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MO: Fachverband Molekülphysik
MO 11: Poster – Chirality
MO 11.1: Poster
Dienstag, 3. März 2026, 17:00–19:00, Philo 1. OG
Towards CD-Spectroscopy of Single Chlorosomes — •Stefan Goppelt1, Lisa Günther1, Thomas Jansen2, Jasper Knoester3, and Jürgen Köhler1 — 1Spectroscopy of soft Matter, University of Bayreuth, Germany — 2University of Groningen, The Netherlands — 3University of Leiden, The Netherlands
As one of the most efficient light-harvesting systems in nature chlorosomes (the light-harvesting aggregates of green-(non)-sulfur bacteria) are considered as a template for novel solar cells [1]. Among other techniques linear-polarization resolved fluorescence-excitation spectroscopy revealed molecular aggregates of cylindrical symmetry as the dominating secondary structural elements within the chlorosomes [2]. Development of circular-dichroism spectroscopy will allow to elucidate further structural details such as the diameter and the length of the cylindrical structures.
[1] S. Sengupta et al, Angew. Chem. Int. Ed., 51: 6378-6382 (2012) [2] L. Günther et al, J. Phys. Chem. B, 122, 26, 6712*6723 (2018)
Keywords: CD; Chlorosme; circular dichroism; light-harvesting aggregate; molecular aggregates