An electron spin resonance study of the carbonization of the aromatic hydrocarbon acenaphthylene
โ Scribed by L.S Singer; I.C Lewis
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- English
- Weight
- 471 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0008-6223
No coin nor oath required. For personal study only.
โฆ Synopsis
Electron spin resonance measurements have been made on carbonized acenapllthylene in the pure state and in solutions in inert liquids. Well-resolved nuclear hyperfine structure is observed in the liquid solutions, Isotopic substitution csperiments proye that nuclear hyperfine intcructiorl is the main source of line broadening in the ESR of these low-temperature chars. The identities and reactions of the free radicals art discussed.
๐ SIMILAR VOLUMES
Electron spin resonance studies of the pyrolysis of aromatic hydrocarbons in liquid media have been continued. The method applied previously to the compound acenaphthylene has been extended to additional aromatic hydrocarbon systems including 9,9'-bifluorene, Ag,9'-bifluorene, periflanthene, and der
scattering at the boundaries is one of the causes and possibly the dominant one for the observed negative magnetoresistance. 161. Non-linear conduction in graphite at high electric field S. Mizushima (School of En~~e~~g, K&o ~n~ve~~, Tokyo, &pan). Saturation of current in graphite at high electric
The use of electron spin resonance spectrometry with a modern instrument is described for the determination of polynuclear aromatic hydrocarbons (PAHs) down to nanogram levels, after adsorption on calcined silica/alumina. A single PAH or the total number of moles of PAHs can be determined. Implicati
Carbon films deposited on Pyrex, silica and alumina substrates have free spin concentrations similar to those found for chars. The results of heat treatment show that a maximum in the spin concentration occurs at a heat treatment temperature of about 150ยฐC and that when silica and alumina substrates