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Stass D, Bagryansky V, Molin Y. Simple rules for resolved level-crossing spectra in magnetic field effects on reaction yields. MAGNETIC RESONANCE (GOTTINGEN, GERMANY) 2021; 2:77-91. [PMID: 37904762 PMCID: PMC10539838 DOI: 10.5194/mr-2-77-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/11/2021] [Indexed: 11/01/2023]
Abstract
In this work we derive conditions under which a level-crossing line in a magnetic field effect curve for a recombining radical pair will be equivalent to the electron spin resonance (ESR) spectrum and discuss three simple rules for qualitative prediction of the level-crossing spectra.
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Affiliation(s)
- Dmitri V. Stass
- Voevodsky Institute of Chemical Kinetics and Combustion, Novosibirsk,
630090, Russia
- Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Victor A. Bagryansky
- Voevodsky Institute of Chemical Kinetics and Combustion, Novosibirsk,
630090, Russia
| | - Yuri N. Molin
- Voevodsky Institute of Chemical Kinetics and Combustion, Novosibirsk,
630090, Russia
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2
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Melnikov AR, Davydova MP, Sherin PS, Korolev VV, Stepanov AA, Kalneus EV, Benassi E, Vasilevsky SF, Stass DV. X-ray Generated Recombination Exciplexes of Substituted Diphenylacetylenes with Tertiary Amines: A Versatile Experimental Vehicle for Targeted Creation of Deep-Blue Electroluminescent Systems. J Phys Chem A 2018; 122:1235-1252. [PMID: 29283574 DOI: 10.1021/acs.jpca.7b11634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Customizable and technology-friendly functional materials are one of the mainstays of emerging organic electronics and optoelectronics. We show that recombination exciplexes of simple substituted diphenylacetylenes with tertiary amines can be a convenient source of tunable deep-blue emission with possible applications in organic electroluminescent systems. The optically inaccessible exciplexes were produced via recombination of radiation-generated radical ion pairs in alkane solution, which mimics charge transport and recombination in the active layer of practical organic light-emitting diodes in a simple solution-based experiment. Despite varying and rather poor intrinsic emission properties, diphenylacetylene and its prototypical methoxy (donor) or trifluoromethyl (acceptor) monosubstituted derivatives readily form recombination exciplexes with N,N-dimethylaniline and other tertiary amines that produce emission with maxima ranging from 385 to 435 nm. The position of emission band maximum linearly correlates with readily calculated gas-phase electron affinity of the corresponding diphenylacetylene, which can be used for fast computational prescreening of the candidate molecules, and various substituted diphenylacetylenes can be synthesized via relatively simple and universal cross-coupling reactions of Sonogashira and Castro. Together, the simple solution-based experiment, computationally cheap prescreening method, and universal synthetic strategy may open a very broad and chemically convenient class of compounds to obtain OLEDs and OLED-based multifunctional devices with tunable emission spectrum and high conversion efficiency that has yet not been seriously considered for these purposes.
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Affiliation(s)
- Anatoly R Melnikov
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation.,Novosibirsk State University , 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
| | - Maria P Davydova
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Peter S Sherin
- Novosibirsk State University , 2, Pirogova Str., 630090 Novosibirsk, Russian Federation.,International Tomography Center , 3a, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Valeri V Korolev
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Alexander A Stepanov
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Evgeny V Kalneus
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Enrico Benassi
- School of Science and Technology, Nazarbayev University , 53, Qabanbay Batyr Ave., 010000 Astana, Kazakhstan.,University of Oklahoma , 660 Parrington Oval, Norman, Oklahoma 73019, United States
| | - Sergei F Vasilevsky
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Dmitri V Stass
- Institute of Chemical Kinetics and Combustion SB RAS , 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation.,Novosibirsk State University , 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
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Ivanov KL, Wagenpfahl A, Deibel C, Matysik J. Spin-chemistry concepts for spintronics scientists. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:1427-1445. [PMID: 28900597 PMCID: PMC5530719 DOI: 10.3762/bjnano.8.143] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 06/13/2017] [Indexed: 05/03/2023]
Abstract
Spin chemistry and spintronics developed independently and with different terminology. Until now, the interaction between the two fields has been very limited. In this review, we compile the two "languages" in an effort to enhance communication. We expect that knowledge of spin chemistry will accelerate progress in spintronics.
