4

Ga      0.284607123775581     -0.207266634397431     -0.002175066615964
As      1.277156866889753      1.033167152103339     -0.068011059040130
Ga      1.327431175023572     -0.131983409627773      1.220698521943007
As      0.118939421408867      1.034110384346971      1.338855195510961