Splitting of v2 vibrational mode of CO2 isotopic species in the unstable trapping site in argon matrixP. R. Dahoo, I. Berrodier, V. Raducu, J. L. Teffo, H. Chabbi, A. Lakhlifi and L. Abouaf-MarguinEur. Phys. J. D, 5 1 (1999) 71-81DOI: https://doi.org/10.1007/s100530050231