Table of Contents
Chapter 9: Molecular Geometry and Bonding Theories
Shapes and Sizes of Molecules
Shapes and Sizes of Molecules
9.1 Molecular Shapes
Molecular Shapes
Repulsions of Eggs
Repulsions of Acorns
Repulsions of Atoms
9.2 The VSEPR Model
VSEPR Theory
VSEPR Theory
What is wrong with Jason’s model of water?
VSEPR Theory
Electron-Domain Geometry
Molecular Geometry
Molecular Geometry
Molecular Geometry
Molecular Geometry
Five Electron Groups
Five Electron Groups
Molecular Geometry
Molecular Shapes
What are the structures of the following molecules and ions?
Possible Shapes
What are the structures of the following molecules and ions?
The Effect of Nonbonding Electrons and Multiple Bonds on Bond Angles
The Effect of Nonbonding Electrons and Multiple Bonds on Bond Angles
Molecules with More than One Central Atom
9.3 Polarity of Polyatomic Molecules
Polar Bonds
Are molecules polar if they have polar bonds?
Polarity of Molecules
Polarity of Molecules
Which of these molecules is polar?
9.4 Covalent Bonding and Orbital Overlap
Formation of a covalent bond from s + s or s + p orbitals to give a sigma (s) bond
Energy Minimization
Formation of a covalent bond from p + p orbitals to give a sigma (s) bond
9.5 Hybrid Orbitals Shortcomings of VB Theory
Some incorrect predictions
Hybridization
sp Hybridization
sp2 Hybridization
sp2 Hybridization
Hybridization for Boron
sp3 Hybridization
sp3 Hybridization
Hybridization for Carbon
Hybridization Involving d Orbitals
Geometry and Hybrid Orbitals
Use hybrid orbitals for the sigma bonding and unshared electrons.
9.6 Multiple Bonds
Formation of a covalent bond from p + p orbitals to give a pi (p) bond
Multiple Bonds
How do we form a multiple bond?
How do we form the double bond in O2?
Which orbitals overlap and what type of bonds are formed?
What hybridization for a double bond?
Hybrid Orbitals in a Double Bond
What hybridization for a triple bond?
Hybrid Orbitals in a Triple Bond
Multiple Bonds
Describe the bonding in the following molecules:
Delocalized p Bonding
Delocalization
Delocalization
Delocalization in Benzene
Delocalization in Benzene
Why does graphite conduct electricity?
Electron Microscope Image of Graphite
Sections 9.7, 9.8 Molecular Orbital Theory
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Author: Department of Chemistry and Biochemistry
Email: JBirk@asu.edu
Home Page: http://www.public.asu.edu/~jpbirk
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