## The HMO model and its application: Problems with solutions |

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### Contents

Introduction of the Basic Principles of HMO Theory | 1 |

Atomic and Bond Orbitals | 26 |

An Introduction to Quantum Mechanical Principles | 50 |

Copyright | |

10 other sections not shown

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### Common terms and phrases

7r-system alternant 7r-electron systems anthracene antibonding antibonding molecular orbitals antisymmetric with respect approximate orbital energies atom localization energies atom-atom polarizabilities atomic orbitals azulene benzene benzologous bond lengths bond orders calculated according carbon cation centers charge orders compounds conjugate acid correlation diagram corresponding coupling constants deviation difference dipole double bond eigenvalues electrophilic energy level scheme exact HMO values excitation energy factor free electron pairs fulvene functions Gauss given Hiickel determinant HMO Tables Vol HMO theory hydrocarbons hydrogen interaction irreducible representations isoconjugate model kcal/mol LCMO linear combinations list of perturbations lowest antibonding methyl group molecule naphthalene nonalternant nonbonding molecular orbital normalization orbital energy coefficients order perturbation calculation orthogonal parameter partial systems pentalene phenanthrene pK values plane polarizabilities position predicted Problem protons qualitative molecular orbitals radical anion regression resonance integral ring second order perturbation secular determinant spin densities substitution total 7r-electron energy total energy xHMO