锂同位素的盐能通过与冠醚或穴醚生成络合物,导致有效的同位素分离,因而引起重视。近年Jepson及其同事和艾克正等求得了较高的分离因数。何少琪等曾研究高氯酸锂四种冠醚络合物的同位素取代物,观察其远红外光谱的同位素位移,获得了符合由折合质量计算的结果。作者在本实验中,制备了二种新的锂盐冠醚络合物,观察了五种锂盐冠醚络合物及一种锂盐的远红外光谱的同位素位移,并作讨论,为进一步研究提供线索。 Salts of lithium isotopes attract attention by generating complexes with crown ethers or cryptands, resulting in efficient isotope separation. In recent years, Jepson and his colleagues and Ike are waiting for a higher separation factor. He Shaoqi et al. Studied the isotopic substitution of four crown ether complexes of lithium perchlorate and observed the isotope shifts of its far-infrared spectra to obtain the results that accord with the calculated equivalent mass. In this experiment, we prepared two new lithium salt crown ether complexes, observed the isotope shifts of far-infrared spectra of five lithium salt crown ether complexes and one lithium salt, and discussed for further Research provides clues.