通过光预激发提高光致变色吲哚基俘精酸酐的开环反应效率。
Increasing the efficiency of the ring-opening reaction of photochromic indolylfulgides by optical pre-excitation.
作者信息
Brust Thomas, Draxler Simone, Eicher Jonas, Lees Watson J, Rück-Braun Karola, Zinth Wolfgang, Braun Markus
机构信息
BioMolekulare Optik, Fakultät für Physik, Ludwig-Maximilians-Universität München and Center For Integrated Protein Science Munich (CIPSM), Oettingenstr. 67, D-80538 München, Germany.
出版信息
Chem Phys Lett. 2010 Apr 9;489(4-6):175-180. doi: 10.1016/j.cplett.2010.02.071.
Abstract
For three indolylfulgides the quantum efficiency of the ring-opening reaction upon pre-excitation is investigated in a multipulse experiment. The quantum efficiency grows by factor of up to 3.4, when the pre-excitation pulse immediately precedes the excitation process. The change in quantum efficiency after pre-excitation is discussed as a function of reaction time, steady-state quantum efficiency and energetic barriers in the excited electronic state. The observed differences can be explained by the molecular properties of the investigated indolylfulgides.
摘要
对于三种吲哚基俘精酸酐，在多脉冲实验中研究了预激发时开环反应的量子效率。当预激发脉冲紧接着激发过程时，量子效率提高了高达3.4倍。预激发后量子效率的变化作为反应时间、稳态量子效率和激发电子态中能垒的函数进行了讨论。观察到的差异可以用所研究的吲哚基俘精酸酐的分子性质来解释。
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