V2EX aprotic

Aprotic

定义 Definition

aprotic(非质子性的):在化学中指不提供可解离的质子(H)的物质,常用于描述溶剂(如 DMSO、DMF、乙腈等)。也常见于“aprotic solvent(非质子溶剂)”。(另有更少见的扩展用法,但最常用义项为溶剂性质。)

发音 Pronunciation (IPA)

/eprtk/

例句 Examples

Aprotic solvents don’t donate protons.
非质子溶剂不会提供质子(H)。

In an aprotic polar solvent, the nucleophile is less solvated, so the reaction can proceed faster.
在极性非质子溶剂中,亲核试剂受到的溶剂化更弱,因此反应可能进行得更快。

词源 Etymology

a- 表示“无、非”(否定前缀),protic 来自 proton(质子),整体字面意思是“不含(可供给)质子的”。在有机化学与物理化学语境中,常用来区分能否进行质子供给/氢键供体作用的溶剂类型。

相关词 Related Words

文学与经典著作中的用例 Literary Works

  • Organic Chemistry(Clayden, Greeves & Warren)讨论极性非质子溶剂对亲核取代等反应速率的影响时频繁出现
  • March’s Advanced Organic Chemistry(March)在反应机理与溶剂效应章节中使用 “aprotic”
  • Atkins’ Physical Chemistry(Atkins)在溶液性质、氢键与溶剂化相关内容中出现
  • Vogel’s Textbook of Practical Organic Chemistry(Vogel)在实验溶剂选择与性质描述中出现
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