4

Zr      0.284753220665902     -0.016585345530311      0.109891359719637
Zr      1.455873452962856      1.242675480872723      0.067292280371926
Zr      1.326074188834219     -0.226714098742205      1.570226211948487
Zr      0.105371011747700      1.206411897992733      1.767676374931868