This appendix contains some of the notations and conventions used in molecular spectroscopy recommended by various international organizations, including the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP).
Table A.1. Notations and conventions used in molecular spectroscopy [37][36][42][43][44].
[a] The symbols J ^ a [Lefebvre-Brion, p. 72; Brown, p. 229; Atkins, p. 320; Struve, p. 144; Herzberg] and j ^ [41] are both used for the total electronic angular momentum. Neither are a part of a uniform recommendation [37][36][42][43][44].
[b] The symbol O ^ [Lefebvre-Brion, p. 72] is not part of a uniform recommendation [37][36][42][43][44]. ______________________________________________________________________________________________________________________