4

Ca      0.240050804274326     -0.128672726586535     -0.072222509652080
Ca      1.325306000347645      1.341714946635975      0.247099589870752
Ca      1.261754782629405     -0.090525193139691      1.726328896647008
Ca      0.251742210200064      1.617883931996993      1.436456626490302