Enhancing the Antiaromaticity of <i>s</i>-Indacene through Naphthothiophene Fusion
作者:Gabrielle I. Warren、Joshua E. Barker、Lev N. Zakharov、Michael M. Haley
DOI:10.1021/acs.orglett.1c01514
日期:2021.7.2
computationally through nucleus-independent chemical shift XY calculations and experimentally via nuclear magnetic resonance spectroscopy, X-ray crystallography, ultraviolet–visible spectrophotometry, and cyclic voltammetry, with the latter two indicating that this molecule possesses the lowest highest occupied molecular orbital–lowest unoccupied molecular orbital energy gap observed for heterocycle-fused
解决抗芳族化合物的不稳定性通常涉及用庞大的基团和/或芳环的融合进行保护,从而降低副亲性。我们报告了四种萘并噻吩稠合的s - indacene 异构体,其中一种比母体s- indacene更具抗芳香性。通过核独立化学位移 XY 计算和实验通过核磁共振光谱、X 射线晶体学、紫外-可见分光光度法和循环伏安法对这一令人惊讶的结果进行了计算,后两者表明该分子具有最低的最高占据分子观察到杂环稠合的茚-茚的轨道-最低未占分子轨道能隙。