Pentagonal planar molecular geometry
In chemistry, the pentagonal planar molecular geometry describes the shape of compounds where five atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a pentagon.
|Pentagonal planar molecular geometry|
The only two pentagonal planar species known are the isoelectronic (nine valence electrons) ions XeF−
5 and IF2−
5. Both are derived from the pentagonal bipyramid with two lone pairs occupying the apical positions and the five fluorine atoms all equatorial.
- Housecroft, C. E.; Sharpe, A. G. (2004). Inorganic Chemistry (2nd ed.). Prentice Hall. p. 498. ISBN 978-0130399137.