The RHF/4-21G energy of For-L-Ala-L-Ala-NH has been calculated on a 4-dimensional grid of constant values of , , , and as described in M. Ramek, C.-H. Yu, and L. Schäfer, Can. J. Chem. 76, 566-575 (1998).
The following interface can be used to retrieve the energies of
the individual grid points.