[ atomtypes ]
;name   bond_type     mass     charge   ptype   sigma         epsilon       Amb
 ca       ca         12.01000  0.00000   A     3.31521e-01   4.13379e-01 ; 1.86  0.0988
 ha       ha          1.00800  0.00000   A     2.62548e-01   6.73624e-02 ; 1.47  0.0161
 c        c          12.01000  0.00000   A     3.31521e-01   4.13379e-01 ; 1.86  0.0988
 o        o          16.00000  0.00000   A     3.04812e-01   6.12119e-01 ; 1.71  0.1463
 ns       ns         14.01000  0.00000   A     3.26995e-01   4.91202e-01 ; 1.84  0.1174
 hn       hn          1.00800  0.00000   A     1.10650e-01   4.18400e-02 ; 0.62  0.0100
 c3       c3         12.01000  0.00000   A     3.39771e-01   4.51035e-01 ; 1.91  0.1078
 h1       h1          1.00800  0.00000   A     2.42200e-01   8.70272e-02 ; 1.36  0.0208
 hc       hc          1.00800  0.00000   A     2.60018e-01   8.70272e-02 ; 1.46  0.0208
 opls_069   mC3      15.03500  0.00000   A     3.91000e-01   6.69440e-01
 opls_071   mC2      14.02700  0.00000   A     3.90500e-01   4.93712e-01
 opls_073   mCH      13.01900  0.00000   A     3.85000e-01   3.34720e-01