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.
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