18

Si          -0.220685   1.110122   0.000000
Si           0.220685  -1.110122   0.000000
Si          -0.124533  -2.205279   1.936080
Si           0.124533   2.205279   1.936080
Si          -0.124533   1.105288   3.871895
Si           0.124533  -1.105288   3.871895
Si           0.124533   2.205279  -1.936080
Si          -0.124533  -2.205279  -1.936080
Si          -0.124533   1.105288  -3.871895
Si           0.124533  -1.105288  -3.871895
H           -0.020102   3.685285   1.944791
H            0.054995   1.855794  -5.141330
H           -0.020102   3.685285  -1.944791
H            0.020102  -3.685285  -1.944791
H           -0.054995  -1.855794  -5.141330
H            0.020102  -3.685285   1.944791
H           -0.054995  -1.855794   5.141330
H            0.054995   1.855794   5.141330
