def epsilon_Stiel_Thodos(Tc, Zc):
epsilon_k = <NUM_LIT>*Tc*Zc**<NUM_LIT><EOL>return epsilon_k<EOL>
r'''Calculates Lennard-Jones depth of potential-energy minimum.
    Uses Critical temperature and critical compressibility. CSP method by [1]_.

    .. math::
        \epsilon/k = 65.3 T_c Z_c^{3.6}

    Parameters
    ----------
    Tc : float
        Critical temperature of fluid [K]
    Zc : float
        Critical compressibility of fluid, [-]

    Returns
    -------
    epsilon_k : float
        Lennard-Jones depth of potential-energy minimum over k, [K]

    Notes
    -----

    Examples
    --------
    Fluorobenzene

    >>> epsilon_Stiel_Thodos(358.5, 0.265)
    196.3755830305783

    References
    ----------
    .. [1] Stiel, L. I., and George Thodos. "Lennard-Jones Force Constants
       Predicted from Critical Properties." Journal of Chemical & Engineering
       Data 7, no. 2 (April 1, 1962): 234-36. doi:10.1021/je60013a023