UNITS NATURAL
COM ATOMS=1-7 LABEL=com
DISTANCE ATOMS=1,com LABEL=d1
UPPER_WALLS ARG=d1 AT=2.0 KAPPA=100.
DISTANCE ATOMS=2,com LABEL=d2
UPPER_WALLS ARG=d2 AT=2.0 KAPPA=100.
DISTANCE ATOMS=3,com LABEL=d3
UPPER_WALLS ARG=d3 AT=2.0 KAPPA=100.
DISTANCE ATOMS=4,com LABEL=d4
UPPER_WALLS ARG=d4 AT=2.0 KAPPA=100.
DISTANCE ATOMS=5,com LABEL=d5
UPPER_WALLS ARG=d5 AT=2.0 KAPPA=100.
DISTANCE ATOMS=6,com LABEL=d6
UPPER_WALLS ARG=d6 AT=2.0 KAPPA=100.
DISTANCE ATOMS=7,com LABEL=d7
UPPER_WALLS ARG=d7 AT=2.0 KAPPA=100.

c1: COORDINATIONNUMBER SPECIES=1-7 MOMENTS=2-3 SWITCH={RATIONAL R_0=1.5 NN=8 MM=16} 

METAD ARG=c1.* HEIGHT=0.05 PACE=50 SIGMA=0.1,0.1 GRID_MIN=-1.5,-1.5 GRID_MAX=2.5,2.5 GRID_BIN=500,500 BIASFACTOR=5

# PRINT ARG=c1.* FILE=colvar STRIDE=100

