Predicting spectra, part II: a graphical method for the prediction of the fundamental vibration frequencies of polyatomic molecules

It. has always been the desire of spectroscopists to find a method of predicting spectra# Throughout the years much time has been spent on this problem. The result has been a complex mathematical explanation of vibration, rotation and electrical transitions called quantum mechanics. Unfortunately the mathematics involved is almost incomprehensible without thorough and time consuming study. For this reason it was felt desirable to find a semi-empirical function which would serve as an everyday tool for use in the laboratory without extensive calculations or preparation. Such an uncomplicated function should rely on readily available constants.