With the rapid development of science and experimental technology , especially the use of laser , the high overtones of some molecules can be assessed . on the other hand , with the appearance of highly symmetrical molecules , such as cm , plenty of research have been done about the big complicated molecules 隨著科學(xué)技術(shù)的日新月異,實(shí)驗(yàn)水平的不斷提高,特別是激光技術(shù)的引入,我們已經(jīng)能夠得到一些分子振動的高頻譜;另一方面隨著具有高度對稱性分子如c _ ( 60 )的發(fā)現(xiàn),人們對復(fù)雜大分子開始了大量的研究。