An efficient code for calculation of the 6C, 9C and 12C symbols for image, image, and image point groups Original Research Article

A new code designed to calculate the 6C, 9C, and 12C symbols for image, image, and image point groups is presented. The program is based on an algorithm that uses the symmetry property between pair and impair representations. This algorithm allows one to speed up the C-symbols calculation and increase the efficiency of spectroscopic programs based on the irreducible tensorial formalism.