Electronic States of 2,3-Diamino-1,4-naphthoquinone and Its N-Alkylated Derivatives
Abstract
Diaminoquinones with a captodatively stabilized biradicaloid structure are candidates for singlet fission, but few such compounds are known. We report the solution spectroscopy and photophysics of 1,2,2,3-tetramethyl-2,3-dihydro-1H-naphtho[2,3-d]imidazole-4,9-dione (1): its steady-state and transient UV–visible absorption, linear dichroism in stretched poly(vinyl alcohol), and magnetic circular dichroism. We also describe the absorption spectra of the stable radical ions 1•+ and 1•– and of two parent structures, 2,3-diamino-1,4-naphthoquinone (2) and 2,3-bis(methylamino)-1,4-naphthoquinone (3). The spectra are interpreted and electronic transitions are assigned by comparison with the results of density functional theory and MS-CASPT2 calculations.
- Authors:
-
- Inst. of Organic Chemistry and Biochemistry, Prague (Czech Republic)
- Univ. of Colorado, Boulder, CO (United States)
- Technische Univ. Berlin (Germany)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Inst. of Organic Chemistry and Biochemistry, Prague (Czech Republic); Univ. of Colorado, Boulder, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1595567
- Alternate Identifier(s):
- OSTI ID: 1688409
- Report Number(s):
- NREL/JA-5900-74492
Journal ID: ISSN 1932-7447
- Grant/Contract Number:
- AC36-08GO28308; SC0007004
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry. C
- Additional Journal Information:
- Journal Volume: 124; Journal Issue: 1; Journal ID: ISSN 1932-7447
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; diaminoquinones; biradicaloid
Citation Formats
Wen, Jin, Turowski, Michał, Dron, Paul I., Chalupský, Jakub, Grotjahn, Robin, Maier, Toni M., Fatur, Steven M., Havlas, Zdeněk, Johnson, Justin C., Kaupp, Martin, and Michl, Josef. Electronic States of 2,3-Diamino-1,4-naphthoquinone and Its N-Alkylated Derivatives. United States: N. p., 2019.
Web. doi:10.1021/acs.jpcc.9b08955.
Wen, Jin, Turowski, Michał, Dron, Paul I., Chalupský, Jakub, Grotjahn, Robin, Maier, Toni M., Fatur, Steven M., Havlas, Zdeněk, Johnson, Justin C., Kaupp, Martin, & Michl, Josef. Electronic States of 2,3-Diamino-1,4-naphthoquinone and Its N-Alkylated Derivatives. United States. doi:10.1021/acs.jpcc.9b08955.
Wen, Jin, Turowski, Michał, Dron, Paul I., Chalupský, Jakub, Grotjahn, Robin, Maier, Toni M., Fatur, Steven M., Havlas, Zdeněk, Johnson, Justin C., Kaupp, Martin, and Michl, Josef. Wed .
"Electronic States of 2,3-Diamino-1,4-naphthoquinone and Its N-Alkylated Derivatives". United States. doi:10.1021/acs.jpcc.9b08955. https://www.osti.gov/servlets/purl/1595567.
@article{osti_1595567,
title = {Electronic States of 2,3-Diamino-1,4-naphthoquinone and Its N-Alkylated Derivatives},
author = {Wen, Jin and Turowski, Michał and Dron, Paul I. and Chalupský, Jakub and Grotjahn, Robin and Maier, Toni M. and Fatur, Steven M. and Havlas, Zdeněk and Johnson, Justin C. and Kaupp, Martin and Michl, Josef},
abstractNote = {Diaminoquinones with a captodatively stabilized biradicaloid structure are candidates for singlet fission, but few such compounds are known. We report the solution spectroscopy and photophysics of 1,2,2,3-tetramethyl-2,3-dihydro-1H-naphtho[2,3-d]imidazole-4,9-dione (1): its steady-state and transient UV–visible absorption, linear dichroism in stretched poly(vinyl alcohol), and magnetic circular dichroism. We also describe the absorption spectra of the stable radical ions 1•+ and 1•– and of two parent structures, 2,3-diamino-1,4-naphthoquinone (2) and 2,3-bis(methylamino)-1,4-naphthoquinone (3). The spectra are interpreted and electronic transitions are assigned by comparison with the results of density functional theory and MS-CASPT2 calculations.},
doi = {10.1021/acs.jpcc.9b08955},
journal = {Journal of Physical Chemistry. C},
number = 1,
volume = 124,
place = {United States},
year = {2019},
month = {11}
}
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