4

Pb      0.296983384521740      0.228804379350143     -0.071900112323156
Pb      1.640382705853984      1.308371026768350     -0.106174675605396
Pb      1.642505994877621      0.213030677950433      1.499762678041265
Pb     -0.022195013799448      1.708577230987624      1.705246955577712