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通过对硫、磷、氯原子结构的分析,指明这些元素的正酸根离子能形成正四面体构型的原因可能与它们的d_π-p_π键有关。而正四面体结构的铵离子应与其四个等效的N-H(σ)键相关联。既可帮助学生对有关知识的深刻理解和准确掌握,也为培养学生的创新意识提供了范例。
The analysis of the atomic structure of sulfur, phosphorus and chlorine shows that the positive acid ions of these elements can form regular tetrahedral structure probably due to their d_π-p_π bond. While the quaternary ammonium ion should be associated with its four equivalent N-H (σ) bonds. It not only helps students to understand and master the related knowledge well, but also provides an example for cultivating students’ innovative awareness.