摘要
A series of amphiphilic azo-methine dyes with different relative positions of electron-accepting groups, (E)-N-octadecyl-2-［2-(4-N,N-dimethylaminophenyl)azomethinyl］quinolinium iodide(QN2), (E)-N-octadecyl-4-［2-(4-N,N-dimethylaminophenyl)azomethinyl］quinolinium iodide(QN4) and (E)-N-octadecyl-6-［2-(4-N,N-dimethylaminophenyl)azomethinyl］ quinolinium iodide(QN6) were synthesized. These dye molecules were successfully transferred onto quartz by Langmiur-Blodgett(LB) technique. We studied the second-harmonic generation(SHG) of their monolayers and found that the effect of relative position of acceptor group on SHG can not be negligible.
A series of amphiphilic azo methine dyes with different relative positions of electron accepting groups, ( E) N octadecyl 2 [2 (4 N,N dimethylaminophenyl)azomethinyl]quinolinium iodide(QN2), ( E) N octadecyl 4 [2 (4 N,N dimethylaminophenyl)azomethinyl]quinolinium iodide(QN4) and ( E) N octadecyl 6 [2 (4 N,N dimethylaminophenyl)azomethinyl] quinolinium iodide(QN6) were synthesized. These dye molecules were successfully transferred onto quartz by Langmiur Blodgett(LB) technique. We studied the second harmonic generation(SHG) of their monolayers and found that the effect of relative position of acceptor group on SHG can not be negligible.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第4期648-650,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
LB膜
二阶非线性光学性质
西佛碱染料
Azo methine dye
LB monolayer film
Second harmonic generation
χ (2) zzz
