Tuning of Redox Potentials and LUMO Levels of BODIPYs via Site-Selective Direct Cyanation
作者:Huiquan Zuo、Qinghua Wu、Xing Guo、Zhengxin Kang、Jiangang Gao、Ying Wei、Changjiang Yu、Lijuan Jiao、Erhong Hao
DOI:10.1021/acs.orglett.3c03330
日期:2023.11.17
and stepwise cyanation of BODIPYs using tetrabutylammonium cyanide was developed to give α-cyanated BODIPY derivatives. Characterization of optical and electrochemical properties of these dyes provides substantial enhancement of the electron affinity, with a reduction potential and LUMO level as low as −0.04 V and −4.43 eV, respectively. Radical anions of these electron-deficient 3,5-dicyanated BODIPYs
通过强氧化剂Pb(OAc) 4促进氧化亲核氢取代,使用四丁基氰化铵对BODIPY进行位点选择性直接和逐步氰化,得到α-氰化BODIPY衍生物。这些染料的光学和电化学性质的表征提供了电子亲和力的显着增强,还原电势和 LUMO 水平分别低至 -0.04 V 和 -4.43 eV。这些缺电子 3,5-二氰化 BODIPY 的自由基阴离子通过吸收光谱和 EPR 光谱进行了表征。