Ebook: Photoprocesses in Transition Metal Complexes, Biosystems and Other Molecules. Experiment and Theory

The scope of this paper is to recall fundamental notions of the molecular spectroscopy and dynamics, necessary for discussion of photophysical and photochemical processes in condensed phases. We will thus treat in a more detailed way the specific features which are important for molecular systems strongly interacting with their environment. Other aspects such as the time evolution of isolated molecules, single-level excitation and state-to-state chemistry, important for the gas-phase photophysics are omitted. We start (Sec.2) with a brief description of radiative processes (light absorption and emission) in molecules. In the quantum-mechanical treatment of this problem, the appropriate basis is that of so-called zero-order states, corresponding to the traditional scheme of electronic states (singlets, doublets, triplets etc.) and vibrational levels belonging to each state. The important point will be deduction of selection rules for most radiative transitions. At this stage all molecular states are considered as stationary states. In order to treat the breakdown of simple selection rules and non-radiative transitions between individual molecular states, it is necessary to take into account the mechanisms coupling the zero-order states (Sec.3). We will first focus on intramolecular coupling effects and then discuss the solvent effects on intramolecular relaxation processes. The problem of the non-radiative transfer of the electronic energy between different molecules - closely related to that of the energy dissipation within a single molecule will be treated in Sec.4.

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Content:
Front Matter....Pages i-x
Elementary Notions of Photophysics....Pages 1-47
Theory of Electron Transfer Reactions and Comparison with Experiments....Pages 49-88
Calculation of the Lifetime of Molecules in Electronically Excited States....Pages 89-101
Relativistic Effects in Molecular Calculations....Pages 103-111
Spectroscopic Techniques for Organometallic Intermediates....Pages 113-123
Photochemistry Involving Cr(CO)5 - Still Some Puzzles....Pages 125-140
Photochemistry of Organo-metal Carbonyls: Stereochemical and Catalytic Aspects....Pages 141-171
Photochemistry of Organometallics : Quantum Chemical Approach....Pages 173-216
Photochemistry of Metal-Metal Bonded Carbonyls and its Relationship to Electron Transfer Chain Catalysis....Pages 217-232
Supramolecular Photochemistry: Antenna Effect in Polynuclear Metal Complexes....Pages 233-252
Photophysics of Polynuclear Complexes. Intercomponent Energy and Electron Transfer Processes....Pages 253-269
Rigid Alkane-Bridged Donor-Acceptor Systems as Tools for the Investigation of Solvent-, Distance-, and Conformation-Effects in Electron Transfer Processes....Pages 271-298
Spectroscopy of Biliproteins and Energy Transfer in Photosynthetic Antenna Complexes....Pages 299-331
Photosynthesis: Biological Conversion of Light into Chemical Energy....Pages 333-347
Testing Primary Charge Separation in Photosynthetic Reaction Centers with External Electric Fields....Pages 349-373
Examining Long-Distance Biological Electron Transfer with Synthetic Model Systems....Pages 375-401
A Miscellany of AB Initio Quantum Chemistry the Helium Atom Studied by Various Methods....Pages 403-419
Back Matter....Pages 421-449

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Content:
Front Matter....Pages i-x
Elementary Notions of Photophysics....Pages 1-47
Theory of Electron Transfer Reactions and Comparison with Experiments....Pages 49-88
Calculation of the Lifetime of Molecules in Electronically Excited States....Pages 89-101
Relativistic Effects in Molecular Calculations....Pages 103-111
Spectroscopic Techniques for Organometallic Intermediates....Pages 113-123
Photochemistry Involving Cr(CO)5 - Still Some Puzzles....Pages 125-140
Photochemistry of Organo-metal Carbonyls: Stereochemical and Catalytic Aspects....Pages 141-171
Photochemistry of Organometallics : Quantum Chemical Approach....Pages 173-216
Photochemistry of Metal-Metal Bonded Carbonyls and its Relationship to Electron Transfer Chain Catalysis....Pages 217-232
Supramolecular Photochemistry: Antenna Effect in Polynuclear Metal Complexes....Pages 233-252
Photophysics of Polynuclear Complexes. Intercomponent Energy and Electron Transfer Processes....Pages 253-269
Rigid Alkane-Bridged Donor-Acceptor Systems as Tools for the Investigation of Solvent-, Distance-, and Conformation-Effects in Electron Transfer Processes....Pages 271-298
Spectroscopy of Biliproteins and Energy Transfer in Photosynthetic Antenna Complexes....Pages 299-331
Photosynthesis: Biological Conversion of Light into Chemical Energy....Pages 333-347
Testing Primary Charge Separation in Photosynthetic Reaction Centers with External Electric Fields....Pages 349-373
Examining Long-Distance Biological Electron Transfer with Synthetic Model Systems....Pages 375-401
A Miscellany of AB Initio Quantum Chemistry the Helium Atom Studied by Various Methods....Pages 403-419
Back Matter....Pages 421-449
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