单词 | tautomer |
释义 | tautomern. Chemistry. Any one of the forms of a tautomeric compound in relation to another. ΘΚΠ the world > matter > chemistry > isomerism > [noun] > structural isomerism > tautomerism > tautomer tautomer1898 1898 Trans. Royal Soc. Canada 4 iii. 91 Conrad Laar..divides tautomers according to the number of atoms over which the labile part would move. 1939 L. Pauling Nature Chem. Bond xii. 407 Each of these tautomers in its normal state is represented..by a resonance hybrid of this structure and others. 1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) xii. 620 The cyclo-metaphosphimic acids..are tautomers of the cyclo-polyphosphazene hydroxides. 2006 J. M. Hornback Org. Chem. (Internat. Student ed.) xxvii. 1171 Watson's officemate was an expert on X-ray structures of small organic molecules and knew that the keto isomers [of DNA bases] were the predominant tautomers. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < n.1898 |
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