Excitonic and Vibrational Coherence in the Excitation Relaxation Process of Two LH1 Complexes as Revealed by Two-Dimensional Electronic Spectroscopy

Fei Ma; Long-Jiang Yu; Ruud Hendrikx; Zheng-Yu Wang-Otomo; Rienk van Grondelle

doi:10.1021/acs.jpclett.7b00824

Excitonic and Vibrational Coherence in the Excitation Relaxation Process of Two LH1 Complexes as Revealed by Two-Dimensional Electronic Spectroscopy

Fei Ma
, Long-Jiang Yu
, Ruud Hendrikx
, Zheng-Yu Wang-Otomo
, Rienk van Grondelle

Research output: Contribution to Journal › Article › Academic › peer-review

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Abstract

Ultrafast excitation relaxation within a manifold exciton state and longlived vibrational coherence are two universal characteristics of photosynthetic antenna complexes. In this work, we studied the two-dimensional electronic spectra of two core light-harvesting (LH1) complexes of Thermochromatium (Tch.) tepidum, native Ca2+-LH1 and modified Ba2+-LH1. The role of the vibrational coherence in the exciton relaxation was revealed by comparing the two LH1 with similar structures but different electronic properties and by the evolution of the exciton and vibrational coherence as a function of temperature.

Original language	English
Pages (from-to)	2751-2756
Number of pages	6
Journal	Journal of Physical Chemistry Letters
Volume	8
Issue number	12
Early online date	6 Jun 2017
DOIs	https://doi.org/10.1021/acs.jpclett.7b00824
Publication status	Published - 15 Jun 2017

Funding

F.M. and R.v.G. were supported by an Advanced Investigator grant from the European Research Council (No. 267333, PHOTPROT) to R.v.G and the TOP-grant (700.58.305) from the Foundation of Chemical Science part of NWO. R.v.G. gratefully acknowledges his Academy Professor grant from The Netherlands Royal Academy of Sciences (KNAW).

Funders	Funder number
Netherlands Royal Academy of Sciences
European Commission
Foundation of Chemical Science
Koninklijke Nederlandse Akademie van Wetenschappen
European Research Council	267333, 700.58.305
Japan Society for the Promotion of Science	16H04174
???publication-publication-funding-organisation-not-added???	700.58.305

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10.1021/acs.jpclett.7b00824

Excitonic and Vibrational Coherence in the Excitation Relaxation Process of Two LH1 Complexes as Revealed by Two-Dimensional Electronic SpectroscopyFinal published version, 1.68 MBLicence: Article 25fa Dutch Copyright Act

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abstract = "Ultrafast excitation relaxation within a manifold exciton state and longlived vibrational coherence are two universal characteristics of photosynthetic antenna complexes. In this work, we studied the two-dimensional electronic spectra of two core light-harvesting (LH1) complexes of Thermochromatium (Tch.) tepidum, native Ca2+-LH1 and modified Ba2+-LH1. The role of the vibrational coherence in the exciton relaxation was revealed by comparing the two LH1 with similar structures but different electronic properties and by the evolution of the exciton and vibrational coherence as a function of temperature.",

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AU - Wang-Otomo, Zheng-Yu

AU - van Grondelle, Rienk

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AB - Ultrafast excitation relaxation within a manifold exciton state and longlived vibrational coherence are two universal characteristics of photosynthetic antenna complexes. In this work, we studied the two-dimensional electronic spectra of two core light-harvesting (LH1) complexes of Thermochromatium (Tch.) tepidum, native Ca2+-LH1 and modified Ba2+-LH1. The role of the vibrational coherence in the exciton relaxation was revealed by comparing the two LH1 with similar structures but different electronic properties and by the evolution of the exciton and vibrational coherence as a function of temperature.

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ER -

Excitonic and Vibrational Coherence in the Excitation Relaxation Process of Two LH1 Complexes as Revealed by Two-Dimensional Electronic Spectroscopy

Abstract

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