4

U      -0.251599878586032      0.242174566523434      0.042707301026827
Zr      1.634806827461074      1.233240644101652      0.123242161029637
U       1.746675175349589      0.114782369561972      1.216210135635732
Zr     -0.102125627420407      1.622910599953509      1.444120053782587