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Towards a vibrational analysis of spheroidene : Resonance Raman spectroscopy of ¹³C-labelled spheroidenes in petroleum ether and in the Rhodobacter sphaeroides reaction centre

Title data

Kok, Peter ; Köhler, Jürgen ; Groenen, Edgar J. J. ; Gebhard, Ronald ; van der Hoef, Ineke ; Lugtenburg, Johan ; Hoff, Arnold J. ; Farhoosh, Roya ; Frank, Harry A.:
Towards a vibrational analysis of spheroidene : Resonance Raman spectroscopy of ¹³C-labelled spheroidenes in petroleum ether and in the Rhodobacter sphaeroides reaction centre.
In: Biochimica et Biophysica Acta : Bioenergetics. Vol. 1185 (1994) Issue 2 . - pp. 188-192.
ISSN 1879-2650
DOI: https://doi.org/10.1016/0005-2728(94)90209-7

Abstract in another language

We report resonance Raman spectra of the carotenoid spheroidene and its 14'-13C and 15'-13C substituted analogues in petroleum ether and bound to the reaction centre of Rhodobacter sphaeroides R26. The spectra in petroleum ether correspond to planar all-trans spheroidene while those of the reaction centres are consistent with a nonplanar 15,15'-cis spheroidene. The effect of 13C labelling is largest in the carbon-carbon double-bond stretching region. The 15'-13C substitution of the reaction centre bound spheroidene, however, hardly changes the C=C band as compared to that for the natural abundance spheroidene apart from a new weak band at 1508 cm-1. This observation has been interpreted as a decoupling of the C15=C15' stretch from the other double-bond stretches in combination with a small intrinsic Raman intensity of this local mode for 15,15'-cis spheroidene.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: spheroides
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie - Univ.-Prof. Dr. Jürgen Köhler
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik IX - Spektroskopie weicher Materie
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 10 Apr 2018 13:47
Last Modified: 16 Apr 2018 09:40
URI: https://eref.uni-bayreuth.de/id/eprint/43355