960化工网
Local and global aromaticity in a molecular carbon nanobelt: insights from magnetic response properties in neutral and charged species†
Physical Chemistry Chemical Physics Pub Date : 01/08/2018 00:00:00 , DOI:10.1039/C7CP08323H
Abstract

The formation of carbon nanobelt made exclusively from fused benzene rings has recently been achieved. Our results reveal an interesting shift from a local aromatic character constrained in each of the six aromatic Clar sextets (6π-electron circuit) to a global aromatic character in charged species (+2 and −2) involving the overall π-circuit from the molecular nanobelt. This demonstrates the suppression of the local aromatic character in favor of a global aromaticity by selecting the oxidation state of the carbon nanobelt, giving rise to a shielding cone extended within the structure.

Graphical abstract: Local and global aromaticity in a molecular carbon nanobelt: insights from magnetic response properties in neutral and charged species
平台客服
平台客服
平台在线客服