#RHF/STO-3G Opt

H4SiO4 in D2d symmetry

 0 1
Si	0.00  0.00  0.00
O   0.96  0.96  0.96
O  -0.96 -0.96  0.96
O  -0.96  0.96 -0.96
O   0.96 -0.96 -0.96
H   1.64  1.64  0.70 
H  -1.64 -1.64  0.70
H  -1.64  1.64 -0.70
H   1.64 -1.64 -0.70