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C12 H4 ,C18H6,C2 4 H8大环多炔化合物是以乙炔为基本单元 ,以乙烯为连接元构成 .利用量子化学PM 3方法进行分子构型的优化和频率分析 ,判断分子的稳定性
C12 H4, C18H6, C2 4 H8 macrocyclic acetylenic compounds are based on acetylene as the basic unit, ethylene as the connecting element.Using quantum chemistry PM 3 method to optimize the molecular configuration and frequency analysis to determine the stability of the molecule