7 research outputs found
On lower bounds for polarisability
The response of molecular systems to external fields was one of the first areas studied
after development of the new quantum mechanics. Early work by Kirkwood and Buckingham
developed polarisability lower bounds that are still used today. This work uses an
inequality proposed by Linderberg to develop a treatment of polarisability lower bounds
that unifies the work of Kirkwood and Buckingham with Hylleraas’ variational perturbation
theory. In particular, the prehistory of the works of Kirkwood and Buckingham is
described. Numerical examples are presented to demonstrate the convergence of approximate
wavefunctions in the confined atom problem. The applicability of dimensional scaling and
its utility in the analysis of confined systems are also discussed
Kinematic anharmonicity of internal rotation of molecules
The methods of analysis the strongly coupled vibrations are proposed for a number of molecules of aromatic and heterocyclic carbonyl (and some others) compounds. The qualitative principles are formulated for molecular systems with a significant kinematic anharmonicity
Kinematic anharmonicity of internal rotation of molecules
The methods of analysis the strongly coupled vibrations are proposed for a number of molecules of aromatic and heterocyclic carbonyl (and some others) compounds. The qualitative principles are formulated for molecular systems with a significant kinematic anharmonicity
Kinematic anharmonicity of internal rotation of molecules
The methods of analysis the strongly coupled vibrations are proposed for a number of molecules of aromatic and heterocyclic carbonyl (and some others) compounds. The qualitative principles are formulated for molecular systems with a significant kinematic anharmonicity