【摘要】 合成了双亲性席夫碱配体与Ｚｎ２＋、Ｃｄ２＋的配合物。用元素分析、红外光谱和紫外光谱对配合物进行了鉴定，以Ｌ—Ｂ技术得到了层状有序多层膜。ＬＢ膜的紫外可见吸收光谱表明膜中分子形成ＴＨ－聚集体，且具有特定取向。该膜在紫外光的照射下，膜内配体分子发生的烯醇－醌式结构转变能够提高分子的非线性极化率。该结果有利于这类配合物薄膜材料非线性光学性质研究。更多还原

【Abstract】 The complexes of Zn2+, Cd2+ with ligand containing Shiff base substituted by longhydrocarbon chain have been synthesized and confirmed by elementary analysis, IR andUV--Vis spectra. The monolayer properties of these compounds at the air/water interface wasdesdbed. The LB films were successfully deposited on various substrates by vertical leftingmethod. The pattens of low angle X-ray diffraction of the LB films showed that themultilayers occurs a well--defined layer structure. The H-aggregate state of the molecules inthe LB films was approved by UV-Vis absorption spectra. The molecular orientation wasmeasured by use of UV--Vis transmission linear dichromic determinations. The tilt angle of longaxies of Shiff base group relative to the substrate plane was calculated. The molecules of complexes in the LB films performed an ultrafast proton transfer which may be followed by aslower inversion from enol to quinoid conformation by irradiating with 365nm UV light. Thephotoisometrization process may influence on the nonlinear optical properties of the thin films,exhibiting larger second order nonlinear hyperpolarizabilities.更多还原