V2EX coordination sphere

Coordination Sphere

定义 Definition

coordination sphere(配位球/配位层):配位化合物中,以中心金属离子/原子为核心、与其直接配位的配体(以及有时包含紧密相关的离子对)所构成的整体环境。最常见用法指“内配位球”(金属配体直接键合的部分);与之相对的是“外配位球”(不直接配位、仅以静电作用等方式存在的对离子/溶剂分子)。

发音 Pronunciation (IPA)

/kordnen sfr/

例句 Examples

The chloride ions are outside the coordination sphere.
氯离子位于配位球之外。

In aqueous solution, ligand substitution can change the coordination sphere and therefore the complex’s color and reactivity.
在水溶液中,配体取代会改变配位球,从而影响配合物的颜色与反应性。

词源 Etymology

coordination 源自拉丁语 coordinare(“使协调、排列有序”),在化学中引申为“以配位键方式与中心原子结合”;sphere 来自希腊语 sphaira(“球体”),这里用“球/层”的空间隐喻来表示围绕金属中心的近邻结构区域。因此 coordination sphere 直译可理解为“围绕中心发生配位的那一层(区域)”。

相关词 Related Words

文献作品 Literary Works

  • Inorganic Chemistry(Shriver & Atkins)
  • Advanced Inorganic Chemistry(Cotton & Wilkinson)
  • Concise Inorganic Chemistry(J. D. Lee)
  • IUPAC Nomenclature of Inorganic Chemistry(Red Book,《无机化学命名法》)
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