source leaprc.ff96
h1=loadpdb mN2.pdb
bond h1.124.SG h1.129.SG
bond h1.175.SG h1.193.SG
bond h1.183.SG h1.230.SG
bond h1.232.SG h1.237.SG
bond h1.278.SG h1.291.SG
bond h1.280.SG h1.289.SG
bond h1.318.SG h1.337.SG
bond h1.421.SG h1.447.SG
solvateBox h1 TIP3PBOX 8
saveamberparm h1 mN2W.top mN2W.crd
quit