4

Zr      0.293337155494949     -0.269418687534491      0.073894147849037
Zr      1.456892662720655      1.405567987615605     -0.199900096565451
Zr      1.398031866325927      0.228219376437995      1.714825678086840
Zr      0.019371010636600      1.703113754027621      1.588239948066902