Photochemical hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone as studied by nuclear-spin-polarization-detected ESR spectroscopy

T. Azumi; K. Maeda; T. Aizawa; Y. Yamakage; K. Shindo; S. S. Ali; Y. Araki

doi:10.1007/BF02869975

Photochemical hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone as studied by nuclear-spin-polarization-detected ESR spectroscopy

T. Azumi, K. Maeda, T. Aizawa, Y. Yamakage, K. Shindo, S. S. Ali, Y. Araki

IMRAM - Division of Organic- and Biomaterials Research

Tohoku University

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The nuclear-spin-polarization-detected ESR spectrum is observed for intermediate radicals generated during the hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone. SNP spectra for the radical pair and the DNP spectrum for the free radical were observed separately. Experimental spectra are analyzed with the aid of theoretically obtained SNP and DNP spectra, and the chemical species responsible for the radical pair and the free radical were determined. The time sequence of both the radical pair and free radicals were obtained. The radical pair exists in solution for about 400 ns.

Original language	English
Pages (from-to)	831-840
Number of pages	10
Journal	Proceedings of the Indian Academy of Sciences: Chemical Sciences
Volume	107
Issue number	6
DOIs	https://doi.org/10.1007/BF02869975
Publication status	Published - 1995 Dec

Keywords

2,6-dichloro-p-benzoquinone
CIDNP
DNP
ESR
Nuclear spin polarization
SNP

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10.1007/BF02869975

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title = "Photochemical hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone as studied by nuclear-spin-polarization-detected ESR spectroscopy",

abstract = "The nuclear-spin-polarization-detected ESR spectrum is observed for intermediate radicals generated during the hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone. SNP spectra for the radical pair and the DNP spectrum for the free radical were observed separately. Experimental spectra are analyzed with the aid of theoretically obtained SNP and DNP spectra, and the chemical species responsible for the radical pair and the free radical were determined. The time sequence of both the radical pair and free radicals were obtained. The radical pair exists in solution for about 400 ns.",

keywords = "2,6-dichloro-p-benzoquinone, CIDNP, DNP, ESR, Nuclear spin polarization, SNP",

author = "T. Azumi and K. Maeda and T. Aizawa and Y. Yamakage and K. Shindo and Ali, {S. S.} and Y. Araki",

year = "1995",

month = dec,

doi = "10.1007/BF02869975",

language = "English",

volume = "107",

pages = "831--840",

journal = "Proceedings of the Indian Academy of Sciences: Chemical Sciences",

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T1 - Photochemical hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone as studied by nuclear-spin-polarization-detected ESR spectroscopy

AU - Azumi, T.

AU - Maeda, K.

AU - Aizawa, T.

AU - Yamakage, Y.

AU - Shindo, K.

AU - Ali, S. S.

AU - Araki, Y.

PY - 1995/12

Y1 - 1995/12

N2 - The nuclear-spin-polarization-detected ESR spectrum is observed for intermediate radicals generated during the hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone. SNP spectra for the radical pair and the DNP spectrum for the free radical were observed separately. Experimental spectra are analyzed with the aid of theoretically obtained SNP and DNP spectra, and the chemical species responsible for the radical pair and the free radical were determined. The time sequence of both the radical pair and free radicals were obtained. The radical pair exists in solution for about 400 ns.

AB - The nuclear-spin-polarization-detected ESR spectrum is observed for intermediate radicals generated during the hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone. SNP spectra for the radical pair and the DNP spectrum for the free radical were observed separately. Experimental spectra are analyzed with the aid of theoretically obtained SNP and DNP spectra, and the chemical species responsible for the radical pair and the free radical were determined. The time sequence of both the radical pair and free radicals were obtained. The radical pair exists in solution for about 400 ns.

KW - 2,6-dichloro-p-benzoquinone

KW - CIDNP

KW - DNP

KW - ESR

KW - Nuclear spin polarization

KW - SNP

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JO - Proceedings of the Indian Academy of Sciences: Chemical Sciences

JF - Proceedings of the Indian Academy of Sciences: Chemical Sciences

IS - 6

ER -

Photochemical hydrogen abstraction reaction of 2,6-dichloro-p-benzoquinone as studied by nuclear-spin-polarization-detected ESR spectroscopy

Abstract

Keywords

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