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Hi,
I want to understand gmx ff parameters written in the abbreviations attached below. Can someone provide me some link explaining each of these short forms and what does these values refer to. Also how can i calculate these values from available PDB/Sdf files?
defaults
nbfunc comb-rule gen-pairs fudgeLJ fudgeQQ
atomtypes
name at.num mass charge ptype sigma epsilon sigma_14 epsilon_14
bondtypes
i j func b0 Kb
angletypes
i j k func th0 cth S0 Kub
dihedraltypes
i j k l func phi0 cp mult