skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Index

Orientation-Selected 95 GHz High-Field ENDOR Spectroscopy of Randomly Oriented Plastoquinone Anion Radicals

Rohrer, M. ; Plato, M. ; Macmillan, F. ; Grishin, Y. ; Lubitz, W. ; Mobius, K.

Journal of Magnetic Resonance, Series A, September 1995, Vol.116(1), pp.59-66 [Peer Reviewed Journal]

Full text available

Citations Cited by
  • Title:
    Orientation-Selected 95 GHz High-Field ENDOR Spectroscopy of Randomly Oriented Plastoquinone Anion Radicals
  • Author: Rohrer, M. ; Plato, M. ; Macmillan, F. ; Grishin, Y. ; Lubitz, W. ; Mobius, K.
  • Description: Recent improvements of a 3 mm high-field/high-frequency CW EPR/ENDOR spectrometer [O. Burghaus, M. Rohrer, T. Götzinger, M. Plate, and K. Möbius, Meas. Sci. Technol. 3 , 765 (1992)] are presented, making it possible for ENDOR measurements to be performed with NMR radiofrequeney fields of more than 2.5 mT (rotating frame) over a frequency range of 40 MHz. Applications of this setup to plastosemiquinone anion radicals are described which serve as a model for the secondary electron acceptor in plant photosystem II. The orientation-selected high-field ENDOR spectra of the plastoquinone anion radicals, recorded at different EPR field positions, are analyzed with the aid of computer simulations. The determination of hyperfine interactions of the radical in a perdeuterated solvent is described. The experiments demonstrate the potential of high-field/high-frequency EPR/ENDOR in structure determination including anisotropic interactions with the environment.
  • Is Part Of: Journal of Magnetic Resonance, Series A, September 1995, Vol.116(1), pp.59-66
  • Identifier: ISSN: 1064-1858 ; DOI: 10.1006/jmra.1995.1189
  • Language: English
  • Source: ScienceDirect (Elsevier B.V.)

Searching Remote Databases, Please Wait