Efficient Iron/Copper Cocatalyzed N-Arylation of Arylamines with Bromoarenes
作者:Songlin Zhang、Xiaoyan Liu
DOI:10.1055/s-0030-1260534
日期:2011.5
Fe(acac)3 and Cu(OAc)2×H2O were found to effectively promote the C-N cross-coupling reaction in the presence of K2CO3 as the base. A series of diaryl amine with different substituents can be synthesized in moderate to good yields. This efficient and economic method is attractive for applications on an industrial scale.
A novel family of azobenzene-based photochromic amorphous molecular materials has been created. They were found to readily form amorphous glasses with well-defined glass-transition temperatures and to exhibit photochromism as amorphous films as well as in solution. It was found that their quantum yields of transâcis photoisomerization were smaller as amorphous films than in solution and that the backward cisâtrans thermal isomerization reactions as amorphous films were either accelerated or retarded relative to those in solution, depending upon their molecular structures. In addition, the rate acceleration for the cisâtrans thermal isomerization as amorphous films relative to solution was found to be more prominent as the irradiation time for generating the cis-isomer became shorter.
A new series of azobenzene-bridged metal-free organic dyes and application on DSSC
作者:Kuo Yuan Chiu、Thai Thi Ha Tran、Sheng Hsiung Chang、Te-Fang Yang、Yuhlong Oliver Su
DOI:10.1016/j.dyepig.2017.07.049
日期:2017.11
changed from methyl to methoxyl, a slight negative shift in the first oxidation peak could be observed. The spin density distribution of the cation radicals of the four dyes was also investigated. The qualitative order of the stability of these four cation radicals was found to be TA4 > TA3 > TA2 > TA1 in air. They were then employed as the sensitizer in organicdye-sensitizedsolarcells to achieve
741. Studies in peroxidase action. Part XI. The oxidation of a mixture of amines
作者:G. M. K. Hughes、B. C. Saunders
DOI:10.1039/jr9560003814
日期:——
Small anion-assisted electrochemical potential splitting in a new series of bistriarylamine derivatives: organic mixed valency across a urea bridge and zwitterionization
作者:Keishiro Tahara、Tetsufumi Nakakita、Alyona A Starikova、Takashi Ikeda、Masaaki Abe、Jun-ichi Kikuchi
DOI:10.3762/bjoc.15.220
日期:——
report the synthesis of a new bistriarylamine series having a urea bridge and investigate its mixed-valence (MV) states by electrochemical and spectroelectrochemical methods. We found that the supporting electrolytes had unusual effects on potential splitting during electrochemical behavior, in which a smaller counteranion thermodynamically stabilized a MV cation more substantially than did a bulky one