Comment on 'The importance of high-order correlation effects for the CO-CO interaction potential' - [Chem. Phys. Lett. 314 (1999) 326]

In a recent Letter, M. Rode et al. [Chem. Phys. Lett. 314 (1999) 326] claim the incapability of the coupled cluster singles and doubles model including connected triple excitations to describe the intermolecular interaction in the CO dimer. We have investigated the problem and found several facts in favor of the coupled cluster singles and doubles model including connected triple excitations being accurate even for the CO dimer.