4

Pt     -0.223954279906408     -0.080841436857079      0.114018661803916
Pt      1.544752142281824      1.751774121627153      0.111381631775557
Pt      1.550039437731166     -0.030522467014321      1.292689572800855
Pt     -0.084488773401680      1.655583658685811      1.450373097099144