V2EX tetrahedral

Tetrahedral

定义 Definition

四面体的;呈四面体结构的。 常用于化学、晶体学与几何学,指由四个三角形面组成的形状,或分子/配位结构中原子(或键)指向四个顶点的空间排列(如甲烷的四面体构型)。

发音 Pronunciation (IPA)

/ttrhidrl/

例句 Examples

The molecule has a tetrahedral shape.
这个分子呈四面体形状。

In organic chemistry, the carbon atom in methane is tetrahedral, with bond angles close to 109.5 degrees.
在有机化学中,甲烷中的碳原子是四面体构型,键角接近 109.5 度。

词源 Etymology

tetra- 来自希腊语,意为“”;**-hedral** 与“面/座”(源自希腊语 hedra,意为“座位、基座”,在几何中引申为“面”)相关。合起来表示“有四个面的”,即“四面体的”。

相关词 Related Words

文学与典籍中的用例 Literary Works

  • The Nature of the Chemical Bond(Linus Pauling)讨论分子结构与键角时常涉及四面体构型。
  • Organic Chemistry(L. G. Wade 等常见教材版本)在讲 sp 杂化与构型时频繁使用 “tetrahedral”。
  • Introduction to Solid State Physics(Charles Kittel)在晶体结构与配位多面体语境下会出现相关描述。
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