17 Si 0.000000 -0.000000 -0.000000 C 1.094446 1.094446 1.094446 H 1.749078 1.749078 0.482207 H 1.749078 0.482207 1.749078 H 0.482206 1.749078 1.749078 C -1.094446 -1.094446 1.094446 H -1.749078 -0.482207 1.749078 H -1.749078 -1.749078 0.482207 H -0.482207 -1.749078 1.749078 C 1.094446 -1.094446 -1.094446 H 0.482207 -1.749078 -1.749078 H 1.749078 -0.482207 -1.749078 H 1.749078 -1.749078 -0.482207 C -1.094446 1.094446 -1.094446 H -1.749078 0.482207 -1.749078 H -1.749078 1.749078 -0.482207 H -0.482207 1.749078 -1.749078