18

Si          -0.212298   1.132513   0.000000
Si           0.212298  -1.132513   0.000000
Si          -0.285046  -2.206637   1.949848
Si           0.285046   2.206637   1.949848
Si          -0.285046   1.084014   3.833887
Si           0.285046  -1.084014   3.833887
Si           0.285046   2.206637  -1.949848
Si          -0.285046  -2.206637  -1.949848
Si          -0.285046   1.084014  -3.833887
Si           0.285046  -1.084014  -3.833887
H           -0.197318   3.631318   1.949133
H           -0.006507   1.819653  -5.115333
H           -0.197318   3.631318  -1.949133
H            0.197318  -3.631318  -1.949133
H            0.006507  -1.819653  -5.115333
H            0.197318  -3.631318   1.949133
H            0.006507  -1.819653   5.115333
H           -0.006507   1.819653   5.115333
