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Electron transfer of water-soluble perylene diimide compound and long-life radical anion generation
Received date: 2017-04-18
Online published: 2020-09-03
A novel water-soluble perylene diimide compound, N,N'-di(polyethylene glycol)-1-(4-mercaptobenzene)-perylene-3,4,9,10-tetracarboxylic diimide (BFL), was synthesized by introducing PEG chains. Solvent-and temperature-dependent visible spectra were investigated and aggregation states were analysed. The results show that BFL in aqueous solution has only one absorption band at 530 nm, which is related to the ratio of monomer/aggregates. However, the change in the monomer/aggregates ratio with increasing concentration of BFL molecules is not obvious. Organic solvents and surfactants can disperse the compound, thereby significantly increasing the amount of the monomer. BFL can react with sodium sulfide in water;BFL is first reduced to anion radicals and then to dianions. The ability to produce a long-life free radical in the reduction reaction will make the BFL an excellent n-type material.
Key words： perylene diimide; PEG chains; electron transfer; anion radical
CHENG Zhengmin, ZHANG Jun, XING Feifei, ZHU Shourong . Electron transfer of water-soluble perylene diimide compound and long-life radical anion generation[J]. Journal of Shanghai University, 2020 , 26(4) : 570 -577 . DOI: 10.12066/j.issn.1007-2861.2218
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