Results 111 to 120 of about 1,721 (149)

Formation and decay of peroxynitric acid: a pulse radiolysis study

The Journal of Physical Chemistry, 1993
Peroxynitrous acid and peroxynitrite anion have been studied using pulse radiolysis of nitrite and nitrate solutions. The formation rate constant is determined to be k(OH+NO 2 )=(4.5±1.0)×10 9 M -1 s -1 , and the rate constant for the OH radical reaction with nitrite is determined to be k(OH+NO 2 - )= (6.0±1.0)×10 9 M -1 s -1 .
T. Loegager, K. Sehested
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Theoretical study on the isomerization of peroxynitrous acid (HOONO)

Journal of Molecular Structure: THEOCHEM, 2003
Abstract Isomerization processes of peroxynitrous acid (HOONO) is thoroughly investigated using hybrid density functional theory. The geometries of various stable conformers and transition states of HOONO have been optimized at the B3LYP/6-311+G(d,p) level of theory.
Hong Wei Jin, Zun Zhi Wang, Qian Shu Li, Xu Ri Huang   +3 more
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Observation of gas-phase peroxynitrous and peroxynitric acid during the photolysis of nitrate in acidified frozen solutions

Chemical Physics Letters, 2011
Abstract The photolysis of nitrate embedded in ice and snow can be a significant source of volatile nitrogen oxides affecting the composition of the planetary boundary layer. In this work, we examined the nitrogen oxides evolved from irradiated frozen solutions containing nitrate.
Otman Abida, Levi H. Mielke, Hans D. Osthoff   +2 more
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Kinetics Evidence for a Complex Between Peroxynitrous Acid and Titanium(IV).

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Wick PK, Kissner R, Koppenol WH
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UV-spectrum and photodecomposition of peroxynitrous acid in the troposphere

Physical Chemistry Chemical Physics
Photolysis of HOONO is more rapid than thermal decomposition.
Wiem Chebbi, Najoua Derbel, Alexander Alijah, Thibaud Cours   +3 more
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Kinetic Footprinting of an RNA-Folding Pathway Using Peroxynitrous Acid

Angewandte Chemie International Edition, 2000
Following footprints to discover a path is easier with peroxynitrous acid. The folding of the Tetrahymena ribozyme was studied using this readily available reagent to generate hydroxyl radicals for kinetic footprinting studies. The different domains of the ribozyme appear to assemble at different rates following an ordered, hierarchical pathway (see ...
, Chaulk, , MacMillan
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Theoretical Study on Raman Spectra of Aqueous Peroxynitric Acid

Chinese Journal of Chemical Physics, 2011
Using density functional theory and polarizable continuum models, we study the Raman spectra of aqueous peroxynitric acid. The calculated results indicate that the solvent effect has significant influence on the electric dipole transition moments between the ground and excited electronic state and Raman polarizabilities.
Wen-mei Wei, Ren-hui Zheng, Yuan-yuan Jing, Ya-ting Liu, Jun-cheng Hu, Yong Ye, Qiang Shi   +6 more
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Significance of peroxynitric acid in atmospheric chemistry of nitrogen oxides

Nature, 1977
KNOWLEDGE of the life cycle and budget of nitrogen oxides in the atmosphere is important for several reasons. In the stratosphere, NO and NO2 (NOX) play a dominant part in maintaining the structure and stability of the ozone distribution. In the troposphere, NOX is involved in the production and destruction of OH radicals which control the fluxes of ...
R. A. Cox, R. G. DERWENT, A. J. L. HUTTON   +2 more
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The Yield of Hydroxyl Radical from the Decomposition of Peroxynitrous Acid

Inorganic Chemistry, 1999
Mechanistic predictions, based upon the assumption that free {sm{underscore}bullet}OH and {sm{underscore}bullet}NO{sub 2} radicals are formed as intermediates during the ONOOH decay, were tested using inorganic radical scavengers. Both the rates and the yields of Fe(CN){sub 6}{sup 4{minus}} and IRcl{sub 6}{sup 3{minus}} oxidation by ONOOH were ...
Oleg V. Gerasimov, Sergei V. Lymar
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Rotational Spectroscopy of Peroxynitric Acid

2003
$^{a}$C. P. Rinsland, R. Zander, C. B. Farmer, R. H. Norton, L. R. Brown, J. M. Russell, and J. H. Peel, Geophys. Res. Lett. 13, 761-764 (1986). $^{b}$R. R. Frield, R. D. May, and G. Duxbury, J. Mol. Spectrosc. 165, 481-493 (1994). $^{c}$R. D. Suenram, F. J. Lovas, and H. M. Pickett, J. Mol. Spectrosc. 116, 406-421 (1986).
Petkie, Douglas T., Helminger, Paul, Lichau, Holger, De Lucia, Frank C.   +3 more
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