A twisted-intramolecular-charge-transfer (TICT) based ratiometric fluorescent thermometer with a mega-Stokes shift and a positive temperature coefficient
2014; Royal Society of Chemistry; Volume: 50; Issue: 99 Linguagem: Inglês
10.1039/c4cc08010f
ISSN1364-548X
AutoresCheng Cao, Xiaogang Liu, Qinglong Qiao, Miao Zhao, Wenting Yin, Deqi Mao, Hui Zhang, Zhaochao Xu,
Tópico(s)Luminescence and Fluorescent Materials
ResumoThe fluorescence intensity of N,N-dimethyl-4-((2-methylquinolin-6-yl)ethynyl)aniline exhibits an unusual intensification with increasing temperature, by activating more vibrational bands and leading to stronger TICT emissions upon heating in dimethyl sulfoxide. Based on the different temperature dependence at various wavelengths, as shown in the TICT fluorescence spectrum, this dye can be employed to ratiometrically detect temperature.
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