From eiectrolyhcally generated bacteriopheophytin a anion radxal in solution, 10 proton and 4 nitrogen hyperfme couplmg constants, includmg signs, have been measured by ESR, ENDOR and TRIPLE resonance techniques. The expexmental results are compared to those from MO calculations and posnble assignme
25Mg ENDOR and TRIPLE resonance in liquid solution of the bacteriochlorophyll a cation and anion radicals
✍ Scribed by F. Lendzian; K. Möbius; M. Plato; U.H. Smith; M.C. Thurnauer; W. Lubitz
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 528 KB
- Volume
- 111
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Solution *sM-ENDOR and TRIPLE n~~~~+nce esperiments have been performed on the bacteriochlorophyll a (BChl a) zJ anion and cation radicals enriched in 25hIg. The 2shfg isotropic hyperfime coupling constants for BChl a* and BChl ar have been determined. The vaIues are in good agreement with those obtained from recent hI0 cakulations.
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From electrolytically generated bacteriochlorophyll a anion radicals in solution, eight proton and four nitrogen hfs constants includirlg signs were measured by ENDOR and TRIPLE resonance. Optimum experimental conditions for ENDOR of different nuclei were examined. The hfs data are compared with res
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