Selective bond scission in forming NO/sub 2/ from NO/sub 3//sup -/ in. gamma. -irradiated crystals of urea nitrate, diglycine nitrate, and monoglycine nitrate as studied by electron spin resonance
The controlling factors of selective bond breakage in forming NO/sub 2/ from NO/sub 3//sup -/ in irradiated crystals of the title compounds have been studied by using a single-crystal ESR technique. The results indicate that the NO/sub 2/ radical with one particular orientation is formed in any of these crystals as a result of scission of a particular N-O bond of NO/sub 3//sup -/. From a comparison of the hyperfine coupling and g tensors with the crystallographic data, it was clarified that the oxygen atom participating in the strongest hydrogen bond is preferentially detached to form NO/sub 2/. Such a selective formation of NO/sub 2/ is interpreted in terms of the reaction scheme in which NO/sub 2/ is formed by protonation of the primary anion radical NO/sub 3//sup 2 -/ followed by dissociation of OH/sup -/, where the proton transfer across the strongest hydrogen-bonding path triggers the selective reaction.
- Research Organization:
- Government Industrial Research Inst., Nagoya, Japan
- OSTI ID:
- 6803317
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 86:11
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alkoxy radical, RCH/sub 2/O, as a free radical product in x-irradiated single crystals of nucleosides and nucleotides
Bonded vs. nonbonded electron transfers in molten salts: characterization and rates of formation of the radical cations and dications of phenoxazine and phenothiazine and behavior of the M(2,2'-bipyridine)/sub 3//sup 2+/3+/ (M = Fe, Ru, Os) complexes in SbCl/sub 3/-rich media
Related Subjects
GLYCINE
CHEMICAL RADIATION EFFECTS
NITRIC ACID ESTERS
NITROGEN DIOXIDE
CHEMICAL REACTION YIELD
UREA
CRYSTALS
ELECTRON SPIN RESONANCE
EXPERIMENTAL DATA
GAMMA RADIATION
LOW TEMPERATURE
RADICALS
AMIDES
AMINO ACIDS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMISTRY
DATA
ELECTROMAGNETIC RADIATION
ESTERS
INFORMATION
IONIZING RADIATIONS
MAGNETIC RESONANCE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RESONANCE
YIELDS
400600* - Radiation Chemistry