CHE 372
PHYSICAL CHEMISTRY II

Lecture Outlines



I:  MATHEMATICAL PRELIMINARIES

Operators
Operator Algebra
Addition and Subtraction of Operators
Commutators
Linear Operators
Eigenfunctions and Eigenvalues

II:  EARLY QUANTUM THEORY

Black-body Radiator
The Photoelectric Effect
Hydrogen Line Spectra
Einstein Explains the Photoelectric Effect
The Bohr Model
Sommerfeld's Corrections
Wave-Particle Duality

III.  POSTULATES OF QUANTUM MECHANICS

The Postulates
The Correspondence Principle
Normalization
The Kinetic Energy Operator
Hermitian Operators
Principle of Complementarity
Uncertainty Relations
Orthogonality
The Variational Principle
The Dirac Delta Function

IV.  SOLUTIONS TO MODEL PROBLEMS

Particle-in-a-1D Box
Particle-in-a-3D Box
Degeneracy
The Rigid Rotor
The One-Dimensional Harmonic Oscillator
A Variational Calculation for the Particle-in-a-1D Box

V.  ATOMIC STRUCTURE

Solving the Hydrogen Atom Schrodinger Equation
Allowed Quantum Numbers
Angular Momentum
The Hydrogen Atom Wave Functions:  Pictures and Equations
Orbital Angular Momentum of Hydrogenic Atoms
Working with Hydrogen Atom Wave Functions
Electron Spin
Stern-Gerlach Experiment
The Helium Atom
Pauli Exclusion Principle
Excited States of Helium
The Variation Method
Hartree-Fock Wave Functions
Periodicity and the Aufbau Principle
Atomic Term Symbols:  The Vector Model of the Atom
Hund's Rules

VI.  CHEMICAL BONDING

The Born-Oppenheimer Approximation
The Hydrogen Molecule Ion ()
LCAO-MO Variational Approach to
LCAO-MO Approach for Homonuclear Diatomics
An Aside on Notation
MO Energy Diagrams
Molecular Electron Configurations
Bond Order
MO Theory Applied to Heteronuclear Diatomics
MO Treatment of Polyatomic Molecules
Valence Bond Theory
Hybridization
Huckel Molecular Orbital Theory

VII.  MOLECULAR SPECTROSCOPY

Electromagnetic Radiation
Dipole Moments
Selection Rules
The Boltzmann Distribution Law
The Schrodinger Equation for Nuclear Motion
Rotational Spectroscopy of Diatomic Molecules
Using the Harmonic Oscillator as a Model
Vibrational Spectroscopy of Diatomic Molecules
Ro-vibrational Spectroscopy of Diatomic Molecules
Rotational Spectroscopy of Nonlinear Molecules
What are Normal Coordinates?
Normal Modes of Vibration
Vibrational Spectroscopy of Polyatomic Molecules
Raman Scattering
An Overview of Electronic Spectroscopy
The Franck-Condon Principle
Franck-Condon Factors
Oscillator Strength
Fluorescence
Phosphorescence
Jablonski Diagrams
Dissociation and the Continuum
Predissociation
and transitions
d - d transitions
Free Electron Molecular Orbital Theory
Determining Dissociation Energies

VIII.  THE KINETIC THEORY OF GASES

Equipartition of Energy
Total Energy and Ideal Heat Capacity
The Binomial Distribution
The Gaussian Distribution
The Maxwell-Boltzmann Distribution
1D M-B Velocity Distribution
Maxwell-Boltzmann Distribution of Speeds
Multidimensional Maxwell-Boltzmann Distributions
Types of Average Speeds
Specific Fractions of Molecules

IX.  STATISTICAL MECHANICS

The Microscopic State of a System:  Small Systems
The Microscopic State of a System:  Moderate to Large Systems
Stirling's Approximation
Lagrange's Method of Undetermined Multipliers
The Maxwell-Boltzmann Distribution
Evaluation of Beta
The Molecular Partition Function
What is the Partition Function?
The Boltzmann Entropy Equation
Evaluating the constant beta
Connections to Thermodynamics
The Canonical Partition Function
Distinguishability/Indistinguishability
The Third Law of Thermodynamics
Residual Entropy
Internal Contributions to the Molecular Partition Function
The Translational Partition Function
The Vibrational Partition Function for Diatomic Molecules
The Rotational Partition Function for Diatomic Molecules
The Electronic Partition Function
Partition Functions for Polyatomic Molecules
The Equilibrium Constant

X.  CHEMICAL KINETICS

Empirical Rate Laws
Integrated Rate Laws
Zeroth Order
First Order
Second Order
Half-Life Relations
Temperature Dependence of Reaction Rates
Reaction Mechanisms
Reversible First-Order Reactions
Consecutive First-Order Reactions
Collision Theory
Potential Energy Surfaces
Trajectories on a Potential Energy Surface
Activated Complex or Transition State Theory
Chain Reactions
A Mechanism for Enzyme-Catalyzed Reactions
Explosions

XI.  OTHER STUFF
State Vectors
Dirac Notation
An Introduction to Matrix Mechanics
The Operator Approach to the One-Dimensional Harmonic Oscillator

If you have questions, comments or suggestions, email me at jbentley@deltastate.edu Last updated:  December 15, 2007