Abstract

AbstractThe Rydberg excited levels of s, p, d, and f symmetries are studied up to principal quantum number n=5 for the first eight members of the Na iso‐electronic sequence (Na to Ar7+) and for the first six members of the Al iso‐electronic sequence (Al to Ar5+) by the symmetry adapted cluster–configuration interaction (SAC–CI) method. The valence Slater‐type orbital (STO) basis sets of Clementi et al. and the optimized Rydberg STO functions are used by the STO‐6G expansion method. The calculated transition energies agree well with the experimental values wherever available. The results for the 4f level of S3+ and for the 5s, 4p, 5p, and 4f levels of Cl4+ and Ar5+ are predicted for the first time. © 2001 John Wiley & Sons, Inc. Int J Quantum Chem, 2001

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