source leaprc.gaff
loadamberparams /opt/conda/dat/leap/parm/frcmod.ions1lm_iod
loadoff ../urea/URA.lib
loadamberparams ../urea/urea.frcmod
loadoff ../amoniak/AMK.lib
loadamberparams ../amoniak/amoniak.frcmod
loadoff ../air/air.lib
loadamberparams ../air/air.frcmod
SYSTEM = loadpdb system_init.pdb
list
saveamberparm SYSTEM system.prmtop system.inpcrd
savepdb SYSTEM system.pdb
quit