Symmetry Lab › D3d › Disilane (staggered)
Si₂H₆ Disilane (staggered)
Staggered · point group D3d · order 12
- Point group
- D3d — A C3 principal axis, 3 perpendicular C2 axes and 3 dihedral mirror planes that bisect them; the principal axis is also an S6 axis.
- Order
- 12
- Operations
- E, 2C₃, 3C₂, i, 2S₆, 3σd
- Shape
- Staggered
- Atoms
- 8 (Si × 2, H × 6)
Symmetry elements of Si₂H₆
- C₃ — along the Si–Si bond
- C₂ (1) — perpendicular to the bond, through its midpoint
- C₂ (2) — perpendicular to the bond, through its midpoint
- C₂ (3) — perpendicular to the bond, through its midpoint
- i — centre of inversion
- S₆ — rotate 60°, then reflect
- σd (1) — contains the bond and one H on each Si
- σd (2) — contains the bond and one H on each Si
- σd (3) — contains the bond and one H on each Si
Structure
- Si–Si 2.33 Å, Si–H 1.49 Å
- H–Si–Si 110.3°
- The silicon analogue of ethane
