9

Cr  -0.916627 -0.0772809 -1.307
Cr  0.916627 -0.0772809 1.307
O   0 -0.789904 -1.77636e-15
O   -2.01277 -1.06769 -1.79605
O   2.01277 -1.06769 1.79605
O   -1.56126 1.35758 -0.744121
O   1.56126 1.35758 0.744121
O   0.0326396 0.18234 -2.53479
O   -0.0326396 0.18234 2.53479