摘要
通过振动光谱的频率参数，结合构象与键级的关系，观测了芳香酯液晶分子（一种高分子液晶模型化合物）在相态变化过程中的构象结构变化。认为这种液晶化合物在由晶态到液晶态的变化过程中是从酯基与苯环呈相互垂直状态到酯基与Ａ环是共平面状态而与Ｂ环不共平面即垂直的状态。
The conformational structure variation of the aromatic core in the aromatic liquidcrystalline molecules, RO-C6H4COO-C6H4OOCC6H4OR, macromolecular model compound,during phase transition has been investigated by using vibrational spectral frequency parameter combining the relationship between con formation and bond order. The result shows thatthe con formation of the eseter group perpendicular to the plane of the aromatic rings changedto the ester linkage coplanar with the A benzene rings, but still perpendicular to the B benzene ring.
出处
《光谱学与光谱分析》
CSCD
北大核心
1994年第3期35-39,共5页
Spectroscopy and Spectral Analysis
基金
中科院高分子物理联合开放研究实验室科学基金
关键词
分子结构
分子构象
芳香酯
Conformational structure
Frequency parameter
Vibrational spectroscopy
