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<p>and Coulomb integrals of these atomic orbitals.  It does not attempt to solve the <a href="page.php?w=Schr%C3%B6dinger_equation">Schrödinger equation</a>, and neither the functional form of the basis atomic orbitals nor details of the <a href="page.php?w=Hamiltonian_%28quantum_mechanics%29">Hamiltonian</a> are involved. <br/>
* For hydrocarbons, the method takes atomic connectivity as the only input; empirical parameters are only needed when heteroatoms are introduced.<br/>
* The method predicts how many energy levels exist for a given molecule,</p><p>
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