A computationally efficient alternative to the Buckingham potential for molecular mechanics calculations.

This paper describes a (6-8) variant of the Lennard-Jones (6-12) potential, for computing the energy of non-bonded interactions in molecular mechanics calculations, which combines the overall precision of the Buckingham (6-exp) potential with the computational efficiency of the standard Lennard-Jones (6-12) potential. There is also a note on the radius of convergence of the full matrix Newton-Raphson optimization procedure.