They are molecules with five binding pairs and one solitary pair. The spatial layout including the lone pair is octahedral, without considering the lone pair we are left with a square pyramid.
An example of this geometry is found in the bromine pentafluoride molecule, BrF 5 
Chemical bonding II
Molecules with square pyramidal geometry, AB5E
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- Written by: Germán Fernández
- Category: chemical bond II
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