Bioinspired energy conversion

Rodrigo E. Palacios, Stephanie L. Gould, Christian Herrero, Michael Hambourger, Alicia Brune, Gerdenis Kodis, Paul A. Liddell, John Kennis, Alisdair N. Macpherson, John Devens Gust, Thomas A Moore, Ana L Moore

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Artificial photosynthetic antenna systems have been synthesized based on carotenoid polyenes and polymer-polyenes covalently attached to tetrapyrroles. Absorption of light in the blue/green region of the spectra excites the polyenes to their S2 state, and ultra-fast singlet energy transfer to the tetrapyrroles occurs when the chromophores are in partial conjugation. The additional participation of other excited states of the polyene in the energy-transfer process is a requirement for perfect antenna function. Analogs of photosynthetic reaction centers consisting of tetrapyrrole chromophores covalently linked to electron acceptors and donors have been prepared. Excitation of these constructs results in a cascade of energy transfer/electron transfer which, in selected cases, forms a final charge-separated state characterized by a giant dipole moment (>150 D), a quantum yield approaching unity, a significant fraction of the photon energy stored as chemical potential, and a lifetime sufficient for reaction with secondary electron donors and acceptors. A new antenna-reaction center complex is described in which a carotenoid moiety is located in partial conjugation with the tetrapyrrole π-system allowing fast energy transfer (

Original languageEnglish
Pages (from-to)1001-1008
Number of pages8
JournalPure and Applied Chemistry
Volume77
Issue number6
DOIs
Publication statusPublished - Jun 2005

Fingerprint

Tetrapyrroles
Polyenes
Energy conversion
Energy transfer
Carotenoids
Chromophores
Antennas
Electrons
Photosynthetic Reaction Center Complex Proteins
Chemical potential
Dipole moment
Quantum yield
Excited states
Polymers
Photons

Keywords

  • Antenna systems
  • Bioinspired
  • Carotenoid polyenes
  • Energy conversion
  • Photosynthesis

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Palacios, R. E., Gould, S. L., Herrero, C., Hambourger, M., Brune, A., Kodis, G., ... Moore, A. L. (2005). Bioinspired energy conversion. Pure and Applied Chemistry, 77(6), 1001-1008. https://doi.org/10.1351/pac200577061001

Bioinspired energy conversion. / Palacios, Rodrigo E.; Gould, Stephanie L.; Herrero, Christian; Hambourger, Michael; Brune, Alicia; Kodis, Gerdenis; Liddell, Paul A.; Kennis, John; Macpherson, Alisdair N.; Gust, John Devens; Moore, Thomas A; Moore, Ana L.

In: Pure and Applied Chemistry, Vol. 77, No. 6, 06.2005, p. 1001-1008.

Research output: Contribution to journalArticle

Palacios, RE, Gould, SL, Herrero, C, Hambourger, M, Brune, A, Kodis, G, Liddell, PA, Kennis, J, Macpherson, AN, Gust, JD, Moore, TA & Moore, AL 2005, 'Bioinspired energy conversion', Pure and Applied Chemistry, vol. 77, no. 6, pp. 1001-1008. https://doi.org/10.1351/pac200577061001
Palacios RE, Gould SL, Herrero C, Hambourger M, Brune A, Kodis G et al. Bioinspired energy conversion. Pure and Applied Chemistry. 2005 Jun;77(6):1001-1008. https://doi.org/10.1351/pac200577061001
Palacios, Rodrigo E. ; Gould, Stephanie L. ; Herrero, Christian ; Hambourger, Michael ; Brune, Alicia ; Kodis, Gerdenis ; Liddell, Paul A. ; Kennis, John ; Macpherson, Alisdair N. ; Gust, John Devens ; Moore, Thomas A ; Moore, Ana L. / Bioinspired energy conversion. In: Pure and Applied Chemistry. 2005 ; Vol. 77, No. 6. pp. 1001-1008.
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