Related Experiment Video
Updated: Jan 17, 2026

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
Curved Nanographene Featuring Two sp3 Stereocenters via Oxidative Cyclodehydrogenation with Aryl Rearrangement
Ling Chai1, Kang Li2, Jiang-Feng Xing2
1College of Chemistry and Materials Engineering, Huaihua University, Huaihua, Hunan 418000, China.
Abstract:
Curved nanographene 1, featuring two sp3 stereocenters, was synthesized through a Scholl-type oxidative cyclodehydrogenation accompanied by an unexpected aryl rearrangement. Single-crystal X-ray diffraction revealed that two sp3 carbons in the fused polycyclic skeleton induce pronounced distortion, enforcing an almost orthogonal orientation between the two aromatic sheets. These stereocenters endow 1 with inherent chirality and remarkable configurational stability. The enantiomers of 1 were successfully resolved and displayed well-defined, mirror-image circular dichroism spectra.
Related Concept Videos
Aromatic Hydrocarbon Anions: Structural Overview
Due to the absence of continuous...
Radicals: Electronic Structure and Geometry
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group...
Thermal and Photochemical Electrocyclic Reactions: Overview
Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview

