Photosynthetic excitons / Herbert van Amerongen, Leonas Valkunas, Rienk van Grondelle.

Format:

Book

Author/Creator:

Amerongen, Herbert van.

Contributor:

Valkūnas, Leonas.

Grondelle, Rienk van.

Language:

English

Subjects (All):

Exciton theory.

Photosynthesis.

Electronic excitation.

Energy transfer.

Molecular spectroscopy.

Physical Description:

1 online resource (606 p.)

Other Title:

Excitons

Place of Publication:

Singapore ; River Edge, NJ : World Scientific, c2000.

Language Note:

English

Summary:

Excitons 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

Contents:

Preface; Contents; CHAPTER 1 INTRODUCTION: STRUCTURAL ORGANIZATION, SPECTRAL PROPERTIES AND EXCITATION ENERGY TRANSFER IN PHOTOSYNTHESIS; 1. Introduction; 1.1 Disordered vs. ordered light-harvesting systems; 2. The photosynthetic pigments: chlorophylls, bacteriochlorophylls and carotenoids; 2.1 The chlorophylls; 2.2 The bacteriochlorophylls; 2.3 The carotenoids; 3. The structure and function of important photosynthetic pigment-protein complexes; 3.1 The bacterial photosynthetic reaction center; 3.2 The reaction centers of Photosystem II and Photosystem I

3.3 The peripheral light-harvesting complex (LH2) of photosynthetic purple bacteria3.4 The Fenna-Matthews-Olson protein of green sulphur bacteria; 3.5 LHCII, the major chlorophyll binding light-harvesting complex of plants; 3.6 The core antenna and reaction center of Photosystem I; 4. Mechanism of Energy Transfer and Trapping in Photosynthesis; 4.1 The Forster equation; 4.2 Trapping by the reaction center; 5. Energy transfer in some photosynthetic systems; 5.1 Energy transfer in the peripheral and core antennae of photosynthetic purple bacteria

5.2 Energy transfer in the Fenna-Matthews-Olson complex5.3 Energy transfer in the major peripheral plant light-harvesting complex LHCII; 5.4 Energy transfer in Photosystem I; 6. Conclusions; References; CHAPTER 2 THE EXCITON CONCEPT; 1. Historical overview; 2. Interactions between molecules; 3. The excitonically coupled dimer; 3.1 Non-equivalent site energies; 3.2 Transition dipole moment; 4. Excitonic interactions in larger systems; 5. Molecular crystals; 6. Molecular and lattice vibrations and loss of exciton coherence; References

CHAPTER 3 SOME OPTICAL PROPERTIES OF THE EXCITONICALLY COUPLED DIMER1. 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 dimer; 10. B820: an excitonically coupled dimer from photosynthetic purple bacteria; 11. Spectroscopic properties of B820; Appendix 3.1: Derivation of expressions for linear dichroism; Appendix 3.2: Derivation of expression for anisotropy; References; CHAPTER 4 MIXING WITH HIGHER EXCITED STATES

1. Introduction2. Absorption; 2.1 Ground-state absorption; 2.2 Excited-state absorption and transient absorption; 2.3 Non-degenerate dimer; 3. Circular dichroism; 4. Circular dichroism of B820; References; CHAPTER 5 SPECTRAL SHAPES: HOMOGENEOUS AND INHOMOGENEOUS BROADENING; 1. Introduction; 2. The coupling of vibrations and phonons to electronic transitions; 2.1 Adiabatic approach; 2.2 Transition dipole moment; 2.3 Absorption spectrum; 2.4 Electron-phonon coupling; 2.5 Brownian oscillator model; 3. Homogeneous and inhomogeneous broadening; 4. Exciton coupling and spectral broadening

5. Spectral moments

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

ISBN:

9789812813664

9812813667