Electron paramagnetic resonance and theoretical study of dibenzylmercury and diphenylmercury radical cations
作者:Christopher J. Rhodes、Christopher Glidewell、Hikmet Agirbas
DOI:10.1039/ft9918703171
日期:——
Radical cations of dibenzylmercury and its p-X derivatives (X = Me, MeS, MeO, Cl) and of diphenylmercury and its p-X derivatives (X = Cl, Et, Me, MeO) have been generated by γ-radiolysis of dilute solutions of the parent compounds in CFCl3 matrices at 77 K. The EPR results for the dibenzylmercury series show all members to be σu-radical cations with singly occupied molecular orbitals approximating
二苯甲基汞及其p -X衍生物(X = Me,MeS,MeO,Cl)和二苯汞及其p -X衍生物(X = Cl,Et,Me,MeO)的自由基阳离子是通过γ-稀溶液的辐射分解而产生的在CFCL的母体化合物的溶液3点在77K的EPR结果为dibenzylmercury一系列矩阵显示所有成员能够σ û与单独使用阳离子-基团占据分子轨道近似于形式(I)。199的平行和垂直| +½>分量汞谱几乎是重合的,给出了一条强烈的低场各向同性线:这显示了各向异性双峰偶合的典型子结构,由单个溶剂氟原子产生,但对于氟利昂基质中的自由基阳离子超超细偶合来说,其空前大。当使用CCl 4矩阵重复实验以确认19 F分配时,缺少这些附加的偶联。