[gmx-users] Morse potential

[Ting Zheng]

Dear GMX Users,

As known that the morse potential in gromacs has a format of [image: V(r) =
D_e ( 1-e^{-a(r-r_e)} )^2]. But in my system , a value of -De should be
added in the system and the final format of the morse potential should be
like [image: V(r) = D_e (( 1-e^{-a(r-r_e)} )^2 -1)]. So my question is how
and where should modify the files that could add this constant value to the
morse potential ?  Many Thanks

Ting