4

Mg     -0.054397412689487     -0.168218267152217      0.122630993553664
Mg      1.545304810457230      1.452060065285064      0.125932902742678
Mg      1.340007083765339     -0.100988089258220      1.418126451037361
Mg     -0.120065118812864      1.732128674492061      1.252947054936089