Temperature-sensitive triarylboron compounds based on naphthalene substituents
Abstract
Since temperature is one of the most important physical parameters, it is of great significance to measure temperature with high space resolution and accuracy. Herein, a series of π-conjugated triarylboron compounds with temperature sensitivity based on naphthalene aromatic groups were designed and synthesized. Their photophysical properties were studied in detail by steady state absorption, emission spectroscopy and time-dependent density functional theory calculation. As the temperature increased, their emission spectra exhibited obvious blue shifts in liquid organic solvent, making ratiometric fluorescence sensing of temperature achievable.
- Publication:
-
Spectrochimica Acta Part A: Molecular Spectroscopy
- Pub Date:
- February 2020
- DOI:
- 10.1016/j.saa.2019.117648
- Bibcode:
- 2020AcSpA.22617648P
- Keywords:
-
- Triarylboron compounds;
- Naphthalene substituted compounds;
- Temperature indicator;
- Dual fluorescence thermometer;
- Fluorescence chromogenic sensor