托尼试剂中的结合强度和相互作用能量:从基于分子静电电位的参数的洞察力
Remya Lohithakshamenon1, Kavanal P Prasanthkumar2, Cherumannil Femina1
1Department of Chemistry, Farook College, Kozhikode 673632, India.
The journal of physical chemistry. A
|January 22, 2024
概括
超价 (III) 托尼试剂是有效的三甲基化剂. 在I-CF3组的碳原子上的分子静电电位 (MESP) 量化了电子影响,预测了试剂的反应性和相互作用.
科学领域:
- 有机化学 有机化学
- 计算化学计算化学
- 材料科学 材料科学 材料科学
背景情况:
- 托尼试剂是广泛用于三甲基化剂的高价 (III) 复合物.
- 这些试剂的性能受到 cis 和 trans 电子因素的显著影响.
研究的目的:
- 在I-CF3部分的碳原子 (VC) 中引入分子静电电位 (MESP),作为Togni型试剂中量化cis和trans影响的参数.
- 将VC与重点反应性描述符相关联,例如异质结合解离能 (BDE) 和σ-孔相互作用.
主要方法:
- 对Togni试剂及其类型的计算分析.
- 在I-CF3组 (VC) 的碳原子上计算分子静电电位 (MESP).
- 测定异质结合解离能 (BDE) 和 σ-孔相互作用强度与核爱素 (Cl-,NMe3) 和布伦斯特德酸 (HCl,HSO3F).
主要成果:
- 在Togni型试剂中,VC有效量化了 cis 和 trans 电子效应.
- VC作为一个可靠的探测器,用于预测异质结合解离能 (BDE) 和整体反应性.
- 该研究使用MESP拓参数成功评估了与核素和与布伦斯特德酸的相互作用的s-孔相互作用.
结论:
- 参数VC为高价试剂的电子性质提供了宝贵的见解.
- 这种方法促进了改性Togni型试剂的合理设计,提高了活性和稳定性.
- MESP分析为理解和优化高价化学提供了强大的工具.
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