Synthesis, Characterization, and Electronic Structures of Porphyrins Fused with Polycyclic Aromatic Ring Systems
作者:Tetsuo Okujima、John Mack、Jun Nakamura、Gugu Kubheka、Tebello Nyokong、Hua Zhu、Naoki Komobuchi、Noboru Ono、Hiroko Yamada、Hidemitsu Uno、Nagao Kobayashi
DOI:10.1002/chem.201602213
日期:2016.10.4
A series of porphyrins fused with acenaphthylene, phenanthroline, and benzofluoranthene polycyclic aromatic rings were prepared by means of a 3+1 porphyrin synthesis approach and subsequent retro‐Diels–Alder reaction of bicyclo[2.2.2]octadiene‐fused precursors. Analysis of the magnetic circular dichroism spectra and the results of time‐dependent DFT calculations are used to identify the reasons for
通过3 + 1卟啉合成方法和随后的双环[2.2.2]辛二烯稠合前体的Diels-Alder逆反应,制备了一系列与,、菲咯啉和苯并荧蒽多环芳环稠合的卟啉。通过分析圆二色性光谱和时间依赖DFT计算的结果,可以确定在产品Q波段的波长和相对强度中观察到趋势的原因。Michl的周长模型用作解释边界π分子轨道相对能量变化的概念框架。