Quantum ChemistryLowe's new edition assumes little mathematical or physical sophistication and emphasizes an understanding of the techniques and results of quantum chemistry. It can serve as a primary text in quantum chemistry courses, and enables students and researchers to comprehend the current literature. This third edition has been thoroughly updated and includes numerous new exercises to facilitate selfstudy and solutions to selected exercises.

Contents
Classical Waves and the TimeIndependent Schrodinger Wave Equation  1 
Quantum Mechanics of Some Simple Systems  27 
The OneDimensional Harmonic Oscillator  69 
The Hydrogenlike Ion Angular Momentum and the Rigid Rotor  89 
ManyElectron Atoms  127 
Postulates and Theorems of Quantum Mechanics  166 
The Variation Method  190 
The Simple Huckel Method and Applications  244 
Qualitative Molecular Orbital Theory  484 
Molecular Orbital Theory of Periodic Systems  526 
Useful Integrals  582 
Angular Momentum Rules  591 
The Pairing Theorem  601 
Derivation of the HartreeFock Equation  614 
The Virial Theorem for Atoms and Diatomic Molecules  626 
Braket Notation  629 
Splitting Constants  271 
Matrix Formulation of the Linear Variation Method  308 
The Extended Huckel Method  324 
The SCFLCAOMO Method and Extensions  348 
TimeIndependent RayleighSchrodinger Perturbation Theory  391 
Group Theory  429 
Appear  465 
Other editions  View all
Common terms and phrases
allowed angular momentum antisymmetric approximation assume atom average axis band basis set becomes bond calculation called carbon Chapter charge coefﬁcients combination conﬁguration consider constant containing contributions coordinates correlation corresponding degenerate density dependence described determinant discussion effect eigenfunctions eigenvalues electron elements energy equal equation example expect expression ﬁeld Figure ﬁnd ﬁrst functions given gives Hence hydrogen identical increases indicated integral interactions leads linear lower lowest matrix means method mixing molecular molecule multiplication normalized nucleus obtain occur operator orbital orthogonal overlap pair particle perturbation plane position possible potential predict problem produce quantum quantum mechanics referred reﬂection relation representation requires respectively result rotation rules separated shown simple single sketched solutions square symbol symmetry Table unit vanish variation vectors wave wavefunction zero