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Ultrafast Energy Transfer from Chlorophyll c(2) to Chlorophyll a in Fucoxanthin-Chlorophyll Protein Complex

Songaila, Egidijus ; Augulis, Ramunas ; Gelzinis, Andrius ; Butkus, Vytautas ; Gall, Andrew ; Buechel, Claudia ; Robert, Bruno ; Zigmantas, Donatas LU ; Abramavicius, Darius and Valkunas, Leonas (2013) In The Journal of Physical Chemistry Letters 4(21). p.3590-3595
Abstract
Light-harvesting in fucoxanthin-chlorophyll protein (FCP) of diatoms is performed by a cluster of chromophores: chlorophylls a (Chl a), chlorophylls c(2) (Chl c(2)), and carotenoids fucoxanthins. It is well-known that energy captured by fucoxanthin is transferred to Chl a on a subpicosecond time scale. However, the energy flow channel connecting Chl c(2) and Chl a remained elusive. In this study, the energy transfer between Chl c(2) and Chl a molecules in the FCP complex from the diatom algae C. meneghiniana at room temperature is investigated using pump probe and coherent two-dimensional electronic spectroscopy. Measured dynamics of the absorption band associated with the Q(y) transition of the Chl c(2) reveals an ultrafast energy... (More)
Light-harvesting in fucoxanthin-chlorophyll protein (FCP) of diatoms is performed by a cluster of chromophores: chlorophylls a (Chl a), chlorophylls c(2) (Chl c(2)), and carotenoids fucoxanthins. It is well-known that energy captured by fucoxanthin is transferred to Chl a on a subpicosecond time scale. However, the energy flow channel connecting Chl c(2) and Chl a remained elusive. In this study, the energy transfer between Chl c(2) and Chl a molecules in the FCP complex from the diatom algae C. meneghiniana at room temperature is investigated using pump probe and coherent two-dimensional electronic spectroscopy. Measured dynamics of the absorption band associated with the Q(y) transition of the Chl c(2) reveals an ultrafast energy transfer pathway to CM a. This conclusion is supported by the theoretical simulations based on the effective oscillator model. (Less)
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organization
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type
Contribution to journal
publication status
published
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in
The Journal of Physical Chemistry Letters
volume
4
issue
21
pages
3590 - 3595
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000326845200030
  • scopus:84887697292
ISSN
1948-7185
DOI
10.1021/jz401919k
language
English
LU publication?
yes
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The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
fdedf1a1-47e3-42a8-aee6-18caa936b62e (old id 4197989)
date added to LUP
2016-04-01 12:53:18
date last changed
2019-11-20 02:22:21
@article{fdedf1a1-47e3-42a8-aee6-18caa936b62e,
  abstract     = {Light-harvesting in fucoxanthin-chlorophyll protein (FCP) of diatoms is performed by a cluster of chromophores: chlorophylls a (Chl a), chlorophylls c(2) (Chl c(2)), and carotenoids fucoxanthins. It is well-known that energy captured by fucoxanthin is transferred to Chl a on a subpicosecond time scale. However, the energy flow channel connecting Chl c(2) and Chl a remained elusive. In this study, the energy transfer between Chl c(2) and Chl a molecules in the FCP complex from the diatom algae C. meneghiniana at room temperature is investigated using pump probe and coherent two-dimensional electronic spectroscopy. Measured dynamics of the absorption band associated with the Q(y) transition of the Chl c(2) reveals an ultrafast energy transfer pathway to CM a. This conclusion is supported by the theoretical simulations based on the effective oscillator model.},
  author       = {Songaila, Egidijus and Augulis, Ramunas and Gelzinis, Andrius and Butkus, Vytautas and Gall, Andrew and Buechel, Claudia and Robert, Bruno and Zigmantas, Donatas and Abramavicius, Darius and Valkunas, Leonas},
  issn         = {1948-7185},
  language     = {eng},
  number       = {21},
  pages        = {3590--3595},
  publisher    = {The American Chemical Society (ACS)},
  series       = {The Journal of Physical Chemistry Letters},
  title        = {Ultrafast Energy Transfer from Chlorophyll c(2) to Chlorophyll a in Fucoxanthin-Chlorophyll Protein Complex},
  url          = {http://dx.doi.org/10.1021/jz401919k},
  doi          = {10.1021/jz401919k},
  volume       = {4},
  year         = {2013},
}