Compared with metal fuel, which has a small heat gradient, UO2 fuel has a large heat gradient between the center of the fuel and the outer edge. This large heat gradient leads to differences in the oxygen-to-metal (O/M) ratio at different locations in the fuel. The O/M ratio is ...
Importance of Singlet Oxygen in Photocatalytic Reactions of 2-Aryl-1,2,3,4-tetrahydroisoquinolines Using Chalcogenorosamine Photocatalysts Aerobic oxidationof 2-aryl-1,2,3,4-tetrahydroisoquinolines wasachieved photocatalytically using chalcogenorosamine photocatalystsand LED irradiation. The photocatalytic aza...
This information was used to assess the site of protonation of 3-nitro- and 4-nitropyrazoles in the gas phase: at equilibrium, these compounds were protonated on the ring nitrogen rather than on the oxygen of the nitro group. The basicity of simple 4,5-dihydropyrazoles (Δ2-pyrazolines)...
A numerical analysis is made of the extraction of energy from a mixture of singlet oxygen and atomic iodine by repeated passage of a 10 ns laser pulse through an amplifier 1 m long. Production of atomic iodine by photolysis of the iodide... DV Ishkov,VS Pazyuk,MP Frolov,... - 《Quantu...
Compared to functionalization of a C–H bond α- to ether oxygen, α- to carbonyl, or at a benzylic position, functionalization of unactivated hydrocarbons is difficult and often requires high temperatures, a transition-metal catalyst, or a superstoichiometric quantity of volatile, toxic, and ...
What is an iodine and starch complex? What chemical element is Sb? Is tritium an element? Are all synthetic elements actinides? Is oxygen an atom, a molecule, or an element? What is the chemical element plumbum? Is einsteinium malleable? What type of chemical element is chlorine? How many...
(1775–1836). On 29 November 1813, Dersormes and Clément made public Courtois’s discovery. They described the substance to a meeting of the Imperial Institute of France. On December 6, Gay-Lussac announced that the new substance was either an element or a compound of oxygen.[11][12][...
The simplest compound of iodine is hydrogen iodide, HI. It is a colourless gas that reacts with oxygen to give water and iodine. Although it is useful in iodination reactions in the laboratory, it does not have large-scale industrial uses, unlike the other hydrogen halides. Commercially, it...
Radical besides ionic induced oligomerization, however, seem to occur since traces of oxygen increase the organic product yields. The chain length of oligomers formed is strongly reduced in the presence of rare gases, oxygen and especially of H-acidic compounds (HX, X = OH, OCH, OCH). Latter...
For instance, cesium iodide (CsI) is one of the simplest and most representative ionic solids, and extensive theoretical and experimental studies have been carried out7–15. CsI exhibits variety of interest- ing phenomena such as pressure involved metallization and superconductivity under high pressure...