单词 | protonation |
释义 | protonationn. Chemistry. The action or process of protonating a substance, molecule, group, etc.; the state or condition of being protonated. ΘΚΠ the world > matter > chemistry > chemical bonding > [noun] > covalent bonding > co-ordinate bond > protonation protolysis1934 protonation1948 1948 Jrnl. Biol. Chem. 175 249 The effectiveness of the positively charged ammonium group in preventing appreciable protonation of the carboxyl group of the l-leucine cation in 100 per cent sulfuric acid. 1976 Sci. Amer. June 43/3 The release and uptake of protons by intact cells was clearly different from the change in protonation observed during the photoreaction of isolated purple membrane. 1984 J. Pennington in C. A. Heaton Introd. Industr. Chem. viii. 306 Many industrial reactions of olefins involve protonation to give a carbonium ion. 1995 Nature 12 Oct. 481/1 G. Olah has suggested that diprotonated water, H4O2+, might be formed as an intermediate in superacid media by further protonation of H3O+. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1948 |
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