Abstract
Here, by assembling hydrophilic ethoxy linker, fluorene and methyl 2-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-2-phenylacetate (MIPA) unit, two π-conjugated amphiphilic molecules o-1 and o-2 were synthesized. They exhibited changeable absorption and fluorescent properties in mixed H2O/THF solvent. By tailoring water concentration and manipulating chiral MIPA blocks, maximum circularly polarized luminescence (CPL) dissymmetry factor (glum value) was achieved at 95% water concentration for o-2 compound, which is about 20 times larger than the lowest glum value in 20% water concentration for o-1 compound. Results are well interpreted by the static and time-dependent (TD) density functional calculations. Additionally, o-1 and o-2 compounds can serve as good amphiphilic systems for co-assembling achiral luminescent and chiral units.
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