| 释义 |
homolysis Chem.|həˈmɒlɪsɪs|
[f. homo- + -lysis.]
The splitting of a molecule into two neutral atoms or radicals.
1938[see heterolysis 2]. 1966W. A. Pryor Free Radicals ix. 119 Molecule-induced homolysis is postulated to occur when radicals are formed at an anomalously rapid rate from the interaction of nonradical species.
Hence homoˈlytic a., of the nature of or involving homolysis; homoˈlytically adv., by homolysis.
1941Homolytic [see heterolytic s.v. heterolysis]. 1952Sci. News XXVI. 57 A covalent bond may..break by homolytic fission, each of the electrons separating with one of the atoms, giving two free atoms, e.g.: H{b1}Cl→H{b1} + Cl{b1}. 1964N. G. Clark Mod. Org. Chem. xxv. 515 Heat and/or illumination first causes a molecule of chlorine to break homolytically into two chlorine atoms. |