Computational Chemistry 4.13 - Spin Integration

[@mennaemam1971]

Hello, what is the i/2 subscript notation refer to? Why is not it just i?

[@qammaralmas8915]

As I understand, i/2 represents half of the i terms because half of the i electrons have spin up (alpha) and the other half have spin down (beta).

[@b6kf367]

I think there's a missing (i+1)/2 in the first row

[@seitdrs2467]

Hi, can it be assumed that the spatial orbitals are always represented by the chemist's notation or does a physicists notation exist as well. What is the convention?

[@TMPChem]

As far as I know, a two-electron integral within parentheses always indicates spatial orbitals in chemist's notation.

[@apburner1]

First.