4

Pb      0.157204064909161     -0.022234227643962     -0.114923995409495
Pb      1.797684540097517      1.432423807144198      0.156603392899812
Pb      1.670896112097038      0.127215832927180      1.192631721208324
Pb      0.262353385949982      1.205252950380992      1.710053546513952