This paper provides a new effort to study of the ddμ structure. The present work is numerically performed using
a new trial wave function to the ddμ system in configuration of coupled channels. The present results of energies
are more accurate than those of our previous work. The obtained results of formation rates are close to results
published by Yu.V. Petrov et al. and giving strong indications that the trial wave function is good enough in
determining the resonance states of the mentioned ionic molecule.