Multiply charged anions from molecules with extended π-systems
作者:Rainer Schenk、Klaus Müllen、Olof Wennerström
DOI:10.1016/s0040-4039(00)88569-x
日期:1990.1
been prepared by alkali metal reduction of molecules built from benzene rings joined by vinylene groups. Thus, a tetra(stilbenyl)ethylene can be reduced to an octaanion and a [28]paracyclophaneoctaene to three different anions, assigned as the tetra-, hexa-, and octaanion, respectively. The hexaanion, a cyclic 54 π-electron system, is diatropic.