V2EX d orbital

D Orbital

Definition / 释义

d 轨道(d orbital):原子中角量子数 l = 2 的电子轨道类型,常见于过渡金属元素的价层与成键、磁性、颜色以及晶体场分裂等现象密切相关。常见的五个 d 轨道形状包括 dxy、dxz、dyz、dxy、dz。(在不同语境中也会涉及“d 电子”“d 轨道能级”等扩展用法。)

Pronunciation / 发音

/di rbtl/

Examples / 例句

The electron is in a d orbital.
这个电子处在一个 d 轨道中。

In an octahedral complex, the d orbitals split into two energy levels, which strongly affects the compound’s color and magnetism.
在八面体配合物中,d 轨道会分裂成两个能级,这会显著影响化合物的颜色和磁性。

Etymology / 词源

orbital 源自拉丁语 orbita(轨道、车辙),在科学语境中引申为“围绕核的电子分布区域”。字母 d 来自早期光谱学对谱线的分类(s、p、d、f),后与量子力学中的角量子数对应:d 轨道对应 l = 2。因此,“d orbital”字面上可理解为“d 型的电子轨道”。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Linus Pauling The Nature of the Chemical Bond(《化学键的本质》):讨论原子轨道与成键概念,常涉及 d 轨道在配位化学中的角色。
  • Peter Atkins Physical Chemistry(《阿特金斯物理化学》):在量子化学与原子结构章节中讲解轨道(含 d 轨道)与能级。
  • Ira N. Levine Quantum Chemistry(《量子化学》):系统推导原子轨道与量子数,包含 d 轨道的性质与表示。
  • David J. Griffiths Introduction to Quantum Mechanics(《量子力学导论》):在角动量与氢原子解的相关内容中,为理解 d 轨道提供理论基础。
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