Carotenoid to chlorophyll energy transfer in the peridinin-chlorophyll-a-protein complex involves an intramolecular charge transfer state
(2002) In Proceedings of the National Academy of Sciences 99(26). p.16760-16765- Abstract
- Carotenoids are, along with chlorophylls, crucial pigments involved in light-harvesting processes in photosynthetic organisms. Details of carotenoid to chlorophyll energy transfer mechanisms and their dependence on structural variability of carotenoids are as yet poorly understood. Here, we employ femtosecond transient absorption spectroscopy to reveal energy transfer pathways in the peridinin-chlorophyll-a-protein (PCP) complex containing the highly substituted carotenoid peridinin, which includes an intramolecular charge transfer (ICT) state in its excited state manifold. Extending the transient absorption spectra toward near-infrared region (600-1800 nm) allowed us to separate contributions from different low-lying excited states of... (More)
- Carotenoids are, along with chlorophylls, crucial pigments involved in light-harvesting processes in photosynthetic organisms. Details of carotenoid to chlorophyll energy transfer mechanisms and their dependence on structural variability of carotenoids are as yet poorly understood. Here, we employ femtosecond transient absorption spectroscopy to reveal energy transfer pathways in the peridinin-chlorophyll-a-protein (PCP) complex containing the highly substituted carotenoid peridinin, which includes an intramolecular charge transfer (ICT) state in its excited state manifold. Extending the transient absorption spectra toward near-infrared region (600-1800 nm) allowed us to separate contributions from different low-lying excited states of peridinin. The results demonstrate a special light-harvesting strategy in the PCP complex that uses the ICT state of peridinin to enhance energy transfer efficiency. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/320542
- author
- Zigmantas, Donatas LU ; Hiller, RG ; Sundström, Villy LU and Polivka, Tomas LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Proceedings of the National Academy of Sciences
- volume
- 99
- issue
- 26
- pages
- 16760 - 16765
- publisher
- National Academy of Sciences
- external identifiers
-
- wos:000180101600047
- scopus:0037168673
- ISSN
- 1091-6490
- DOI
- 10.1073/pnas.262537599
- language
- English
- LU publication?
- yes
- additional info
- 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
- ae0ea8f3-75b8-43f3-a355-e5bbc49bb516 (old id 320542)
- date added to LUP
- 2016-04-01 12:16:09
- date last changed
- 2022-01-27 01:17:28
@article{ae0ea8f3-75b8-43f3-a355-e5bbc49bb516, abstract = {{Carotenoids are, along with chlorophylls, crucial pigments involved in light-harvesting processes in photosynthetic organisms. Details of carotenoid to chlorophyll energy transfer mechanisms and their dependence on structural variability of carotenoids are as yet poorly understood. Here, we employ femtosecond transient absorption spectroscopy to reveal energy transfer pathways in the peridinin-chlorophyll-a-protein (PCP) complex containing the highly substituted carotenoid peridinin, which includes an intramolecular charge transfer (ICT) state in its excited state manifold. Extending the transient absorption spectra toward near-infrared region (600-1800 nm) allowed us to separate contributions from different low-lying excited states of peridinin. The results demonstrate a special light-harvesting strategy in the PCP complex that uses the ICT state of peridinin to enhance energy transfer efficiency.}}, author = {{Zigmantas, Donatas and Hiller, RG and Sundström, Villy and Polivka, Tomas}}, issn = {{1091-6490}}, language = {{eng}}, number = {{26}}, pages = {{16760--16765}}, publisher = {{National Academy of Sciences}}, series = {{Proceedings of the National Academy of Sciences}}, title = {{Carotenoid to chlorophyll energy transfer in the peridinin-chlorophyll-a-protein complex involves an intramolecular charge transfer state}}, url = {{http://dx.doi.org/10.1073/pnas.262537599}}, doi = {{10.1073/pnas.262537599}}, volume = {{99}}, year = {{2002}}, }