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Is There Elliptic Distortion in the Light Harvesting Complex 2 of Purple Bacteria?

Title data

Jang, Seogjoo ; Silbey, Robert J. ; Kunz, Ralf ; Hofmann, Clemens ; Köhler, Jürgen:
Is There Elliptic Distortion in the Light Harvesting Complex 2 of Purple Bacteria?
In: The Journal of Physical Chemistry B. Vol. 115 (2011) Issue 44 . - pp. 12947-12953.
ISSN 1520-5207
DOI: https://doi.org/10.1021/jp202344s

Abstract in another language

Single molecule spectroscopy (SMS) revealed an unusually large Gap between two major exciton peaks of the B850 unit of light harvesting complex 2 (LH2), which could be explained assuming elliptic distortion or k = 2 symmetry modulation in the site excitation energy. On the basis of extensive simulation of the SMS data and ensemble line shape, we found that uniform modulation of k = 2 symmetry cannot explain the dependence of intensity ratios on the Gap of the two major peaks, which are available from SMS, nor the ensemble line shape. Alternative models of disorder with k = 1 and k = 2 symmetry correlation are shown to reproduce these data reasonably well and can even explain the Gap distribution when it is assumed that the lower major peak in the SMS line shape is an intensity weighted average of k = 1 and k = 0 states.

Further data

Item Type: Article in a journal
Refereed: Yes
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: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 10 Apr 2018 11:19
Last Modified: 10 Apr 2018 11:19
URI: https://eref.uni-bayreuth.de/id/eprint/43319