On the electric polarisabilities of Li+(1S), Li(2S) and Li-(1S)

Abstract
The dipole polarisability alpha and the higher polarisabilities C, B and gamma have been calculated for Li+, Li and Li- at close to the Hartree-Fock limit. All the electric polarisability tensors up to the fourth rank have been included in this study. The contributions of these tensors to the simple potentials Li-e-, Li-H+, Li-He2+ lead to deductions about the chemical behaviour of the lithium atom.
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