Fcc Ir: a0=3.90 A, B0=340 GPa (exp: a0=3.84 A, B0=320 GPa)
Generated using the following data (espresso v 3.1):

 &input
        atom='Ir',
        rel=1,
        iswitch=3,
        rlderiv=2.50,
        eminld=-4.0,
        emaxld=4.0,
        deld=0.02,
        nld=5,
        config='[Xe] 4f14 5d7 6s2 6p0',
        dft='PBE'
 /
 &inputp
        pseudotype=3,
        lloc=0,
        file_pseudopw='Ir.pbe-n-rrkjus.UPF',
        nlcc=.true.,
        rcore=1.2,
        rcloc=2.5
 /
4
5D  3  2  7.00  0.00  2.10  2.40
5D  3  2  0.00 -0.20  2.10  2.40
6P  2  1  0.00  0.00  2.40  2.40
6S  1  0  2.00  0.00  2.60  2.60