Comment on 'The correspondence between quantum and classical mechanics: An experimental demonstration of the smooth transition between the two regimes' [Chem. Phys. Lett. 402 (2005) 519]

The Schrödinger's equation, yields the temperature Ttun, where begins the tunnel pathway for proton transfer (transparent barrier for De Broglie'a wave). At the temperature Ttun, thermal energy equals activation energy. The spectral density of tunneling motion exists below the temperature Ttun, only.