Title
Axial chiral binaphthalene-diketopyrrolopyrrole dyads as efficient far-red to near-infrared circularly polarized luminescent emitters
Author
Tingting Gao, Zhiyong Jiang, Bai Chen, Qian Sun, Yasin Orooji, Ling Huang, Zhipeng Liu
Year
2020
Journal
Dyes and Pigments
Abstract
In this paper, two axial chiral binaphthalene-diketopyrrolopyrrole dyads were developed as far-red to near-infrared circularly polarized luminescent materials. The dyads were obtained by conjugating of enantiopure binaphthalene with diketopyrrolopyrrole. The obtained dyads exhibited intense circularly polarized luminescence across far-red to near-infrared with high quantum yields (41–43%) and moderate luminescence dissymmetry factors (4.5–5.8 × 10−4). The photophysical properties of these dyads were rationalized through electrochemical and theoretical studies. These results clearly demonstrated the integration of binaphthalene with far-red or near-infrared fluorophore as an efficient approach for the construction of chiral binaphthalene derivates with far-red or near-infrared circularly polarized luminescence.
Instrument
J-810, CPL-300
Keywords
Circular dichroism, Circularly polarized luminescence, Stereochemistry, Materials