Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617.
Org Lett. 2012 Aug 17;14(16):4154-7. doi: 10.1021/ol3018193. Epub 2012 Aug 2.
A light-driven molecular brake displaying an antilock function is constructed by introducing a nonradiative photoinduced electron transfer (PET) decay channel to compete with the trans (brake-off) → cis (brake-on) photoisomerization. A fast release of the brake can be achieved by deactivating the PET process through addition of protons. The cycle of irradiation-protonation-irradiation-deprotonation conducts the brake function and mimics the antilock braking system (ABS) of vehicles.
通过引入非辐射光致电子转移（PET）衰减通道来与反式（刹车松开）→顺式（刹车开启）光异构化竞争，构建了具有防抱死功能的光驱动分子刹车。通过添加质子来使 PET 过程失活，可以快速释放刹车。辐照-质子化-辐照-去质子化的循环控制刹车功能，模拟了车辆的防抱死制动系统（ABS）。
