#

"""AMBER 99 Parameters."""
__author__ = "Randall J. Radmer"
__version__ = "1.0"

import simtk.unit as unit

# Set atomic parameters for chloride ions
mass_Cl    = 35.45   * unit.dalton     # Same as unit.Quantity(35.45, dalton)
sigma_Cl   = 4.401   * unit.angstrom   # Same as unit.Quantity(4.401, angstrom)
epsilon_Cl = 0.1     * unit.kilocalorie_per_mole
q_Cl       =-1.0     * unit.elementary_charge

# Set atomic parameters for sodium ion
mass_Na    = 22.99   * unit.dalton     # Same as unit.Quantity(22.99, dalton)
sigma_Na   = 3.328   * unit.angstrom   # Same as unit.Quantity(3.328, angstrom)
epsilon_Na = 0.00277 * unit.kilocalorie_per_mole
q_Na       = 1.0     * unit.elementary_charge