homolysis

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Related to Homolytic: Homolytic fission

homolysis

[hə′mäl·ə·sis]
(organic chemistry)
References in periodicals archive ?
In the event of mechanochemical devuleanization of vulcanized SBR by TESPT in an open roll mixing mill, temperature is generated due to tremendous mechanical shearing forces and consequently, homolytic cleavage of S-S bonds (bond energy 22.
Homolytic decomposition of the free base dissolved in the LDL particle gave rise primarily to carbon-centered alkyl radicals that were immediately converted, due to the presence of oxygen, into alkyl peroxyl radicals without generating [H.
According to these authors, it begins with the absorption of UV light by the polymer, or by another component of the lining, producing a high energy excited state, capable of resulting in homolytic bond scission, generating free radicals.
We initially thought that the inherent absorbance of blood would be high enough to protect the endogenous RSNO species from photodecomposition (via 550-600 nm light, which causes homolytic cleavage of the S-N bond (5)), but we have discovered that this is not the case.
11 and 12) to induce homolytic breakage of the macromolecular chains to form macroradicals.
The photoinitiators that undergo Norrish Type I reactions photolyze through a homolytic fragmentation mechanism or through a-cleavage, and thereby directly form free radicals capable of initiating polymerization.
H]2 reactions ([dagger]) --Biomolecular reaction involving homolytic attack of a radical on a molecule.
A substantial chapter follows on the wide range of reagents and methods of aromatic nitration, covering the areas of acid-catalyzed electrophilic nitration, homolytic nitration, and nucleophilic nitration.
a) Homolytic cleavage of the S-S bond of TESPT, (b) Breaking of polymer chain as well as cross-link bonds and radical capping reaction by fragmented devulcanizing agent during mechanochemical devulcanization of SBR vulcanizates, and (c) Silica reinforcement mechanism in ReVulcSBR vulcanizate.
In present paper the substituent effect onreaction enthalpies of homolytic (HAT mechanism)and heterolytic twostep (SPLET and SETPT) mechanisms of OH bond cleavage for mono substituted Ferulic Acids were investigated in gas phase and water.
2] splitting by Ni-rubredoxin, which had been prepared before the structure of the Ni-Fe center was elucidated, could either be homolytic (e.
Photoinduced homolytic N-O bond cleavage in N-alkoxyheterocycles has been shown to be an efficient pathway to oxygen-centered radicals and/or aromatic radical cations.