英语词汇“racemization”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	racemization
释义	racemization rac·e·mi·za·tion R0005100 (răs′ə-mĭ-zā′shən)n. Conversion of an optically active substance to a racemic form. rac•e•mi•za•tion (ˌræs ə məˈzeɪ ʃən, reɪˈsi mə-, rə-) n. the conversion of an optically active substance into an optically inactive mixture of equal amounts of the dextrorotatory and levorotatory forms. [1895] Translations рацемизация Racemization racemization [‚rā·sə·mə′zā·shən] (organic chemistry) A process by which an optically active form of a substance is converted into a racemic mixture. Racemization the formation of an optically inactive product (racemate) as a result of a reaction involving an asymmetric atom. Racemization is caused by the appearance of an intermediate compound (or transition state), not itself possessing an asymmetric atom, which has an equal probability of yielding optical antipodes. The antipodes, in turn, form racemic compounds. The racemization of carboxylic acids, for example, involves enolization: Racemization occurs in reactions leading to the formation of the flat carbonium ion and in reactions that are carried out through free radicals. racemization racemization [ra″sĕ-mĭ-za´shun] the transformation of one-half of the molecules of an optically active compound into molecules that possess exactly the opposite (mirror-image) configuration, with complete loss of rotatory power because of the statistical balance between equal numbers of dextrorotatory and levorotatory molecules. ra·ce·mi·za·tion (rā'sē-mi-zā'shŭn, rās-mi-), Partial conversion of one enantiomorph into another (as an l-amino acid to the corresponding d-amino acid) so that the specific optical rotation is decreased, or even reduced to zero, in the resulting mixture. ra·ce·mi·za·tion (rā'sĕ-mī-zā'shŭn) Partial conversion of one enantiomorph into another (as an l-amino acid to the corresponding d-amino acid) so that the specific optic rotation is decreased, or even reduced to zero, in the resulting mixture.
随便看	fecgp fech fecha fecha posible de parto fechimm fechner fechner color fechner colors fechner colour fechner fraction fechner, gustav t fechner, gustav t. fechner, gustav theodor fechner law fechner paradox fechner's law fechner's paradox fechner-weber law fechral fecht fechter fechter's finger flicking frolic fechtner syndrome feci fecial

　

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2025/3/20 11:48:36