An cleclron spin echo envelope modulahon lrequency analysis is performed ol the 14N and 15N bacleriochlorophyll a\* canon in sohd solution Hyperfine couphngs of 2 0 and 3.1 MHz arc derived which correspond to the perpendicular component ol Lhe axial hyperfine coupling tensor. Seven quadrupole lreque
The hyperfine interactions with 15N nuclei in bacteriochlorophyll a radical cations
โ Scribed by A.V. Astashkin; S.A. Dikanov; Yu.D. Tsvetkov
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 378 KB
- Volume
- 130
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The dead time of an ESE spectrometer has been shown to affect the position of the line maxima in ESEEM spectra. The hypertine interaction parameters for "N nuclei in BChl a+ radical cations have been improved with the aid of numerical calculations of the envelopes and spectra of ESE modulation.
๐ SIMILAR VOLUMES
Density functional methods are used to calculate the isotropic and anisotropic hyperfine interactions for the 3-methyl indole cation and neutral free radicals. Calculated couplings are compared with experimental determinations for in vivo tryptophan-based radicals. The cation and anion radicals can