Conformation change significantly affected the optical and electronic properties of arylsulfonamide-substituted anthraquinones
作者:Takashi Takeda、Tomoyuki Akutagawa
DOI:10.1039/d0cc04611f
日期:——
Drastic changes in the optical and electronic properties of arylsulfonamide-substituted anthraquinones were induced by simple N-methylation. N-Methylation at the congested peri-position of the anthraquinone unit induced a drastic conformational change from a coplanar arrangement to an orthogonal relationship between the anthraquinone scaffold and arylsulfonamide substituents. As a result, the contribution
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 frontierorbitals. Fine color-tuning was achieved through proper selection and positioning of the substituents. Effective