Examples XeF5 Coordination number 5 | Steric number 7 Bond angle(s) 72°, 144° | |
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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.
Examples
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.
References
Pentagonal planar molecular geometry Wikipedia(Text) CC BY-SA