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chapter 9 Molecular Geometry and Bonding Theories
Table 9.2 Electron-Domain and Molecular Geometries for Two, Three, and Four Electron Domains
around a Central Atom
Number of
Electron
Domains
Hybridization on
central atom
OverallGeometry - determined
by total electron domains
2
Linear
Molecular
Geometry - determined
by types of e- domains: #bonded
atoms(BAs + #LPs)
Linear
3
Trigonal planar
Trigonal planar
Bent
4
Tetrahedral
Tetrahedral
Trigonal
pyramidal
Bent
Example
section 9.2 The VSEPR Model
Table 9.3 Electron-Domain and Molecular Geometries for Five and Six
Electron Domains around a Central Atom
Number of
Electron
Domains
Hybridization on
central atom
OverallGeometry - determined
Molecular
Geometry - determined
Trigonal
bipyramidal
Trigonal
bipyramidal
by total electron domains
by types of e- domains: #bonded
atoms(BAs + #LPs)
5
Seesaw
T-shaped
Linear
6
Octahedral
Octahedral
Square pyramidal
Square planar
Example
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