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  • Ratiometric dual fluorescence tridurylboron thermometers with tunable measurement ranges and colors.

Ratiometric dual fluorescence tridurylboron thermometers with tunable measurement ranges and colors.

Talanta (2020-01-29)
Xuan Liu, Jun Liu, Hu Zhou, Manling Yan, Canjun Liu, Xudong Guo, Jiao Xie, Shayu Li, Guoqiang Yang
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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Perhydroisoquinoline, 96%
Sigma-Aldrich
2,2-Dimethylmorpholine, AldrichCPR