Substituents modification of meso-aryl BODIPYs for tuning photophysical properties |
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Authors: | Sangwon Ko Cheul Yong Kim Kongara Damodar Hyun Min Lim Jin Ho Kim Chang-Hee Lee Jeong Tae Lee |
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Institution: | 1. Transportation Environmental Research Team, Korea Railroad Research Institute, Uiwang 16105, Republic of Korea;2. Department of Chemistry and Institute of Applied Chemistry, Hallym University, Chuncheon 24252, Republic of Korea;3. Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea |
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Abstract: | We successfully synthesized eight meso-aryl BODIPYs with 2,6-diethyl- or 1,2,6,7-tetraethyl substituents and characterized their photophysical properties. The steric hindrance resulting from the phenolic group in the meso-aryl moiety and the ethyl groups on the BODIPY core affected the synthesis of dipyrromethanes as an intermediate as well as the UV–Vis absorption and fluorescence emission of the BODIPYs due to the constrained rotation of the aryl ring. The potential use of the meso-hydroxyphenyl BODIPY as a pH sensor was also shown by the pH-dependent fluorescence emissions. |
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Keywords: | BODIPY Fluorescent dye UV/Vis spectroscopy Fluorescence spectroscopy pH sensor |
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