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Effects of Azo Bridge and Substituents on the Electrochemical and Spectral Properties of Bis(triarylamine)s
Author(s) -
Chiu KuoYuan,
Chung YiChun,
Su Yuhlong Oliver
Publication year - 2006
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200600187
Subject(s) - chemistry , electrochemistry , electron transfer , spectral properties , electron , photochemistry , electrode , computational chemistry , physics , quantum mechanics
4,4′‐Azo‐bis(triarylamine) derivatives with electron‐donating groups have been synthesized. Their spectral and electrochemical characteristics have been investigated. Their first and second oxidations exhibited different degrees of overlapping, depending on the electron‐donating groups at the para ‐position of the phenyl rings. The stability of the oxidation products was monitored with UV/VIS/NIR spectro‐electrochemical methods. The derivatives have much stronger IV‐CT bands in the near‐IR range. The spectral change reveals the number of electron transfer in the stepwise oxidation and the stability of the products.