Seesaw molecular geometry

Seesaw molecular geometry

Infobox molecular geometry


Symmetry_group= C2V
Electron_direction=5
Atom_direction=4
Bond_angle=90°, 120°, 180°
mu= >0
Examples= SF4

Seesaw is a type of molecular geometry where the central atom has one lone pair of electrons, and there are four bonding groups also connected to that central atom.

Behavior

The seesaw molecules have similar behavior to trigonal bipyramidal, in the fact that it goes through a phase of Berry pseudorotation. The four atoms in motion act as a lever about the central atom, in this case the the four fluorine rotating around the one sulfur. [ [http://www.ch.ic.ac.uk/rzepa/bpr/|Illustration of the Berry Pseudorotation] ]

Examples

The seesaw molecular geometry can be found in the following species. ["Seesaw Molecular Geometry, AX4E1". 25 Dec 2007 ]

*SF4
*SeF4
*IF2O2-
*IOF3
*ClF4+

ee also

*Molecular geometry
*AXE method

References

External References

* [http://www.3dchem.com/3D Chem| Chemistry, Structures, and 3D Molecules]
* [http://www.iumsc.indiana.edu/IUMSC| Indiana University Molecular Structure Center]
* [http://www.phys.ncl.ac.uk/staff/njpg/symmetry/Molecules_l3d.html Point Group Symmetry| Point Group Symmetry Interactive Examples]
* [http://chemlab.truman.edu/CHEM121Labs/MolecularModeling1.htm| Molecular Modeling]
* [http://intro.chem.okstate.edu/1314F97/Chapter9/3BP.html| Animated Trigonal Planar Visual]
* [http://intro.chem.okstate.edu/1314F00/Lecture/Chapter10/VSEPR.html]


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