The VSEPR model has well-established limitations in its ability to represent accurate molecular and electronic geometries of simple molecules, which can create a significant need for students to relearn structure and bonding concepts in organic chemistry. We present an alternate method for describing molecular geometries and electronic structures to students that is far more consistent with experimental observations than VSEPR. Our alternate method of teaching structures extends VSEPR to account for conjugation to adjacent π-systems and the experimentally observed nature of lone pairs, which is supported by computational chemistry via WebMO’s HTML-export feature. If implemented, it allows students to reconcile hybridization, valence bond theory, molecular orbital theory, and resonance structures into a single coherent picture of electronic structure and bonding for organic molecules.

中文翻译：

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VSEPR-Plus：正确的分子和电子结构可以导致更好的学生概念模型

VSEPR模型在表示简单分子的准确分子和电子几何形状的能力方面已建立了完善的局限性，这可能使学生重新学习有机化学中的结构和键合概念产生了巨大的需求。我们提供了一种向学生描述分子几何结构和电子结构的替代方法，该方法与实验观察结果相比比VSEPR更为一致。我们的教学结构的替代方法将VSEPR扩展为考虑到与相邻π系统的共轭以及实验对孤对的本质的影响，这是通过WebMO的HTML导出功能通过计算化学来支持的。如果实施，它可以让学生调和杂交，价键理论，分子轨道理论，