4

Al     -0.134497887636506     -0.211973806835931      0.222770837519064
Al      1.810843766726636      1.808628102820145      0.195819204081889
Al      1.771850091681324      0.422596360843822      1.801262330459124
Al     -0.145975214142782      1.834963407668596      1.617071295819763