Photochromism of a radical diffusion-inhibited hexaarylbiimidazole derivative with intense coloration and fast decoloration performance.
We report the synthesis and the photochromic behavior of a newly designed, photochromic, radical diffusion-inhibited hexaarylbiimidazole (HABI) derivative with markedly improved photochromic performance in coloration and decoloration rates as well as greater optical density in the colored state. The thermal bleaching rate (tau1/2 = 260 ms at 295 K) is the fastest among the reported ones for HABI derivatives.
Fujita
Kana
K
Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, Sagamihara, Kanagawa, Japan.
Hatano
Sayaka
S
Kato
Daisuke
D
Abe
Jiro
J