecular thermometers with such fluorescence property are very rare, and their measurement ranges and colors are limited. In this work, a series of ratiometric dual fluorescent tridurylboron thermometers, with tunable measurement ranges and colors, are designed and synthesized. The measurement ranges of the thermometers are -20 °C-40 °C, -10 °C-50 °C and -25 °C-30 °C in solid polymeric systems, and -50 °C-100 °C and -30 °C-110 °C in liquid organic solvent. With decreasing temperature, the fluorescence colors of tridurylboron-MOE thermometers are from green yellow to yellow red, green to green yellow, blue to green. This study provides a novel strategy for developing tunable ratiometric dual fluoresence organic molecular thermometers.

Keywords: Intramolecular charge-transfer; Ratiometric dual fluorescence thermometer; Temperature indicator; Tridurylboron; Tunable temperature measurement range.