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 | |
| 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 |
|---|---|
| Foundation of Chemical Science | |
| Koninklijke Nederlandse Akademie van Wetenschappen | |
| European Research Council | 267333, 700.58.305 |
| Japan Society for the Promotion of Science | 16H04174 |
| Koninklijke Nederlandse Akademie van Wetenschappen | |
| Nederlandse Organisatie voor Wetenschappelijk Onderzoek |