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Affiliation(s)
- Konstantin L Ivanov
- International Tomography Center, Siberian Branch of Russian Academy of Science, Institutskaya 3а, Novosibirsk, 630090 Russia
- Novosibirsk State University, Institutskaya 3а, Novosibirsk, 630090 Russia
| | | | - Carsten Deibel
- Institut für Physik, Technische Universität Chemnitz, 09126 Chemnitz, Germany
| | - Jörg Matysik
- Universität Leipzig, Institut für Analytische Chemie, Linnéstr. 3, D-04103 Leipzig, Germany
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Melnikov AR, Verkhovlyuk VN, Kalneus EV, Korolev VV, Borovkov VI, Sherin PS, Davydova MP, Vasilevsky SF, Stass DV. Estimation of the Fraction of Spin-Correlated Radical Ion Pairs in Irradiated Alkanes using Magnetosensitive Recombination Luminescence from Exciplexes Generated upon Recombination of a Probe Pair. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/zpch-2016-0819] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
We suggest a convenient probe exciplex system for studies in radiation spin chemistry based on a novel acceptor-substituted diphenylacetylene, 1-(phenylethynyl)-4-(trifluoromethyl)benzene that has a very short fluorescence lifetime (<200 ps) and low quantum yield (0.01) of intrinsic emission, provides efficient electron capture in alkanes and efficient exciplex formation upon recombination in pair with DMA radical cation, while exhibiting a shifted to red exciplex emission band as compared to the parent system DMA – diphenylacetylene. After chemical, luminescent, radiation and spin-chemical characterization of the new system we used the magnitude of magnetic field effect in its exciplex emission band for experimental estimation of the fraction of spin-correlated radical ion pairs under X-irradiation with upper energy cutoff 40 keV in a set of 11 alkanes. For linear and branched alkanes magnetic field effects and the corresponding fractions are approximately 19–20% and 0.28, while for cyclic alkanes they are lower at 16–17% and 0.22, respectively.
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Affiliation(s)
- Anatoly R. Melnikov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
| | - Vladimir N. Verkhovlyuk
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Evgeny V. Kalneus
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Valeri V. Korolev
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Vsevolod I. Borovkov
- Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090, Russian Federation
| | - Peter S. Sherin
- Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
- International Tomography Center SB RAS, 3a, Institutskaya Str., 630090 Novosibirsk, Russian Federation
| | - Maria P. Davydova
- Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090, Russian Federation
| | - Sergei F. Vasilevsky
- Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090, Russian Federation
| | - Dmitri V. Stass
- Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3, Institutskaya Str., 630090, Russian Federation
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Melnikov AR, Kalneus EV, Korolev VV, Dranov IG, Kruppa AI, Stass DV. Highly efficient exciplex formation via radical ion pair recombination in X-irradiated alkane solutions for luminophores with short fluorescence lifetimes. Photochem Photobiol Sci 2014; 13:1169-79. [DOI: 10.1039/c3pp50432h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
X-irradiation of an alkane solution of N,N-dimethylaniline and diphenylacetylene (τf = 8 ps) produces an exciplex and yields a magnetic field effect of 20% in the exciplex emission band.
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Affiliation(s)
- Anatoly R. Melnikov
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk, Russian Federation
- Novosibirsk State University
- 630090 Novosibirsk, Russian Federation
| | - Evgeny V. Kalneus
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk, Russian Federation
| | - Valeri V. Korolev
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk, Russian Federation
| | - Igor G. Dranov
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk, Russian Federation
| | - Alexander I. Kruppa
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk, Russian Federation
| | - Dmitri V. Stass
- Institute of Chemical Kinetics and Combustion SB RAS
- 630090 Novosibirsk, Russian Federation
- Novosibirsk State University
- 630090 Novosibirsk, Russian Federation
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