1. Weiss, A. W.: Astrophysic. J. 138, 1262 (1963).
2. Mulliken, R. S.: J. Amer. chem. Soc. 86, 3183 (1964).
3. Although another valence configuration can be constructed [(1a?1)2 (2a?1)1 (e?)4 (a?'2)2], since this corresponds to a 2p?2s promotion, which requires 7.9 eV [10] for carbon, it would occur at such high energies in CH3 that it is unlikely a state exists that can be represented by such a configuration. In any case, we are interested in the lower energy states in this investigation.
4. Herzberg, G.: Proc. Roy. Soc. (London) A 262, 291 (1961).
5. Padgett, A., Krauss, M.: J. chem. Physics 32, 189 (1960).