The straightforward synthesis of two new classes of core-extended perylene chromophores, dibenzocoronene tetracarboxdiimide and indenoperylene dicarboxmonoimide, proves that directional enlargement of the aromatic π-system leads to tailored bathochromic and hypsochromic shifts.
对两种新的核扩展
芘类发色团——二苯并
冠醚四羧二
酰亚胺和
茚并
芘二
羧酸单
酰亚胺——的直接合成表明,芳香π系统的定向扩大可导致定制的向浅色和向深色偏移。