Related Experiment Video
Updated: May 10, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Unveiling the stereoelectronic properties of a triphenylene-based tris N-heterocyclic carbene
Sergio Gonell1, Roberto G Alabau, Macarena Poyatos
1Dpt. de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Vicente Sos Baynat s/n, 12071-Castellón, Spain.
Abstract:
Two rhodium complexes with a triphenylene-based tris-NHC have been fully characterized. DFT and electrochemical studies suggest that the electronic communication between the metals is very weak, and that the electron donating properties of the ligand are very similar to those shown by its benzimidazolylidene analogue.
Related Concept Videos
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group with both...
Thermal and Photochemical Electrocyclic Reactions: Overview
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Thermal Electrocyclic Reactions: Stereochemistry
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
Five-Membered Heterocyclic Aromatic Compounds: Overview
Aromatic Hydrocarbon Anions: Structural Overview
Due to the absence of continuous overlap of p...

