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Chemistry [Quantum ] --- Chimie quantique --- Quantum chemistry --- Quantumchemie --- 530.145 --- Chemistry, Quantum --- Chemistry, Physical and theoretical --- Quantum theory --- Excited state chemistry --- 530.145 Quantum theory

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Ideas of Quantum Chemistry shows how quantum mechanics is applied to chemistry to give it a theoretical foundation. From the Schroedinger equation to electronic and nuclear motion to intermolecular interactions, this book covers the primary quantum underpinnings of chemical systems. The structure of the book (a TREE-form) emphasizes the logical relationships among various topics, facts and methods. It shows the reader which parts of the text are needed for understanding specific aspects of the subject matter. Interspersed throughout the text are short biographies of key scientists an

Quantum chemistry. --- Chemistry, Quantum --- Chemistry, Physical and theoretical --- Quantum theory --- Excited state chemistry --- Quantum chemistry

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Molecules, small structures composed of atoms, are essential substances for lives. However, we didn't have the clear answer to the following questions until the 1920s: why molecules can exist in stable as rigid networks between atoms, and why molecules can change into different types of molecules. The most important event for solving the puzzles is the discovery of the quantum mechanics. Quantum mechanics is the theory for small particles such as electrons and nuclei, and was applied to hydrogen molecule by Heitler and London at 1927. The pioneering work led to the clear explanation of the chemical bonding between the hydrogen atoms. This is the beginning of the quantum chemistry. Since then, quantum chemistry has been an important theory for the understanding of molecular properties such as stability, reactivity, and applicability for devices. This book is devoted for the theoretical foundations and innovative applications in quantum chemistry.

Quantum chemistry. --- Chemistry, Quantum --- Chemistry, Physical and theoretical --- Quantum theory --- Excited state chemistry --- Quantum & theoretical chemistry

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This book provides a comprehensive account, from first principles, of the methods of numerical quantum mechanics, beginning with formulations and fundamental postulates. The development continues with that of the Hamiltonian and angular momentum operators, and with methods of approximating the solutions of the Schroedinger equation with variational and perturbation methods.Chapter 3 is a description of the Hartree-Fock self-consistent field method, which is developed systematically for atoms. The Born-Oppenheimer approximation is introduced, and the numerical methods presented one by one there

Quantum chemistry --- Quantum chemistry. --- Chemistry, Quantum --- Chemistry, Physical and theoretical --- Quantum theory --- Excited state chemistry --- Mathematics.

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Quantum chemistry. --- Chemistry, Quantum --- Chemistry, Physical and theoretical --- Quantum theory --- Excited state chemistry