Version 1
: Received: 22 April 2024 / Approved: 22 April 2024 / Online: 22 April 2024 (10:29:20 CEST)
How to cite:
Cador, A.; Kahlal, S.; Richards, G.J.; Halet, J.; Hill, J.P. Protic Processes in an Extended Pyrazinacene: The Case of Dihydrotetradecaazaheptacene. Preprints2024, 2024041383. https://doi.org/10.20944/preprints202404.1383.v1
Cador, A.; Kahlal, S.; Richards, G.J.; Halet, J.; Hill, J.P. Protic Processes in an Extended Pyrazinacene: The Case of Dihydrotetradecaazaheptacene. Preprints 2024, 2024041383. https://doi.org/10.20944/preprints202404.1383.v1
Cador, A.; Kahlal, S.; Richards, G.J.; Halet, J.; Hill, J.P. Protic Processes in an Extended Pyrazinacene: The Case of Dihydrotetradecaazaheptacene. Preprints2024, 2024041383. https://doi.org/10.20944/preprints202404.1383.v1
APA Style
Cador, A., Kahlal, S., Richards, G.J., Halet, J., & Hill, J.P. (2024). Protic Processes in an Extended Pyrazinacene: The Case of Dihydrotetradecaazaheptacene. Preprints. https://doi.org/10.20944/preprints202404.1383.v1
Chicago/Turabian Style
Cador, A., Jean-François Halet and Jonathan P. Hill. 2024 "Protic Processes in an Extended Pyrazinacene: The Case of Dihydrotetradecaazaheptacene" Preprints. https://doi.org/10.20944/preprints202404.1383.v1
Abstract
Pyrazinacenes are linearly fused heteroaromatic rings, with N atoms replacing all apical CH moieties. Component rings may exist in a reduced state having NH groups instead of N, causing cross-conjugation. These compounds have interesting optical and electronic properties, including strong fluorescence in the near infrared region and photocatalytic properties, leading to diverse possible applications in bio-imaging, organic synthesis as well as obvious molecular electronic uses. In this study, we have investigated the behaviour of seven-ring pyrazinacene 2,3,11,12-tetraphenyl-7,16-dihydro-1,4,5,6,7,8,9,12,13,14,15,16,17,18-tetradecaazaheptacene (Ph4H2N14HEPT) with emphasis on protic processes including oxidation, tautomerism, deprotonation and protonation, and the species resulting from those processes. We have used computational methods to optimize the structures of the different species and generate/compare molecular orbital structures. Aromaticity of species generated by the different processes has been assessed using the nucleus independent chemical shifts, and trends in the values have been associated with the different transformations of the pyrazinacene core. The computational data was compared with experimental data obtained from synthetic samples of the molecule tBu8Ph4H2N14HEPT.
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
