SEARCH Articles Figures Tables Configuration Interaction Configuration interaction electronic spectroscopy Configuration interaction electronic transition energies Configuration interaction excited electronic states Configuration-interaction methods electronic structure calculations Configuration-interaction theory electronic gradient Configurational interaction Correlation, electron Configuration interaction, Coupled-cluster Coupled-cluster theory, electron correlation configuration interaction calculations Electron correlation configuration interaction Electron correlation configuration interaction approach Electron correlation methods configuration interaction Electronic energy multireference configuration interaction Electronic interactions Electronic states configuration interaction Electronic structure configuration interaction Electronic structure configuration-interaction methods Electronic structure methods configuration interaction method Hamiltonian matrix, electron correlation configuration interaction Size-consistent calculations, electron correlation configuration interaction