Anions minimization
 &cntrl
     IGB=5,
     CUT=10,
     NTR = 1,
     NTMIN = 0,
     MAXCYC = 500,
     NTPR = 100,
     NTb=0,
     IMIN = 1
 &end
Group input for restrained atoms
100.0
RES 1 239
END
END