V2EX isomer

ISOMER

定义 Definition

isomer(同分异构体):指分子式相同,但原子排列方式或空间结构不同的化合物,因此性质可能不同。(常见于有机化学;也可区分结构异构、立体异构等类型。)

发音 Pronunciation

/asmr/

例句 Examples

An isomer has the same molecular formula as another compound but a different structure.
同分异构体与另一种化合物具有相同的分子式,但结构不同。

Although the two substances are isomers, their different spatial arrangements lead to distinct boiling points and biological effects.
尽管这两种物质互为同分异构体,但由于空间排列不同,它们的沸点和生物学效应会明显不同。

词源 Etymology

来自德语 Isomerie,源于希腊语 isos(相同的)+ meros(部分、份),字面含义是“由相同部分构成”,用来表达“组成相同但排列不同”的化学概念。

相关词 Related Words

文学作品 Literary Works

  • 《Silent Spring》(《寂静的春天》) Rachel Carson:讨论化学物质在环境与生物体中的作用时,会涉及分子结构差异(包括异构现象)对毒性与效应的影响。
  • 《The Double Helix》(《双螺旋》) James D. Watson:在描述分子生物学与化学基础概念时,会出现与分子结构、立体化学相关的术语体系,其中包括“isomer”一类词汇。
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