Abstract
Bay-substituted tetrachloro-perylene diimide dianion salt was synthesized facilely by using K2CO3 as reducing agent. The structure was confirmed by using a very thorough analysis based on the data from 1H NMR, 13C NMR, FT-IR and UV–vis spectra. Perylene diimide dianion salt shows high stable characteristic in the air or in some specific solutions such as acidic solution or oxidizing metal ion dissolved in deionized water under solid condition. However, the dianion converts slowly into corresponding radical and neutral perylene diimide in alkali solutions. Furthermore, the perylene diimide dianion salt has high HOMO and LUMO energy levels in comparison with that of corresponding neutral perylene diimide derivatives.
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