Mutoh Katsuya, Moriyama Natsuho, Abe Jiro
Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
Chem Commun (Camb). 2023 Mar 7;59(20):2962-2965. doi: 10.1039/d2cc06942c.
The development of visible or near-infrared (NIR) light-responsive fast photoswitchable molecules for the real-time, non-contact control of physical and chemical properties has received increased attention because of the non-invasive features to materials and biological tissues. We report a new molecular design to accelerate the thermal back-reaction of the negative photochromic binaphthyl-bridged imidazole dimer, BN-ImD. We also found that irradiation of the BN-ImD derivative with methyl groups on the bridging binaphthyl unit with visible light produced an unprecedented photoreaction product with a unique eight-membered ring structure. These observations provide fascinating clues for the future development of fast negative photochromic molecules.
由于对材料和生物组织具有非侵入性特征，用于实时、非接触控制物理和化学性质的可见光或近红外（NIR）光响应快速光开关分子的开发受到了越来越多的关注。我们报道了一种新的分子设计，以加速负光致变色联萘桥联咪唑二聚体BN-ImD的热逆反应。我们还发现，用可见光照射桥联联萘单元上带有甲基的BN-ImD衍生物会产生一种前所未有的具有独特八元环结构的光反应产物。这些观察结果为快速负光致变色分子的未来发展提供了引人入胜的线索。
