Babylon 10
The world's best online dictionary

Download it's free

trigonal pyramidal

Wikipedia English The Free Encyclopedia

Download this dictionary
Trigonal pyramidal molecular geometry
In chemistry, a trigonal pyramid is a molecular geometry with one atom at the apex and three atoms at the corners of a trigonal base. When all three atoms at the corners are identical, the molecule belongs to point group C3v. Some molecules and ions with trigonal pyramidal geometry are ammonia (NH3), xenon trioxide, XeO3, the chlorate ion, ClO3-, and the sulfite ion, SO32-. In organic chemistry, molecules which have a trigonal pyramidal geometry are sometimes described as sp3 hybridized. The AXE method for VSEPR theory states that the classification is AX3E1.

See more at Wikipedia.org...


© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License

General Chemistry Glossary

Download this dictionary
trigonal pyramidal
A molecular shape that results when there are three bonds and one lone pair on the central atom in the molecule. NH3 is a trigonal pyramidal molecule.