Carbazole-functionalized Chichibabin diradicaloids with redshifted absorption and enhanced photoluminescence

Vivek Chandrakant Wakchaure; Xingmao Chang; Julia Zolg; Rémi Blinder; Mona E. Arnold; Fedor Jelezko; Alexander J. C. Kuehne; Max von Delius

doi:10.1039/D5CC01805F

Carbazole-functionalized Chichibabin diradicaloids with redshifted absorption and enhanced photoluminescence†

Vivek Chandrakant Wakchaure,

^a Xingmao Chang,

^a Julia Zolg,^bd Rémi Blinder,

^c Mona E. Arnold,^b Fedor Jelezko,

*^cd Alexander J. C. Kuehne

*^bd and Max von Delius

*^ad

Author affiliations

* Corresponding authors

^a Institute of Organic Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
E-mail: max.vondelius@uni-ulm.de

^b Institute of Macromolecular and Organic Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
E-mail: alexander.kuehne@uni-ulm.de

^c Institute of Quantum Optics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
E-mail: fedor.jelezko@uni-ulm.de

^d Center for Integrated Quantum Science and Technology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany

Abstract

Organic radicals and diradicaloids that are both stable and luminescent are promising candidates for molecular qubits in quantum technologies. Here we report two new carbazole-functionalized Chichibabin diradicaloids that in comparison to the parent compound TTM-TTM exhibit a 50 nm bathochromic shift of absorption and a 2–3-fold increase in PLQY.

This article is part of the themed collection: Chemical Communications HOT articles 2025

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DOI: https://doi.org/10.1039/D5CC01805F
Article type: Communication
Submitted: 31 Mar 2025
Accepted: 13 May 2025
First published: 13 May 2025
This article is Open Access

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Chem. Commun., 2025, Advance Article

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Carbazole-functionalized Chichibabin diradicaloids with redshifted absorption and enhanced photoluminescence

V. C. Wakchaure, X. Chang, J. Zolg, R. Blinder, M. E. Arnold, F. Jelezko, A. J. C. Kuehne and M. von Delius, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC01805F

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Chemical Communications

Carbazole-functionalized Chichibabin diradicaloids with redshifted absorption and enhanced photoluminescence†

Abstract

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Carbazole-functionalized Chichibabin diradicaloids with redshifted absorption and enhanced photoluminescence

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