iridium_6s = SlaterOrbital(
    principal_quantum_number=6,
    angular_momentum=0,
    slater_coefficients=[ 1.845*1/Bohr ],
    weights=[ 1.0 ]
    )

iridium_6p = SlaterOrbital(
    principal_quantum_number=6,
    angular_momentum=1,
    slater_coefficients=[ 1.574*1/Bohr ],
    weights=[ 1.0 ]
    )

iridium_5d = SlaterOrbital(
    principal_quantum_number=5,
    angular_momentum=2,
    slater_coefficients=[ 3.968*1/Bohr , 1.813*1/Bohr ],
    weights=[ 0.779916906177 , 0.370960477169 ]
    )

IridiumBasis = HuckelBasisParameters(
    element=PeriodicTable.Iridium,
    orbitals=[ iridium_6s , iridium_6p , iridium_5d ],
    occupations=[ 1.0 , 3.0 , 5.0 ],
    ionization_potential=[ -6.71*eV , -4.006*eV , -15.136*eV ],
    onsite_hartree_shift=[ 9.0*eV , 9.0*eV , 9.0*eV ],
    onsite_spin_split=[[-0.3007, -0.15168, -0.17745], [-0.15168, -0.5925, -0.05049], [-0.17745, -0.05049, -0.3517]]*eV,
    wolfsberg_helmholtz_constant=1.75,
    vacuum_level=0.0*eV,
    )