Electronic wave functions Molecules 6 Tensors 6 Computational methods 4 Diamagnetism 4 Hypermagnetizability 4 Magnetic anisotropy 4 Magnetic field effects 4 Magnetic shielding 4 Magnetic susceptibility 4 Molecular dynamics 4 Natural frequencies 4 Nonlinear response 4 Nuclear magnetic resonance 4 Nuclear magnetic shielding 4 Perturbation techniques 4 Quantum theory 4 Algebraic approximation 2 Faraday effect 2 Gaussian functions 2 Quantum chemistry 2 Quantum-chemical methods 2 Random phase approximations 2 Sum rule 2 Variational calculation 2 Variational techniques 2 Verdet constant 2 Verdet tensor 2 sum rule for origin independence 2 symmetry unique components 2