ZORA and ECP


Click here for full thread
Forum Vet
It could lead to double counting of relativistic effects as the ECP effectively incorporates the expansion and contraction of valence orbitals.

Bert

Quote: Sep 22nd 10:45 am
Dear all,

I have accidentally run a calculation where I used ECP and ZORA at the same time. Is this combination allowed from a physical point of view ? Or would it just lead to spurious results ?[/quote]