121st General Meeting of the KCS

Type Poster Presentation
Area Organic Chemistry
Room No. Event Hall
Time 4월 19일 (목요일) 11:00~12:30
Code ORGN.P-312
Subject Substituents modification of meso-aryl BODIPYs for tuning photophysical properties
Authors Sangwon Ko*, Damodar Kongara1, Chang Hee Lee2, Jeong Tae Lee3,*
Transportation Environmental Research Team, Korea Railroad Research Institute, Korea
1Hallym University, Korea
2Department of Chemistry, Kangwon National University, Korea
3Department of Chemistry and Institute of Applied Chemistry, Hallym University, Korea
Abstract The highly sterically hindered meso-aryl BODIPY derivatives using ethyl 3,4-diethyl-1H-pyrrole-2-carboxylate or ethyl 3-ethyl-1H-pyrrole-2-carboxylate were synthesized and characterized. The steric hindrance resulting from the phenolic group in the meso-position and the ethyl groups at the 1,7 position affected the synthesis of dipyrromethanes as an intermediate as well as the UV absorption and fluorescence emission because of 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.
E-mail sko@krri.re.kr