def _parse_nonbon_line( line ):
    """Parse an AMBER frcmod nonbon line and return relevant parameters in a dictionary. AMBER uses rmin_half and epsilon in angstroms and kilocalories per mole."""
    tmp = line.split()
    params = {}
    params['smirks'] = tmp[0]
    params['rmin_half'] = tmp[1]
    params['epsilon'] = tmp[2]

    return params