V2EX molecular geometry

Molecular Geometry

释义 Definition

分子几何(分子构型):指分子中原子在三维空间中的排列方式与形状,常用来解释分子的性质与反应性(如极性、键角、沸点等)。

发音 Pronunciation (IPA)

/mlkjlr dimtri/

例句 Examples

Molecular geometry affects whether a molecule is polar.
分子几何会影响一个分子是否具有极性。

Using VSEPR theory, we can predict the molecular geometry of ammonia as trigonal pyramidal, which helps explain its reactivity and hydrogen bonding.
利用价层电子对互斥(VSEPR)理论,我们可以预测氨分子的分子几何为三角锥形,这也有助于解释它的反应性与氢键作用。

词源 Etymology

molecular 来自 molecule(“分子”),其源头与拉丁语 moles(“团块、质量”)相关;geometry 源自希腊语 *geo-*(“地”)+ -metry(“测量”)。合在一起字面意思是“对分子形状与空间排列的测量/描述”,在化学语境中专指分子的三维结构。

相关词 Related Words

文学与名著中的使用 Notable Works

  • General Chemistry(Linus Pauling 等相关化学教育著作传统中常见此术语)
  • Atkins’ Physical Chemistry(Peter Atkins)
  • Organic Chemistry(Clayden, Greeves, Warren 等)
  • Chemistry: The Central Science(Brown, LeMay 等)
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