標題: Why is Indigo Photostable over Extremely Long Periods?
作者: Iwakura, Izumi
Yabushita, Atushi
Kobayashi, Takayoshi
電子物理學系
Department of Electrophysics
公開日期: 5-十一月-2009
摘要: This experimental work clarifies the mechanism for the Ultra-photostability of indigo carmine by direct observation of a transition state using a sub 5-fs laser pulse. The molecular structural changes during the photoexcited proton-transfer process were traced as the time-dependent instantaneous frequency of molecular vibrations. The mono-alcohol intermediate generated by proton transfer via stepwise path was found to be unstable, and it immediately reverted to indigo carmine. This regression to the reactant is the reason for the ultraphotostability of indigo over extremely long periods.
URI: http://dx.doi.org/10.1246/cl.2009.1020
http://hdl.handle.net/11536/6441
ISSN: 0366-7022
DOI: 10.1246/cl.2009.1020
期刊: CHEMISTRY LETTERS
Volume: 38
Issue: 11
起始頁: 1020
結束頁: 1021
顯示於類別:期刊論文


文件中的檔案:

  1. 000272854200004.pdf