| 释义 |
disproportioˈnation Chem.
[f. disproportion n. or v. + -ation.]
A transfer of atoms or valency electrons between two or more identical molecules or ions, resulting in molecules or ions containing the same elements in different proportions or in different oxidation states.
1929E. E. Reid Coll. Org. Chem. xxxiv. 550 Reactions of this sort have received the name ‘disproportionation’. 1939Jrnl. Amer. Chem. Soc. LXI. 2769/2 The identification of tri-p-tolymethane..and a polymeric residue as the products of disproportionation of tri-p-tolylmethyl..makes it possible to suggest a mechanism for the reaction. 1946Nature 9 Nov. 673/1 The disproportionation proceeds to about one third of completion, at which point an equilibrium is set up... Disproportionation occurs during the fluorination. 1960Times Rev. Industry Sept. 55/1 Disproportionation of the monochloride into metallic aluminium. 1969Nature 19 Apr. 257/1 Disproportionation of MSiO3 composition into M2SiO4 olivine yields SiO2. |