3008-77-3Relevant academic research and scientific papers
Color-tunable arylaminoanthraquinone dyes through hydrogen-bond-assisted charge transfer interaction
Takeda, Takashi,Kasahara, Yotaro,Akutagawa, Tomoyuki
, p. 24217 - 24231 (2021)
We prepared a series of arylaminoanthraquinone derivatives, including those with electron-accepting sulfone units and/or with electron-donating dialkylamino units. A color-tunable anthraquinone library that reached into the NIR region could be prepared through the precise control of frontier orbitals. Fine color-tuning was achieved through proper selection and positioning of the substituents. Effective intramolecular hydrogen-bond-assisted charge transfer interaction between electron-donating aniline/p-phenylenediamine and electron-accepting anthraquinone substructures induced a significant bathochromic shift of anthraquinone. The number and position of the substituents and the molecular conformation also significantly contributed to determining photophysical properties.
