V2EX carboxyl

Carboxyl

Definition|释义

(化学)羧基:一种常见的官能团,结构为 COOH,由羰基(C=O)和羟基(OH)组成;常见于羧酸及许多生物分子中。(另有相关词:carboxylate 指“羧酸盐/羧酸根”。)

Pronunciation|发音(IPA)

/krbksl/

Examples|例句

The carboxyl group makes the molecule acidic.
羧基使这种分子呈酸性。

In amino acids, the carboxyl group can donate a proton, affecting the protein’s structure and function.
在氨基酸中,羧基可以释放一个质子,从而影响蛋白质的结构与功能。

Etymology|词源

carboxyl 来自 **carb-**(与 carbon“碳”相关)和 -oxyl(与 oxygen“氧”相关的构词成分),用来指代一种“含碳与氧的特定基团”。该术语在有机化学发展过程中被固定,用于描述 COOH 这一关键官能团。

Related Words|相关词汇

In Literature|文学与著作中的用例

  • Organic Chemistry(Paula Yurkanis Bruice):讨论羧基在羧酸与衍生物反应中的作用。
  • Lehninger Principles of Biochemistry(Lehninger《生物化学原理》):在氨基酸、脂肪酸与代谢章节中频繁出现 carboxyl。
  • Morrison and Boyd Organic Chemistry(Morrison & Boyd《有机化学》):用于讲解官能团、酸碱性与反应机理。
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