TY - JOUR
T1 - Excitonic and Vibrational Coherence in the Excitation Relaxation Process of Two LH1 Complexes as Revealed by Two-Dimensional Electronic Spectroscopy
AU - Ma, Fei
AU - Yu, Long-Jiang
AU - Hendrikx, Ruud
AU - Wang-Otomo, Zheng-Yu
AU - van Grondelle, Rienk
PY - 2017/6/15
Y1 - 2017/6/15
N2 - 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.
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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U2 - 10.1021/acs.jpclett.7b00824
DO - 10.1021/acs.jpclett.7b00824
M3 - Article
SN - 1948-7185
VL - 8
SP - 2751
EP - 2756
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 12
ER -
