ChemInform Abstract: LASER MAGNETIC RESONANCE, RESONANCE FLUORESCENCE, RESONANCE ABSORPTION STUDIES OF THE REACTION KINETICS OF ATOMIC OXYGEN + HYDROXYL → ATOMIC HYDROGEN + MOLECULAR OXYGEN, ATOMIC OXYGEN + PERHYDROXYL → HYDROXYL + MOLECULAR OXYGEN, ATOMI

1984 ◽  
Vol 15 (5) ◽  
Author(s):  
WM. H. BRUNE ◽  
J. J. SCHWAB ◽  
J. G. ANDERSON
Author(s):  
Domenik Schleier ◽  
Engelbert Reusch ◽  
Marius Gerlach ◽  
Tobias Preitschopf ◽  
Deb Pratim Mukhopadhyay ◽  
...  

The reaction kinetics of the isomers of the methylallyl radical with molecular oxygen has been studied in a flow tube reactor at the vacuum ultraviolet (VUV) beamline of the Swiss Light Source storage ring.


1979 ◽  
Vol 57 (6) ◽  
pp. 828-835 ◽  
Author(s):  
J. C. D. Brand ◽  
P.-H. Chiu ◽  
A. R. Hoy

Resonance fluorescence of 15NO2 excited by narrow-band radiation of an Ar+ laser at 514, 495, 488, and 476 nm is reported and analyzed. The data are combined with published laser magnetic resonance and infrared measurements to obtain a set of vibration and vibration–rotation constants for the electronic ground state of this isotope.The fluorescence bands reported are a-axis polarized, corresponding to a transition moment [Formula: see text] between 2B2 and 2A1 basis states. Numerous anomalies in the vibrational and rotational structure of the fluorescence indicate that, in the region of the manifold probed by the laser, vibrational levels of the parent 2B2 basis state mix extensively with one another as well as with high vibrational levels of the 2A1 ground state.


1991 ◽  
Vol 230 ◽  
Author(s):  
K. Yamamoto ◽  
B. M. Lairson ◽  
J. C. Bravman ◽  
T. H. Geballe

AbstractThe kinetics of oxidation in Yba2Cu3O7-x thin films in the presence of molecular and atomic oxygen ambients have been studied. The resistivity of c-axis, a-axis, and mixed a+c axis oriented films, deposited in-situ by off-axis magnetron sputtering, was measured as a function of time subsequent to a change in the ambient conditions. The oxidation process is shown to be thermally activated and can be characterized by a diffusion model with an activation energy which varies from approximately 1.2eV in the presence of molecular oxygen to 0.6eV for a flux of 2×1015 oxygen atoms/cm2sec. In both cases, diffusivity is found to be insensitive to oxygen stoichiometry, but the rate of oxidation is found to be sensitive to the microstructure and orientation of the films.


Sign in / Sign up

Export Citation Format

Share Document