Abstract: The title compound is a merocyanine dye.It is a promising photo-electric and nonlinear optical material.It is found that the dark and photo conductivity in the polycrystalline evaporated thin film of this dye is several hundred times higher than that in the amosphous evaporated thin film. But the dark and photo conductivity in the single crystal is higher than that in the polycrystalline evaporated thin film.In this paper,the characterization,structure of single crystal and preparation of evaporated film of the dye were described.The relationship between structure and electronic conducting behaviour of this dye was investigated.This electronic conducting mechanism of the thin film was discussed.

Key words: cyrstalline state, evaporate film structurel electric properties, electronic conducting mechanism