Trans-4-(Dimethylamino)-4′-(diethylamino) stilbene(DMAEAS) has been synthesized and characterized by 1H NMR, IR and elemental analysis. The UV spectrum of the compound has been recorded. The single photon fluorescenc...Trans-4-(Dimethylamino)-4′-(diethylamino) stilbene(DMAEAS) has been synthesized and characterized by 1H NMR, IR and elemental analysis. The UV spectrum of the compound has been recorded. The single photon fluorescence spectrum of the compound under 370 nm excitation shows the presence of two bands at 420 nm and 438 nm, respectively.展开更多
On the basis of ZINDO program, we have designed a program to calculate the nonlinear second order polarizabilities β ijk and β μ according to the SOS equation. The second order nonlinear optical properties of diaza...On the basis of ZINDO program, we have designed a program to calculate the nonlinear second order polarizabilities β ijk and β μ according to the SOS equation. The second order nonlinear optical properties of diazadistyrene derivatives were studied. The calculated results reveal that the introduction of pyrimidine does not influence the transparency but give a rise to large values of β. For the corresponding stilbene derivatives, the effect of the location of pyrimidine on the values of β is greater.展开更多
文摘Trans-4-(Dimethylamino)-4′-(diethylamino) stilbene(DMAEAS) has been synthesized and characterized by 1H NMR, IR and elemental analysis. The UV spectrum of the compound has been recorded. The single photon fluorescence spectrum of the compound under 370 nm excitation shows the presence of two bands at 420 nm and 438 nm, respectively.
文摘On the basis of ZINDO program, we have designed a program to calculate the nonlinear second order polarizabilities β ijk and β μ according to the SOS equation. The second order nonlinear optical properties of diazadistyrene derivatives were studied. The calculated results reveal that the introduction of pyrimidine does not influence the transparency but give a rise to large values of β. For the corresponding stilbene derivatives, the effect of the location of pyrimidine on the values of β is greater.
