Circular Dichroism and Optical Rotatory Dispersion Spectra of Poly[γ-(1-naphthylmethyl)-L-gIutamate] and Its Charge-transfer Complex
作者:Masahiro Hatano、Takamichi Enomoto、Ichi Ito、Michio Yoneyama
DOI:10.1246/bcsj.46.3698
日期:1973.12
chlorohydrin solution. In the charge-transfer complex, a circular dichroism band could be observed at the wavelength corresponding to that of the charge-transfer band in the absorption spectrum of the complex. From the results, it was confirmed that the charge-transfer complex contains α-helix structure of this polypeptide. The temperature dependence of the charge-transfer complex formation was discussed
合成了聚-γ-(1-萘基甲基)-L-谷氨酸,并通过圆二色性和吸收光谱的测量分析了其结构。当聚合物圆二色光谱中 219 nm 处的圆二色带可归于聚合物肽主链中 n-π* 跃迁的带时,计算出聚合物中右手螺旋的含量为约 54% 的乙烯氯醇溶液。还发现该多肽可以在乙烯氯醇溶液中与有机电子受体形成电荷转移复合物。在电荷转移复合物中,在复合物吸收光谱中与电荷转移带波长相对应的波长处可以观察到圆二色带。从结果来看,证实电荷转移复合物含有该多肽的α-螺旋结构。根据形成常数和热力学讨论了电荷转移络合物形成的温度依赖性。