Electron spin echo envelope modulation of trapped radicals in disordered systems: nitrogen modulation from isotopically substituted chlorophyll a cations

M. K. Bowman; J. R. Norris; M. C. Thurnauer; J. Warden; S. A. Dikanov; Yu D. Tsvetkov

doi:10.1016/0009-2614(78)84040-8

Electron spin echo envelope modulation of trapped radicals in disordered systems: nitrogen modulation from isotopically substituted chlorophyll a cations

M. K. Bowman, J. R. Norris, M. C. Thurnauer, J. Warden, S. A. Dikanov, Yu D. Tsvetkov

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

Abstract

The electron spin echo envelope modulation of the chlorophyll a radical cation has been examined for radicals containing ¹⁴N and ¹⁵N. The modulation is found to be due primarily to the nitrogen nuclei in the heterocycle and the nuclear quadrupole interaction plays a large part in determining the modulation from ¹⁴N. The modulation from ¹⁵N allows limits to be set on the isotropic and anisotropic hyperfine interactions.

Original language	English (US)
Pages (from-to)	570-574
Number of pages	5
Journal	Chemical Physics Letters
Volume	55
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(78)84040-8
State	Published - May 1 1978
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/0009-2614(78)84040-8

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Electron spin echo envelope modulation of trapped radicals in disordered systems : nitrogen modulation from isotopically substituted chlorophyll a cations. / Bowman, M. K.; Norris, J. R.; Thurnauer, M. C.; Warden, J.; Dikanov, S. A.; Tsvetkov, Yu D.

In: Chemical Physics Letters, Vol. 55, No. 3, 01.05.1978, p. 570-574.

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

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abstract = "The electron spin echo envelope modulation of the chlorophyll a radical cation has been examined for radicals containing 14N and 15N. The modulation is found to be due primarily to the nitrogen nuclei in the heterocycle and the nuclear quadrupole interaction plays a large part in determining the modulation from 14N. The modulation from 15N allows limits to be set on the isotropic and anisotropic hyperfine interactions.",

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AU - Dikanov, S. A.

AU - Tsvetkov, Yu D.

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