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Nakatsuji S, Nobusawa M, Suzuki H, Akutsu H, Yamada JI. Spin-carrying benzoquinone derivatives. J Org Chem 2009; 74:9345-50. [PMID: 19928783 DOI: 10.1021/jo902007m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Several 1,4-benzoquinone derivatives carrying oxy-TEMPO radical(s) at the 2-position or 2,5-positions were found to give black crystals by recrystallization from pale yellow solutions and it was revealed from their crystal structures that unusual single-component CT complexes were formed, in which a nitroxide moiety plays the roll of a donor part and a 1,4-benzoquinone group of the same molecule works as an acceptor part, respectively. On the contrary, no CT formation was found for the derivatives carrying oxy-TEMPO radicals at 2,6-positions and one of the TEMPO groups contributes to a CT formation in a 1,4-benzoquinone derivative carrying amino-TEMPO radicals at 2,5-positions derived from fluoranil, while the other one has a close oxygen-to-oxygen contact with another neighboring molecule to give a very large exchange coupling of J/k(B) = -154 K.
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Affiliation(s)
- Shin'ichi Nakatsuji
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Hyogo 678-1297, Japan.
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Knight B, Martín N, Ohno T, Ortí E, Rovira C, Veciana J, Vidal-Gancedo J, Viruela P, Viruela R, Wudl F. Synthesis and Electrochemistry of Electronegative Spiroannelated Methanofullerenes: Theoretical Underpinning of the Electronic Effect of Addends and a Reductive Cyclopropane Ring-Opening Reaction. J Am Chem Soc 1997. [DOI: 10.1021/ja962299k] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brian Knight
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Nazario Martín
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Toshinobu Ohno
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Enrique Ortí
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Concepció Rovira
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Jaume Veciana
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - José Vidal-Gancedo
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Pedro Viruela
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Rafael Viruela
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
| | - Fred Wudl
- Contribution from the Institute for Polymers and Organic Solids, Departments of Physics and Chemistry, University of California, Santa Barbara, California 93106, Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain, Departamento de Química Física, Universidad de Valencia, E-46100 Burjassot (Valencia), Spain, and Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B., E-08193 Bellaterra, Spain
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