here we took advantage of the photophysical properties of cercosporin, and used it as a metal-free photocatalyst to develop an unprecedented cercosporin-driven photocatalysis under mild conditions. Furthermore, the forming conditions and excited-state dynamics of radical anions of cercosporin have been systematically investigated. In particular, transient femtosecond absorption spectroscopy was employed
由自然产生的
头孢菌素驱动的植物病原真菌Cercospora sp。感染过程的
生物启发在这里,我们利用了
头孢菌素的光物理性质,并将其用作不含
金属的光催化剂,在温和条件下开发了前所未有的
头孢菌素驱动的光催化。此外,对
头孢菌素自由基阴离子的形成条件和激发态动力学进行了系统的研究。特别是,采用瞬时飞秒吸收光谱法揭示了
头孢菌素的激发态动力学,这是决定其在光催化作用中的关键步骤。我们表明,尾孢菌素能够通过两步激发而被充分激活,从而最终提高了其光催化活性,从而以极低的反应性还原了底物。