Pentagonal pyramidal molecular geometry

Pentagonal pyramidal molecular geometry
Steric number	7
Coordination number	6
Bond angle(s)	72°, 90°, 144°

In chemistry, pentagonal pyramidal molecular geometry describes the shape of compounds where in six atoms or groups of atoms or ligands are arranged around a central atom, defining the vertices of a pentagonal pyramid. It is one of the few molecular geometries with uneven bond angles.

AX₆E₁

Examples

• XeOF⁻
  ₅
• IOF²⁻
  ₅

References

• Pentagonal pyramid, Wolfram MathWorld