Oscillator strengths for ClII lines

The relativistic corrections are included through the Breit-Pauli Hamiltonian. The Cl II wave functions show strong term dependence.

The non-orthogonal orbitals are used to describe the term dependence of radial functions. Large sets of spectroscopic and correlation functions are chosen to describe adequately strong interactions in the 3s^2^ 3p^3^nl ^3^P^o^, ^1^P^o^ and ^3^D^o^ Rydberg series and to properly account for the important correlation and relaxation effects. The length and velocity forms of oscillator strength show good agreement for most transitions.