عنوان

Photosynthetic excitons

(Number (ISBN

9789810232801

(Number (ISBN

9789812813664

(Number (ISBN

9810232802

(Number (ISBN

9812813667

Number

b597199

Title Proper

Photosynthetic excitons

General Material Designation

[Book]

First Statement of Responsibility

Herbert van Amerongen, Leonas Valkunas, Rienk van Grondelle

Place of Publication, Distribution, etc.

Singapore River Edge

Name of Publisher, Distributor, etc.

N.J World Scientific Pub. Co ©

Date of Publication, Distribution, etc.

2000

Specific Material Designation and Extent of Item

(xiv, 590 p) ill. (some col.)

Text of Note

Includes bibliographical references and index

Text of Note

Ch. 1. Introduction: structural organization, spectral properties and excitation energy transfer in photosynthesis. 1. Introduction. 2. The photosynthetic pigments: chlorophylls, bacteriochlorophylls and carotenoids. 3. The structure and function of important photosynthetic pigment-protein complexes. 4. Mechanism of energy transfer and trapping in photosynthesis. 5. Energy transfer in some photosynthetic systems. 6. Conclusions -- ch. 2. The exciton concept. 1. Historical overview. 2. Interactions between molecules. 3. The excitonically coupled dimmer. 4. Excitonic interactions in larger systems. 5. Molecular crystals. 6. Molecular and lattice vibrations and loss of exciton coherence -- ch. 3. Some optical properties of the excitonically coupled dimer. 1. Introduction. 2. Linear dichroism. 3. Circular dichroism. 4. Fluorescence. 5. Fluorescence anisotropy. 6. Transient absorption (pump-probe). 7. Triplet-minus-singlet spectroscopy. 8. Stark spectroscopy. 9. A hypothetical dimmer. 10. B820: an excitonically coupled dimer from photosynthetic purple bacteria. 11. Spectroscopic properties of B820 -- ch. 4. Mixing with higher excited states. 1. Introduction. 2. Absorption. 3. Circular dichroism. 4. Circular dichroism of B820 -- ch. 5. Spectral shapes: homogeneous and inhomogeneous broadening. 1. Introduction. 2. The coupling of vibrations and phonons to electronic transitions. 3. Homogeneous and inhomogeneous broadening. 4. Exciton coupling and spectral broadening. 5. Spectral moments. 6. Hole burning. 7. Fluorescence line narrowing. 8. Separation of the broadening contributions for the FMO complex -- ch. 6. Spectroscopy of excitons in molecular crystals and aggregates. 1. Introduction. 2. Molecular crystals. 3. Cyclic molecular aggregates. 4. Linear molecular aggregates (J-aggregates). 5. Effect of disorder on the exciton spectrum. 6. Exciton-phonon interaction and exciton self-trapping. 7. Optical transitions. 8. Exciton migrationCh. 7. Excitonic interactions in photosynthetic systems: spectroscopic evidence. 1. Introduction. 2. Correlation of structural and spectroscopic properties of photosynthetic reaction centers. 3. Excitonic interactions in light-harvesting pigment-proteins. 4. The major Chl a-Chl b light-harvesting complex of green plants (or LHCII) -- ch. 8. Exciton dynamics. 1. Introduction. 2. Coherent vs. incoherent excitons. 3. Stochastic Liouville equation. 4. Depolarization for a dimer as described by the stochastic Liouville equation. 5. Migration of localized excitations: the Forster equation. 6. Generalized master equation. 7. Exciton relaxation -- ch. 9. Exciton dynamics in different antenna complexes. Coherence and incoherence. 1. Introduction. 2. C-Phycocyanin. 3. Allophycocyanin. 4. Peridinin-chlorophyll-a-protein from dinoflagellates. 5. The FMO complex from green bacteria. 6. Light-harvesting complex II from green plants. 7. Dynamics of energy transfer in LH1 and LH2 of photosynthetic purple bacteria -- ch. 10. Migration of localized excitons: Forster excitation energy transfer and trapping by reaction centers. 1. Introduction. 2. Excitation trapping by reaction centers. 3. Application to bacterial photosynthesis. 4. Application to plant systems. 5. Concluding remarks -- ch. 11. Excitation energy transfer and trapping. Experiments. 1. Introduction. 2. The bacterial PSU - energy transfer over the antenna network and trapping by the reaction center. 3. Photosystem II. 4. Energy transfer dynamics and trapping in intact PSII. 5. Energy transfer and trapping in the core antenna of photosystem I. 6. Concluding remarks -- ch. 12. Nonlinear annihilation of excitons. Theory. 1. Introduction. 2. Annihilation in large aggregates. 3. Small aggregates. 4. Singlet-triplet annihilation. 5. Local heating during annihilation. 6. Excitation annihilation studied by pump-probe spectroscopy -- ch. 13. Nonlinear annihilation of excitons. Experimental. 1. Introduction. 2. Fluorescence quantum yield measurements. 3. Annihilation kinetics in chromatophores. 4. Fenna-Matthews-Olson complex. 5. Annihilation kinetics in LHCII complex. 6. The effect of S-T annihilation on fluorescence induction in PSII -- ch. 14. Nonlinear spectroscopy. 1. Introduction. 2. Response functions in multilevel systems. 3. Experiments on energy transfer and electron transfer in photosynthesis applying nonlinear femtosecond spectroscopyExcitons are considered as the basic concept used by describing the spectral properties of photosynthetic pigment-protein complexes and excitation dynamics in photosynthetic light-harvesting antenna and reaction centers. Following the recently obtained structures of a variety of photosynthetic pigment-protein complexes from plants and bacteria our interest in understanding the relation between structure, function and spectroscopy has strongly increased. These data demonstrate a short interpigment distance (of the order of 1 nm or even smaller) and/or a highly symmetric (ring-like) arrangement of pigment molecules in peripheral light-harvesting complexes of photosynthetic bacteria. Books which were devoted to the exciton problem so far mainly considered the spectral properties of molecular crystals. However, the small size of these pigment aggregates in the pigment-protein complexes as well as the role of the protein, which is responsible for the structural arrangement of the complex, clearly will have a dramatic influence on the pigment spectra and exciton dynamics. All these aspects of the problem are considered in this book. Exciton theory is mainly considered for small molecular aggregates (dimers, ring-like structures etc.). Together with the theoretical description of the classical conceptual approach, which mainly deals with polarization properties of the absorption and fluorescence spectra, the nonlinear femtosecond spectroscopy which is widely used for investigations now is also discussed. A large part of the book demonstrates the excitonic effects in a multitude of photosynthetic pigment-protein complexes and how we can understand these properties on the basis of the exciton concept

Electronic excitation.

Molecular spectroscopy.

Photosynthesis.

Class number

Book number

Herbert van Amerongen, Leonas Valkunas, Rienk van Grondelle

Herbert van Amerongen

Leonas Valkunas

Rienk van Grondelle

World Scientific (Firm)

Electronic name

[Book]

Y