VSEPR

From Wikimedia Commons, the free media repository
Jump to: navigation, search

VSEPR Geometries[edit]

Valence shell electron pair repulsion (VSEPR) theory (1957) is a model in chemistry, which is used for predicting the shapes of individual molecules, based upon their extent of electron-pair electrostatic repulsion, determined using steric numbers.

2D[edit]

Steric
No.
Basic Geometry
0 lone pair
1 lone pair 2 lone pairs 3 lone pairs 4 lone pairs
1 AX1E0-2D.png
linear
       
2 AX2E0-2D.png
linear
AX1E1-2D.png
linear
     
3 AX3E0-side-2D.png
trigonal planar
AX2E1-2D.png
bent / angular
AX1E2-2D.png
linear
   
4 AX4E0-2D.png
tetrahedral
AX3E1-2D.png
trigonal pyramid
AX2E2-2D.png
bent / angular
AX1E3-2D.png
linear
 
5 AX5E0-2D.png
trigonal bipyramid
AX4E1-2D.png
sawhorse / seesaw
AX3E2-2D.png
t-shape
AX2E3-2D.png
linear
 
6 AX6E0-2D.png
octahedral
AX5E1-2D.png
square pyramid
AX4E2-2D.png
square planar
   
7 AX7E0-2D.png
pentagonal bipyramidal
AX6E1-2D.png
pentagonal pyramidal
     


3D[edit]

Steric
No.
Basic Geometry
0 lone pair
1 lone pair 2 lone pairs 3 lone pairs 4 lone pairs
1 AX1E0-3D-balls.png
linear
       
2 AX2E0-3D-balls.png
linear
AX1E1-3D-balls.png
linear
     
3 AX3E0-3D-balls.png
trigonal planar
AX2E1-3D-balls.png
bent / angular
AX1E2-3D-balls.png
linear
   
4 AX4E0-3D-balls.png
tetrahedral
AX3E1-3D-balls.png
trigonal pyramid
AX2E2-3D-balls.png
bent / angular
AX1E3-3D-balls.png
linear
 
5 Trigonal-bipyramidal-3D-balls.png
trigonal bipyramid
AX4E1-3D-balls.png
sawhorse / seesaw
AX3E2-3D-balls.png
t-shape
AX2E3-3D-balls.png
linear
 
6 AX6E0-3D-balls.png
octahedral
AX5E1-3D-balls.png
square pyramid
AX4E2-3D-balls.png
square planar
   
7 AX7E0-3D-balls.png
pentagonal bipyramidal
AX6E1-3D-balls.png
pentagonal pyramidal