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机构地区:[1]大连理工大学精细化工国家重点实验室
出 处:《大连理工大学学报》1997年第5期538-541,共4页Journal of Dalian University of Technology
基 金:国家自然科学基金
摘 要:合成了含手性原子的中间体及六个希夫碱,测试了旋光度和吸收光谱.含手性原子的化合物均有旋光值.所合成的样品最大吸收波长λmax为329.2~372.8nm.采用固体粉末法测试了样品的SHG效应,其中两个品种具有SHG活性.Six kinds of chiral Schiff bases have been synthesized by the condensation of chiral aromatic amine and aromatic aldehyde. The absorption curves of UV visible have been measured and it is found that their maximum absorption wavelengths are all in the ultraviolet region. The absorption wavelength of Schiff bases compounds causes red shift with the weak electron donor group on the aromatic amine ring and the electron acceptor group on the aromatic aldehyde ring. The second harmornic generation of synthesized compounds have been measured by the powder method and it is found that two samples possess SHG activity.
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