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
Sb substituted Sm 2Fe 17-x Sb x materials have been synthesized by using modified reduction diffusion process with superfine Fe metal powder as a starting material. This synthetic route is unique and particularly usef...Sb substituted Sm 2Fe 17-x Sb x materials have been synthesized by using modified reduction diffusion process with superfine Fe metal powder as a starting material. This synthetic route is unique and particularly useful for the intermetallic compounds containing high volatile component. The substitution of Sb to the Sm 2Fe 17 significantly enhances the magnetic interaction between Fe atoms, which in turn, increases the Curie temperature of the materials. In addition, the chemical stability of Sm 2Fe 17 can also be improved by Sb substitution.展开更多
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Sb substituted Sm 2Fe 17-x Sb x materials have been synthesized by using modified reduction diffusion process with superfine Fe metal powder as a starting material. This synthetic route is unique and particularly useful for the intermetallic compounds containing high volatile component. The substitution of Sb to the Sm 2Fe 17 significantly enhances the magnetic interaction between Fe atoms, which in turn, increases the Curie temperature of the materials. In addition, the chemical stability of Sm 2Fe 17 can also be improved by Sb substitution.
基金National Key Research and Development Program of China(2016YFB0901600)National Natural Science Foundation of China(51972326,51672295,21871008,51672301)+1 种基金Science and Technology Commission of Shanghai(18YF1427200)The Key Research Program of Chinese Academy of Sciences(QYZDJ-SSW-JSC013)。
