parm94 file his/trp nd-cc = na-cc;  cc-cb = cb-cn; cb-cb = c*-cb cc-hc = cw-h4

MASS
NE   14.01
CG   12.01
CH   12.01
HA   1.008
HN   1.008

BOND
NE-CG   422.000     1.385
CH-CH   388.000     1.459
CG-CH   447.000     1.371
CG-HA   367.000     1.080
CH-HA   367.000     1.080
NE-HN   434.000     1.010

ANGLE
CG-NE-CG    70.000   120.000
NE-CG-CH    70.000   120.000
CG-CH-CH    63.000   120.000
CG-NE-HN    30.000   120.000
NE-CG-HA    35.000   120.000
CH-CG-HA    35.000   120.000
CG-CH-HA    35.000   120.000
CH-CH-HA    35.000   120.000

DIHEDRAL
CH-CG-NE-CG   1       1.400     180.000       2.000
HA-CG-NE-CG   1       1.400     180.000       2.000
CH-CG-NE-HN   1       1.400     180.000       2.000
HA-CG-NE-HN   1       1.400     180.000       2.000
NE-CG-CH-CH   1       3.000     180.000       2.000
HA-CG-CH-CH   1       3.000     180.000       2.000
NE-CG-CH-HA   1       3.000     180.000       2.000
HA-CG-CH-HA   1       3.000     180.000       2.000
CG-CH-CH-HA   1       1.675     180.000       2.000
CG-CH-CH-CG   1       1.675     180.000       2.000
HA-CH-CH-HA   1       1.675     180.000       2.000

IMPROPER
NE-CG-HA-CH   1       1.100     180.000       2.000
CG-CH-HA-CH   1       1.100     180.000       2.000
CG-NE-CH-HA   1       0.000     180.000       2.000
CH-CG-CH-HA   1       0.000     180.000       2.000
NE-CG-CG-HN   1       0.000     180.000       2.000
HN-CG-CG-NE   1       0.000     180.000       2.000
CG-NE-HN-CG   1       1.000     180.000       2.000

NONBON
  NE         1.824     0.170
  HN         0.6000    0.0157
  HA         1.4870    0.0157
  CG         1.9080    0.0860
  CH         1.9080    0.0860