Translational-energy spectroscopy

The photolysis of CH3NO2 by 193 nm laser light was studied by product emission spectroscopy and molecular beam photofragment translational energy spectroscopy by Butler et al. (119). Blais (120) also studied the photolysis by the TOF method. The primary process is... 

Molecular beam photofragment translational energy spectroscopy has been used by Hepburn et to elucidate the photodissociation mechanisms of Si glyoxal. They presented evidence for predissociation of S, glyoxal in the absence of collisions and for the existence of three distinct dissociation pathM(ays. The major dissociation mechanisms were shown to lead to the formation of H2CO + CO and 2CO-I-H2, with a third minor channel producing CO 3-an isomer of H2CO, possibly hydroxymethylene. 

Hamdan M and Brenton A G 1991 High-resolution translational energy spectroscopy of molecular ions Physics of Ion Impact Phenomena ed D Mathur (Berlin Springer)... 

Electron-Ion and Ion-Ion Recombination Processes, M. R. Flannery Studies of State-Selective Electron Capture in Atomic Hydrogen by Translational Energy Spectroscopy, H. B. Gilbody Relativistic Electronic Structure of Atoms and Molecules, I. P. Grant The Chemistry of Stellar Environments,... 

In detailed studies of CH3NO2 photodissociation at wavelengths within the tt tt band (193-218 nm), Butler et al. (1983), Lao et al. (1990), and Moss et al. (1992) employed molecular beam translational energy spectroscopy and product emission spectroscopy to demonstrate that two distinct mechanisms were involved in the process (I). The dominant mechanism releases a relatively large fraction of the total available energy to translation with NO2 formed in a vibrationally excited A B2 state which can rapidly dissociate to NO and O. Wade et al. (2006) found similar results when they photolyzed CH3NO2 at 192, 248, and 266 nm and observed the products by time-dependent Fourier transform infrared emission spectroscopy. The primary process (I) was dominant with A B2 NO2 formation. 

---