单词	enantiomer
释义	enantiomer /ɪˈnantɪə(ʊ)mə / /ɛˈnantɪə(ʊ)mə/ noun Chemistry Each of a pair of molecules that are mirror images of each other.Such isomers are called enantiomers and molecules that have enantiomers are said to be chiral or to show chirality.... As with hands, chiral molecules can occur in two different forms, called enantiomers, which are mirror-images of one another. One of the principal barriers to high yield is the creation of both enantiomers of a chiral compound, when only one is desired. Derivatives enantiomeric /ɪnantɪə(ʊ)ˈmɛrɪk/ /ɛnantɪə(ʊ)ˈmɛrɪk/ adjective ... The reactions proceed at room temperature without solvent, giving enantiomeric excesses of 99.8 per cent. There is no symmetry to this molecule, and it exists in the two enantiomeric forms. This enantiomerically enriched catalyst could then act to promote the formation of amino acids with substantial enantiomeric excesses. enantiomerically adverb ... The flavour and fragrance industry takes advantage of chirality - by being able to produce enantiomerically pure compounds, manufacturers can not only expand their product ranges but also guarantee customers product uniformity. The phosphine that was used was not enantiomerically pure, but even so the resulting product showed a 15 per cent enantiomeric excess. Their efficiency, together with that of the now highly optimised extraction processes, mean that the plant remains unchallenged as the commercial source of enantiomerically pure morphine and codeine. Origin 1930s: from Greek enantios 'opposite' + -mer.
随便看	germinal disk germinal epithelium germinal layer germinally germinal membrane germinal spot germinal vesicle germinant germinate germination germinative germinator germing germiniparous Germiston germ-laden germ layer germless germ life germ line germling germon germophobe germophobia germophobic

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