单词	stereoisomer
释义	stereoisomer /ˌstɛrɪəʊˈʌɪsəmə / /ˌstɪərɪəʊˈʌɪsəmə/ noun Chemistry Each of two or more compounds differing only in the spatial arrangement of their atoms.Enantiomers are stereoisomers whose molecules are nonsuperposable mirror-images of each other.... Most importantly, stereoisomers are not spatially superimposable. For instance, in the case of the two active stereoisomers we showed that only the stereochemistry at the amine and hydroxyl functions on the scaffold were important - the third chiral centre is not. Derivatives stereoisomeric /ˌstɛrɪəʊʌɪsəˈmɛrɪk/ adjective ... As tartaric acid possesses two stereogenic carbon atoms, it exists in three stereoisomeric forms. The structural and thermodynamic features of these stereoisomeric adducts are also discussed in relation to their reported low susceptibilities to nucleotide excision repair. However, significant differences in the structure of the two linked channels, which arise from a different orientation of the two stereoisomeric forms of the dioxolane ring with respect to the axis of the pore, were identified. stereoisomerism noun ... The second major type of isomerism is stereoisomerism. Structural isomerism is not a form of stereoisomerism, and is dealt with on a separate page. Thereby, stereochemistry and stereoisomerism have been discussed on a common basis.
随便看	Indian peach Indian pear Indian pepper Indian physic Indian pink Indian pipe Indian plantain Indian plum Semite Semitic semitone semi-trailer semi-transparent semi-tropical semi-tropics semivowel semiweekly Semmelweis, Ignaz Philipp semmit semolina semper fidelis sempervivum sempiternal sempiternally sempiternity

英语词典包含243303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。