Normal coordinates in the methyl halides

King, W. T., Mills, I. and Crawford, Jnr., B. (1957) Normal coordinates in the methyl halides. The Journal of Chemical Physics, 27 (2). pp. 455-457. ISSN 0021-9606 doi: 10.1063/1.1743745

Abstract/Summary

The potential‐energy functions found by Chang for the methyl halides have been put into valence‐type form and revised to eliminate inconsistencies and to accord with the true (nontetrahedral) geometry and the normal frequencies (corrected for Fermi resonance and anharmonicity). The resulting valence‐type force constants and normal coordinates are given for light (CH3) and heavy (CD3) chlorides, bromides, and iodides.