Electronic Structures of Aromatic Ketyl Radicals and Related Hydrocarbon Radicals

Melatonin scavenges phenylglyoxylic ketyl radicals.

The antioxidant properties of melatonin were tested in this work by EPR technique. It was found that melatonin scavenges phenylglyoxylic ketyl radicals. Its effectiveness was 10-times lower than that of vitamin C. A new method of generation of phenylglyoxylic ketyl radicals by spontaneous decomposition of D,L-2,3-diphenyltartaric acid in propan-2-ol was used.

Aromatic Radicals - Acetylene Particulate Matter Chemistry

Enter UU (Unclassified Unlimited) or SAR (Same as Report). An entry in this block is necessary if the abstract is to be limited. Standard Form 298 Back (Rev. 8/98)

Oxygen Radicals and Related Species

As discussed in Chapter 1, around three billion years ago, life on Earth consisted of anaerobic microbes subsisting on the energy provided by cycles of electron transfer between prevalent populations of electron donors and acceptors. Potential donors were molecular hydrogen (H2), hydrogen sulfide (H2S) and methane (CH4), whose electrons were transferred to acceptors such as carbon dioxide (CO2)...

The secondary radicals of submodules

Let $R$ be a commutative ring with identity and let $M$ be an $R$-module. In this paper, we will introduce the secondary radical of a submodule $N$ of $M$ as the sum of all secondary submodules of $M$ contained in $N$, denoted by $sec^*(N)$, and explore the related properties. We will show that this class of modules contains the family of second radicals properly and can be regarded as a dual o...

Electronic Spectroscopy of Atmospheric Radicals Professor