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

Egidijus Songaila; Ramunas Augulis; Andrius Gelzinis; Vytautas Butkus; Andrew Gall; Claudia Buechel; Bruno Robert; Donatas Zigmantas; Darius Abramavicius; Leonas Valkunas

doi:10.1021/jz401919k

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

Egidijus Songaila, Ramunas Augulis, Andrius Gelzinis, Vytautas Butkus, Andrew Gall, Claudia Buechel, Bruno Robert, Donatas Zigmantas, Darius Abramavicius, Leonas Valkunas

Chemical Physics

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	3590-3595
Journal	The Journal of Physical Chemistry Letters
Volume	4
Issue number	21
DOIs	https://doi.org/10.1021/jz401919k
Publication status	Published - 2013

Bibliographical note

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)

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

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10.1021/jz401919k

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

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 = "Egidijus Songaila and Ramunas Augulis and Andrius Gelzinis and Vytautas Butkus and Andrew Gall and Claudia Buechel and Bruno Robert and Donatas Zigmantas and Darius Abramavicius and Leonas Valkunas",

note = "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)",

year = "2013",

doi = "10.1021/jz401919k",

language = "English",

volume = "4",

pages = "3590--3595",

journal = "The Journal of Physical Chemistry Letters",

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TY - JOUR

T1 - Ultrafast Energy Transfer from Chlorophyll c(2) to Chlorophyll a in Fucoxanthin-Chlorophyll Protein Complex

AU - Songaila, Egidijus

AU - Augulis, Ramunas

AU - Gelzinis, Andrius

AU - Butkus, Vytautas

AU - Gall, Andrew

AU - Buechel, Claudia

AU - Robert, Bruno

AU - Zigmantas, Donatas

AU - Abramavicius, Darius

AU - Valkunas, Leonas

N1 - 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)

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

U2 - 10.1021/jz401919k

DO - 10.1021/jz401919k

M3 - Article

SN - 1948-7185

VL - 4

SP - 3590

EP - 3595

JO - The Journal of Physical Chemistry Letters

JF - The Journal of Physical Chemistry Letters

IS - 21

ER -

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

Abstract

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