Showing papers by "Shigero Ikeda published in 1985"
TL;DR: In this paper, the surface complexes of primary amines are similar to those of nitriles, and they can be characterized mainly by the N 1s core electron binding energies, in comparison with those for the intermediates from ammonia.
46 citations
17 citations
TL;DR: In this paper, the second-order rate constants for the catalytic reaction with nitrate and perchlorate obtained after Koutecky's treatment are (2.1±0.4)×103 and (1.9± 0.1)×102M−1 s−1, respectively.
Abstract: The kinetics of polarographic catalytic reduction of nitrate and perchlorate by electrogenerated transient species of Mo(V) are investigated in 0.1M sulfuric acid solution. Second-order rate constants for the catalytic reaction with nitrate and perchlorate obtained after Koutecky’s treatment are (2.1±0.4)×103 and (1.9±0.1)×102M−1 s−1, respectively. Stable Mo(V) species in sulfuric acid solution is studied by spectrophotometry. It is concluded that there exists dimer-dimer-monomer equilibria. The oxidation of the monomer with perchlorate in 14M H2SO4 obeys the second-order rate law –d[monomer]/dt=k[monomer][ClO4−], where k=(1.59±0.13)×10−1 M−1 s−1. The results indicate that electrogenerated Mo(V) in 0.1M H2SO4 is not the same species as the stable monomeric Mo(V) in 14M H2SO4.
5 citations
TL;DR: In this article, the chemical interactions between aromatic nitro compounds and thin aluminium oxide grown on aluminium film were studied by the combined use of inelastic electron tunneling spectroscopy (IETS) and X-ray photoelectron spectrography (XPS).
Abstract: Chemical interactions between aromatic nitro compounds and thin aluminium oxide grown on aluminium film were studied by the combined use of inelastic electron tunneling spectroscopy (IETS) and X-ray photoelectron spectroscopy (XPS). IET spectra of nitrobenzoic acids and nitrophenols show that nitro groups of these compounds are reduced on the oxide and result in the corresponding amino compounds. In this conversion reaction, oxygen atoms of nitro group are consumed for the growth of the oxide layer and hydrogen atoms of the surface hydroxyl groups are used for the amidation reaction. The intermediate of the reaction is identified to the corresponding nitroso compounds from the XPS analysis.
5 citations
TL;DR: In this article, it was shown that the Cu/Cu I redox system in chloride solution (0.1 − ] M ) giving a simple CV curve, can be divided into two reactions: Cu/cuCl ad and Cu/ CuCl − 2.
5 citations
TL;DR: In this paper, the 31P NMR spectra of the compound for each ion exhibit its specific chemical shift and relative peak area in proportion to the concentration of the corresponding complexes.
Abstract: Group 5A elements, such as V(V), Nb(V), and Ta(V), react with a molybdophosphate to form ternary heteropoly molybdates quantitatively in the acidic solution. 31P NMR spectra of the compound for each ion exhibit its specific chemical shift and relative peak area in proportion to the concentration of the corresponding complexes. This reaction endues the simultaneous determination of group 5A elements without any separation procedure.
2 citations
2 citations