Differ in the way in which the atoms within the molecule are oriented in space are called stereoisomer. 分子中原子在空间定向的方式不同的化合物叫做立体异构体。
The calculation results show that the EA is a new optical stereoisomer and whose great photosensitivity could be related to the chirality of EA molecules. 计算结果表明所制得的痂囊腔菌素A是一种新的光学活性对映体,由此推测痂囊腔菌素A的高光敏活性可能与手性结构特征有关。
The qi ( vital energy) studies on the analysis of stereoisomer of agarofurans by GC and GC-MS 沉香呋喃类立体异构体的气相色谱及气-质联用分析研究
Among these reactions of ClONO_2, the stereoisomer reaction is the hardest one. 而ClONO2异构为立体异构体的反应是最难进行的反应。
Because squamigerine is also apparently not identical to epitazettine, it was deduced to be the stereoisomer of tazettine, in which the B/ D or C/ D ring system was different from that of tazettine. 因为紫花石蒜碱又与epitazettine显然不同,所以推定它可能为B/D或C/D环系统结合不同于tazettine的立体异构体。