位阻效应 Steric effects

（重定向自Steric）

位阻效应（也叫空间效应、空间位阻效应、立体效应）是研究分子中不同基团间电子团重叠形成的电磁力而造成的分子结构或反应取向的立体化学分枝。广泛应用于有机化学中分子结构及反应机理的定性讨论，但在有些情况下可能导致偏差或谬误。

单词	steric
释义	steric /'sterɪk//'stɪərɪk/ 英汉-汉英词典 adj. 位的（副词sterically，异体字sterical）；（原子的）空间（排列）的词组 \| 习惯用语 steric hindrance 位阻，位阻现象 steric effect [化]立体效应（空间效应）英语例句库 Hyperconjugation not steric repulsion leads to the staggered s ... 而不是老的教科书提到的位阻效应。 As steric hindrance of the aryl amine decreased and nucleophilicity increased, occurrence of the transfor-mation reaction increased and herbicidal activity of the product decreased. 芳胺空间位阻越小,亲核性越强,副反应越容易发生,产物除草活性越低。声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。中文百科位阻效应 Steric effects （重定向自Steric）位阻效应（也叫空间效应、空间位阻效应、立体效应）是研究分子中不同基团间电子团重叠形成的电磁力而造成的分子结构或反应取向的立体化学分枝。广泛应用于有机化学中分子结构及反应机理的定性讨论，但在有些情况下可能导致偏差或谬误。英语百科 Steric effects 位阻效应（重定向自Steric） See also: intramolecular forces Steric effects arise from a fact that each atom within a molecule occupies a certain amount of space. If atoms are brought too close together, there is an associated cost in energy due to overlapping electron clouds (Pauli or Born repulsion), and this may affect the molecule's preferred shape (conformation) and reactivity.
随便看	interculturally Intercultural marriage INTERCULTURATION interculture intercumulus region Intercuneiform Intercuneiform articulations intercuneiform bone Intercuneiform joints Intercuneiform ligament intercuneiform ligament,dorsal intercuneiform ligament,interosseous intercuneiform ligament,plantar Intercuneiform ligaments intercupola intercur intercurred intercurrence intercurrences intercurrent intercurrent disease intercurrent infection intercurrently intercurrent relapse intercurring

steric /'sterɪk//'stɪərɪk/

位阻效应 Steric effects

Steric effects 位阻效应