4

Ca     -0.054011784943252     -0.188169711294759      0.127083951054054
Ca      1.205017063303491      1.090065016726712      0.114417033305152
Ca      1.572457107794586      0.210757875816659      1.658969036875687
Ca      0.219044588997070      1.516746160488988      1.444548350669706