Letter
Photochromism of a Radical Diffusion-Inhibited Hexaarylbiimidazole Derivative with Intense Coloration and Fast Decoloration Performance
Abstract

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 (τ1/2 = 260 ms at 295 K) is the fastest among the reported ones for HABI derivatives.
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History
- Published In Issue July 17, 2008
- Article ASAPJune 19, 2008
- Received: May 21, 2008
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