Question

the formula for determining multiplicity is question​

Answer 1

Explanation:

Spin multiplicity relation (2S+1) will be useful to find the multiplicity of a molecule.

You have to arrange the electron properly and find how many unpaired electrons are available (each one has +1/2). If no unpaired electron in a molecule then multiplicity will become 1(singlet). if 1 (+1/2) unpaired electron in a molecule then multiplicity will become 2 (doublet). like this goes on.....

In Gaussian, if you put a correct charge of the molecule it will calculate multiplicity automatically. But it will represent only doublet or singlet....

Hope it helps u...