One-Electron-Addition to Pentavalent Phosphorus with the Phosphorus-Chlorine Bond as Acceptor Introducing a Fundamental Distinction in Substitution Mechanism between S<sub>N</sub>2(P) and S<sub>N</sub>2(C)
One-Electron-Addition to Pentavalent Phosphorus with the Phosphorus-Chlorine Bond as Acceptor Introducing a Fundamental Distinction in Substitution Mechanism between S<sub>N</sub>2(P) and S<sub>N</sub>2(C)作者机构:Kasteel Twikkelerf 94TilburgThe Netherlands
出 版 物:《Open Journal of Physical Chemistry》 (物理化学期刊(英文))
年 卷 期:2019年第9卷第3期
页 面:182-191页
主 题:Pentavalent Phosphorus and Carbon Compounds σ*-Electron-Addition Single-Crystal Electron Spin Resonance (ESR) Model and Ab Initio Calculations Differences in SN2(C) vs. SN2(P) Mechanism
摘 要:An electron-addition, under single-crystal conditions, to pentavalent phosphorus compounds as Cl-P (=O, S) Y, Z with the P-Cl bond as electron-accepting group, is selected as an additional model for SN2(P) like reactions. It is demonstrated that the geometric information stored in the tetrahedral configuration (substrate) can be transmitted in the corresponding trigonal bipyramidal (TBP) state for nucleophilic substitution. In this article, we focus on these specific mechanistic aspects of carbon and phosphorus. We consider our study as a contribution to the significance of these (bio)chemical intermediates.