The Mean Amplitudes of Thermal Vibrations in Polyatomic Molecules. I. CF2dblbnd;CF2and CH2dblbnd;CF2

摘要

A normal coordinate treatment based on the potential function of Ureyhyphen;Bradley type has been applied to CF2dblbnd;CF2and CF2dblbnd;CH2molecules by taking into account the repulsions between nonbonded atoms in addition to the valence force field. The meanhyphen;square amplitudes of thermal vibration of the atomic distances in these molecules have been calculated by the use of the normal coordinates and compared with those obtained by I. Karle and J. Karle from the electron diffraction investigation.