A hemicyanine dye containing an amphiphilic rare earth complex anion 4-[(4-N,N’-(diethyl amino) phenyl) ethenyl]-1-hexadecyl-pyridinnium-Tri (1-phenyl-3-methylbeen designed, synthesized and characterized. Its floatin...A hemicyanine dye containing an amphiphilic rare earth complex anion 4-[(4-N,N’-(diethyl amino) phenyl) ethenyl]-1-hexadecyl-pyridinnium-Tri (1-phenyl-3-methylbeen designed, synthesized and characterized. Its floating monolayer film was spread bya dilute cliloroform solution onto the pure water subphase by using a NIMA TechnologyLB Though at room temperature. The π-A isotherm shows that the film formation property is improved and the multilayer films are homogeneous. The molecular second orderhyperpolarizability(β) is evaluated to be 5.4× 10-28e.s.u. which is one of largest SHG material reported.展开更多
Three kinds of new electrostatic self-assembled multilayer films were prepared with alternating adsorption of H3PMo12O40 and hemicyanine derivatives,and characterized with UV-visible absorption spectroscopy and cyclic...Three kinds of new electrostatic self-assembled multilayer films were prepared with alternating adsorption of H3PMo12O40 and hemicyanine derivatives,and characterized with UV-visible absorption spectroscopy and cyclic voltammetry.The results show that these films are vertically uniform and electrochemically active with surface-controlled behavior,and the charge transfer may occur between H3PMo12O40 and hemicyanine derivatives in the films.The electron transfer rates of the three films are derived to be 0.0027,0.0019 and 0.00066 s-1,respectively,which decrease with increasing the thickness of the hemicyanine layers in the films.展开更多
基金supported by the National Natural Science Foundation of China(21465021,21463023)Key Project of Ministry of Education,China(211189)+1 种基金Natural Science Foundation of Gansu Province,China(1208RJZE139)Program of Gansu Provincial University for Leaders of Disciplines in Science,China(11zx-04)~~
文摘A hemicyanine dye containing an amphiphilic rare earth complex anion 4-[(4-N,N’-(diethyl amino) phenyl) ethenyl]-1-hexadecyl-pyridinnium-Tri (1-phenyl-3-methylbeen designed, synthesized and characterized. Its floating monolayer film was spread bya dilute cliloroform solution onto the pure water subphase by using a NIMA TechnologyLB Though at room temperature. The π-A isotherm shows that the film formation property is improved and the multilayer films are homogeneous. The molecular second orderhyperpolarizability(β) is evaluated to be 5.4× 10-28e.s.u. which is one of largest SHG material reported.
文摘Three kinds of new electrostatic self-assembled multilayer films were prepared with alternating adsorption of H3PMo12O40 and hemicyanine derivatives,and characterized with UV-visible absorption spectroscopy and cyclic voltammetry.The results show that these films are vertically uniform and electrochemically active with surface-controlled behavior,and the charge transfer may occur between H3PMo12O40 and hemicyanine derivatives in the films.The electron transfer rates of the three films are derived to be 0.0027,0.0019 and 0.00066 s-1,respectively,which decrease with increasing the thickness of the hemicyanine layers in the films.
