Redox Potential Inversion by Ionic Hydrogen Bonding between Phenylenediamines and Pyridines
摘要:
In electrochemical oxidations, the second oxidation potential of phenylenediamines (PD) varies because of hydrogen-bonding formation for PD+center dot with pyridines. A linear relationship was obtained for the potential shift as a function of pK(a) of the protonated pyridines and potential inversion could be observed. The oxidized PD+center dot could also form hydrogen bonding with alcohols and the shift of potential exhibits a different pattern.
Polymer compound and polymer light-emitting device using the same
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20030165713A1
公开(公告)日:2003-09-04
A polymer compound comprising a repeating unit represented by formula (1) and a repeating unit represented by formula (2),
1
—Ar
6
— (2)
wherein, Ar
1
, Ar
2
and Ar
6
each independently represent an arylene group, a divalent heterocyclic compound group, etc.; Ar
3
is an arylene group, arylene vinylene group, or a divalent heterocyclic compound group; Ar
4
and Ar
5
are each independently an aryl group or a monovalent heterocyclic compound group. The polymer compound has excellent characteristics of strong fluorescence and large charge transporting property.
Redox Potential Inversion by Ionic Hydrogen Bonding between Phenylenediamines and Pyridines
作者:Yi-Chun Chung、Yi-Jung Tu、Shih-Hua Lu、Wan-Chi Hsu、Kuo Yuan Chiu、Yuhlong Oliver Su
DOI:10.1021/ol2007764
日期:2011.6.3
In electrochemical oxidations, the second oxidation potential of phenylenediamines (PD) varies because of hydrogen-bonding formation for PD+center dot with pyridines. A linear relationship was obtained for the potential shift as a function of pK(a) of the protonated pyridines and potential inversion could be observed. The oxidized PD+center dot could also form hydrogen bonding with alcohols and the shift of potential exhibits a different pattern.