β-榄香烯及其银离子配合物的紫外及圆二色光谱研究

Study on the ultraviolet and CD spectra of β-elemene and its silver ion coordination complex

测定β-榄香烯及其银离子配合物的紫外吸收光谱及圆二色性,研究络合前后光谱特征峰的变化,并用分子轨道理论对β-榄香烯银离子的配位键的形成作出解释.结果表明:β-榄香烯与银离子能形成π配合物,形成配位化合物后,其紫外吸收光谱特征吸收峰红移(213nm→252nm)及圆二色性发生变化.从紫外光谱来看,β-榄香烯与硝酸银形成π配合物.

With the aim to investigate the interaction mechanis for coordinational complax consisting of β-elemene and silver ion, the Uv and CD spectra were measured before and after silver nitrate was added into β-elemene methanol solution . Both Uv and CD spectra of β-elemene were changed after β-elemene and Ag^＋ coordination complex was formed, β-elemene and silver ion can form π coordination complex.