液晶冠醚4—（烯丙基氧）—4′—（4′—羧基苯并—15—冠—5）联苯的变温红外光谱和拉曼光谱研究

本文用红外光谱法和激光拉曼光谱法研究了液晶冠醚４一（烯丙基氧）一４′一（４′一羧基苯并一１５一冠一５）联苯在升温时从结晶态到液晶态再到各向同住的液态相转变过程中红外光谱和拉曼光谱的变化。对该液晶冠醚的红外和拉曼特征频串进行了初步的经验式归属，并以频率位移、相对强度及峰形的变化描述了该化合物的相转变并初步讨论了相转变过程中光谱信息与分子结构的关系。

Infrared and Raman Spectroscopy Investigate of Liquid CrystaI Crown Ether 4（ω一allyloxy）一4′一（4′一carhoxybenzo一15一crown一5）biphenyl in heating Process

Infrared and Raman Spectral Changes of Liquid Crystal Crown Ether in Hcating process have been studied from the crystalline state to the liq-uid crystalline state， then to the liquid phase， Most of the interesting bands of liquid crystal crown ether were assiqned to correspondent chemical groups and vibration modes． Many bands show significant changes in the band frequencies and intensities during the phase transitions．The relation between spectroscop- ic characterization and molecular structures have been discussed.