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3 mm EPR investigation of the primary donor cation radical in single crystals of Rhodobacter sphaeroides R-26 reaction centers

Burghaus, O. ; Plato, M. ; Bumann, D. ; Neumann, B. ; Lubitz, W. ; Möbius, K.

Chemical Physics Letters, 1991, Vol.185(3), pp.381-386 [Peer Reviewed Journal]

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  • Title:
    3 mm EPR investigation of the primary donor cation radical in single crystals of Rhodobacter sphaeroides R-26 reaction centers
  • Author: Burghaus, O. ; Plato, M. ; Bumann, D. ; Neumann, B. ; Lubitz, W. ; Möbius, K.
  • Description: The EPR g -factor rotation pattern of the primary donor cation radical in the x  y plane of illuminated reaction center single crystals of Rb. sphaeroides R-26 near room temperature was measured at 3 mm wavelength (W-band, 95 GHz). In contrast to earlier X-band (9.5 GHz) EPR experiments, the two magnetically inequivalent sites of the four reaction centers per unit cell were well resolved. in frozen reaction center solution was also measured by 3 mm EPR. The analysis of both the frozen-solution spectrum and the single-crystal rotation pattern yields the principal values of the g -tensor and the phase angle between the two magnetically inequivalent sites in the x  y plane.
  • Is Part Of: Chemical Physics Letters, 1991, Vol.185(3), pp.381-386
  • Identifier: ISSN: 0009-2614 ; DOI: 10.1016/S0009-2614(91)85079-C
  • Language: English
  • Source: ScienceDirect (Elsevier B.V.)

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