Preferred Label : multiplicity;
Detailed label : multiplicity (spin multiplicity);
IUPAC definition : The number of possible orientations, calculated as 2S 1, of the spin angular momentum
corresponding to a given total spin quantum number (S), for the same spatial electronic
wavefunction. A state of singlet multiplicity has S 0 and 2S 1 1. A doublet
state has S 1 2, 2S 1 2, etc. Note that when S L (the total orbital angular
momentum possible) there are only 2L 1 orientations of total angular momentum possible.;
Origin ID : M04062;
Automatic exact mappings (from CISMeF team)
- See also
The number of possible orientations, calculated as 2S 1, of the spin angular momentum
corresponding to a given total spin quantum number (S), for the same spatial electronic
wavefunction. A state of singlet multiplicity has S 0 and 2S 1 1. A doublet
state has S 1 2, 2S 1 2, etc. Note that when S L (the total orbital angular
momentum possible) there are only 2L 1 orientations of total angular momentum possible.
