4

Zr      0.199897231195555      0.129611995968939     -0.125741409130357
Zr      1.657204064909161      1.265648460811395     -0.114923995409495
Zr      1.797684540097517     -0.017263093336998      1.078215523137404
Zr      0.170896112097038      1.470111238811570      1.202203182248776