Adapted Gaussian basis sets for ions with N <= 54

Adapted Gaussian basis sets are reported for the cations He+-Xe+ and anions H--I- using the generator coordinate Hartree-Fock method of selecting orbi tal exponents. For all ions studied, our wavefunctions are an improvement o ver those of da Silva and Trsic using a universal Gaussian basis set. Besid e this, our ground state total energy values do not differ from the corresp onding numerical Hartree-Fock values by more than 4.562 mhartree for the ca tions and anions. (C) 2001 Elsevier Science B.V. All rights reserved.