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Cover Feature: Aggregation Behavior and Electron‐Transfer Reaction of Dendritic Perylene Bisimide, Accompanied by the Formation of Highly Stable Anionic Radical Species (Asian J. Org. Chem. 11/2017)
Author(s) -
Cheng Zhengmin,
Xing Feifei,
Bai Yueling,
Zhao Yongmei,
Zhu Shourong,
Li Mingxing
Publication year - 2017
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201700579
Subject(s) - chemistry , perylene , monomer , photochemistry , dimer , solvent , electron transfer , aqueous solution , polymer chemistry , ethylene glycol , electron paramagnetic resonance , photoinduced electron transfer , radical ion , organic chemistry , polymer , molecule , ion , physics , nuclear magnetic resonance
A colorful exchange : The concentration‐, solvent‐ and temperature‐dependent aggregation behaviors of poly(ethylene glycol)‐functionalized perylene bisimide (PEPBI) were analyzed. PEPBI exists as an aggregate dimer in aqueous solution or as a monomer in organic solvents. The reduction of PEPBI with Na 2 S is slow and the monoanion radical and dianion species are the main forms of monomer. PEPBI exists predominantly as a monomer in DMF and reacts with Na 2 S very fast (symbolized by the airplane shown in the cover image). The dianion species is EPR‐silent and its color highly depends on concentration in DMF. More information can be found in the Full Paper by Feifei Xing, Shourong Zhu et al. on page 1612 in Issue 11, 2017 (DOI: 10.1002/ajoc.201700334).
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