Tetraazaacenes containing four-membered rings in different oxidation states: Are they aromatic? : a computational study
A symmetrical tetraazaacene incorporating a central cyclobutadiene ring was calculated in different oxidation (hydrogenation) states, displaying different tautomers and conformers. Geometries, thermodynamics, and electronic properties were computed, and the aromaticity of all these species was calcu...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
24 November 2014
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| In: |
The journal of organic chemistry
Year: 2014, Jahrgang: 79, Heft: 23, Pages: 11644-11650 |
| ISSN: | 1520-6904 |
| DOI: | 10.1021/jo502297w |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/jo502297w
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| Verfasserangaben: | Manuel Schaffroth, Renana Gershoni-Poranne, Amnon Stanger, and Uwe H.F. Bunz |
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| 520 | |a A symmetrical tetraazaacene incorporating a central cyclobutadiene ring was calculated in different oxidation (hydrogenation) states, displaying different tautomers and conformers. Geometries, thermodynamics, and electronic properties were computed, and the aromaticity of all these species was calculated on a per ring basis by NICS-scans and NICS-X-scans. The results unveil unexpected and fascinating insights into the complex aromaticity of those compounds, including a formally aromatic (!) cyclobutadiene ring. | ||
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