4

Be     -0.267801118022283     -0.131622904115849     -0.269737869478166
Be      1.562697841125360      1.420008828132503     -0.089747132734173
Be      1.761399983638549     -0.114489778565200      1.592436102602222
Be      0.253641778383597      1.242598723671699      1.628705014092203