N-substituted) pentaiodobenzenes using site-selective nucleophilic aromatic substitution (SNAr) reactions. Single-crystal X-ray diffraction analysis and theoretical calculations of thus synthesized pentaiodobenzenes reveal that their highest occupied molecular orbital (HOMOs) are composed of circularly delocalized σ-symmetric orbitals, as found in hexa-substituted benzenes bearing heavy atoms such as selenium
摘要:我们报道了利用位点选择性亲核芳香取代(SNAr)反应合成氧和氮取代(O 和 N 取代)五
碘苯。由此合成的五
碘苯的单晶 X 射线衍射分析和理论计算表明,其最高占据分子轨道 (HOMO) 由圆形离域 σ 对称轨道组成,如在带有
硒和
碘等重原子的六取代苯中发现的那样。