Infrared and far-infrared spectra of three isotopic modifications of the secondary ethylene ozonide isolated in solid argon are reported. Assignments are given for the vibrational spectra based on both empirical arguments and normal coordinate analysis. A 30-parameter harmonic force field is reported and fairly detailed analysis of the Fermi resonance of the CH2 stretching and bending modes is presented. Statistical thermodynamic functions of the normal species 12C21H4160s are tabulated.
ChemInform Abstract The mechanism of charge transfer in the H2 evolution reaction is studied at bare and metal-coated (Pt, Au, Ag, Cu, Pb) p-and n-type InP electrodes. The flatband potential shift, ∆UFB, of illuminated electrodes is found to be a logarithmic function of the photocurrent density and can be presented in Tafel plots. The slope of such a Tafel plot and the extrapolation toward ∆UFB = 0 reflect the electrocatalytic properties of the electrode surface. A simple Schottky barrier model with subsequent charge transfer at the metal surface can be used to explain quantitatively the observed photocurrent-voltage curves. The results suggest that photocatalysis is not involved in the charge transfer process.
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