Nonplanar Aromatic Compounds. 8.<sup>1</sup> Synthesis, Crystal Structures, and Aromaticity Investigations of the 1,<i>n</i>-Dioxa[<i>n</i>](2,7)pyrenophanes. How Does Bending Affect the Cyclic π-Electron Delocalization of the Pyrene System?
作者:Graham J. Bodwell、John N. Bridson、Michal K. Cyrañski、Jason W. J. Kennedy、Tadeusz M. Krygowski、Michael R. Mannion、David O. Miller
DOI:10.1021/jo0206059
日期:2003.3.1
distortion from planarity of the pyrene system influences its pi-electron delocalization was investigated by using two quantitative descriptors of aromaticity based on geometry (HOMA) and magnetism (magnetic susceptibility and NICS). Both methods suggest that the aromaticity of the pyrene moiety is diminished only slightly upon increasing the bend angle theta from 0 degrees to 109.2 degrees.