Artikel

Structure‐Property Relationships for Potential Inversion from Electron Acceptors Based on Thiophene‐Fused Triptycene Quinones, 1,4‐Diketones and their Malononitrile Adducts

22.03.2024

The synthesis and properties of a series of 11,11,12,12-tetracyano-9,10-anthraquinodimethane (TCAQ) inspired electron acceptors based on thiophene-fused quinone and triptycene motifs is presented. This has yielded insights into structure-property relationships for establishing and modulating simultaneous two electron reduction processes in TCAQ analogues. These new compounds were synthesised using a Friedel-Crafts acylation between triptycene and thiophene-3,4-dicarbonyl chloride. Isomeric para-quinones featuring a [c]-fused thiophene on one side and a β,β- or α,β-fused triptycene on the other were isolated alongside a thiophene-3,4-diketone which bears two triptycene fragments. Knoevenagel condensation of these products with malononitrile produced a quinoidal bis(dicyanomethylene), an oxo-dicyanomethylene and an acyclic bis(dicyanomethylene). This series of new electron accepting molecules has been studied using X-ray crystallography and the implications of their 3D structures on NMR and UV/vis absorbance spectroscopy and cyclic voltammetry results have been ascertained with conclusions underpinned by computational methods.

Verwandte Artikel
Structure‐Property Relationships for Potential Inversion from Electron Acceptors Based on Thiophene‐Fused Triptycene Quinones, 1,4‐Diketones and their Malononitrile Adducts
In Kürze
Structure‐Property Relationships for Potential Inversion from Electron Acceptors Based on Thiophene‐Fused Triptycene Quinones, 1,4‐Diketones and their Malononitrile Adducts
Ehrungen, Karriere
Structure‐Property Relationships for Potential Inversion from Electron Acceptors Based on Thiophene‐Fused Triptycene Quinones, 1,4‐Diketones and their Malononitrile Adducts
Aus den Fachgruppen
Structure‐Property Relationships for Potential Inversion from Electron Acceptors Based on Thiophene‐Fused Triptycene Quinones, 1,4‐Diketones and their Malononitrile Adducts
EuChemS Policy Workshop „PFAS”
Structure‐Property Relationships for Potential Inversion from Electron Acceptors Based on Thiophene‐Fused Triptycene Quinones, 1,4‐Diketones and their Malononitrile Adducts
Bafög beantragen

Das könnte Sie auch interessieren

GDCh-Mitglieder exklusiv

Artikel • Nachrichten aus der Chemie

In Kürze

GÖCH

Termin vormerken: Generalversammlung am 21. September Die diesjährige Generalversammlung ist im Rahmen der Chemietage am...

30.04.2026
GDCh-Mitglieder exklusiv

Artikel • Nachrichten aus der Chemie

Ehrungen, Karriere

Service

Ehrungen Finnian Freeling, Dr.: Promotionspreis Wasserchemie der Wasserchemischen Gesellschaft, Fachgruppe der GDCh, für...

30.04.2026
GDCh-Mitglieder exklusiv

Artikel • Nachrichten aus der Chemie

Aus den Fachgruppen

GDCh

Bauchemie Neuer Vorstand Die GDCh-Fachgruppe Bauchemie hat ihren Vorstand für die Amtszeit 1. Januar 2026 bis 31. Dezemb...

30.04.2026