V2EX dative bond

Dative Bond

释义 Definition

dative bond(也常称 coordinate bond / coordinate covalent bond):配位键给体-受体键。指一种共价键,其中成键的两电子都由同一个原子(给体 donor)提供,并共享给另一个原子或离子(受体 acceptor),常见于配合物路易斯酸碱反应中。

发音 Pronunciation (IPA)

/detv bnd/(英式)
/detv bnd/(美式)

例句 Examples

Ammonia forms a dative bond to boron trifluoride.
氨会与三氟化硼形成配位键。

In many metal complexes, ligands donate lone pairs to the metal center, creating dative bonds that strongly influence the complex’s geometry and reactivity.
在许多金属配合物中,配体把孤对电子提供给金属中心,形成配位键,从而显著影响配合物的几何构型与反应性。

词源 Etymology

dative 来自拉丁语 dativus,意为“与给予有关的”,对应语法中的“与格”(表示“给谁/向谁”)。在化学里借用这一“给予”的概念,强调电子对由给体“给予”受体来成键;bond 源自古英语 band(带子、捆绑物),引申为“连接、结合”。

相关词 Related Words

文学与经典著作 Literary Works

  • The Nature of the Chemical Bond(Linus Pauling)讨论化学键本质时涉及配位/给体-受体成键思想。
  • Atkins’ Physical Chemistry(Atkins 等)在化学键与分子结构、配合物相关章节中常出现相关概念与用法。
  • Chemistry of the Elements(Greenwood & Earnshaw)讲解配位化合物与金属-配体相互作用时常使用“dative/coordinate bond”表述。
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