What would be the wave function of the lowest energy molecular orbital of a hypothetical linear H3+ molecule? According to the LCAO method, I feel the lowest energy MO will be 1s(A) + 1s(B) + 1s(C). Where 1s(A) is the wave function of the 1s orbital of one of the Hydrogen atoms. This has 0 nodes and has the lowest energy.
Isn't this correst?