1: Crystallographic and Electronic Structure.- Crystallization and Structure of the Photosynthetic Reaction Centres from Rhodobacter sphaeroides — Wild Type and Mutants.- The Crystal Structure of Allophycocyanin and its Comparison to C-Phycocyanin and b-Phycoerythrin.- New Insights into the X-Ray Structure of the Reaction Center form Rhodopseudomonas viridis.- Effect of Orbital Asymmetry in P·+ on Electron Transfer in Reaction Centers of Rb. sphaeroides.- ENDOR on the Primary Electron Donor Cation Radical of Heterodimer-Double-Mutants of Rb. sphaeroides. Effect of Hydrogen Bonding on the Electronic Structure of Bacteriochlorophyll ?-type Radicals.- Structure Information on the Bacterial Primary Donor P+·, Acceptor $$ Q_A^{{ - \cdot }} $$, and Radical Pair P+·-$$ Q_A^{{ - \cdot }} $$ as Obtained form High-Field EPR/ENDOR and MO Studies.- Molecular Triads that Mimic the Spin-Polarized Triplet State in Photosynthetic Reaction Centers.- Quantum Calculations for the Special Pair Dimer and for Heterodimers: Analysis of the Charge Transfer States.- Macroscopic and Microscopic Estimates of the Energetics of Charge Separation in Bacterial Reaction Centers.- Electron Transfer in Proteins: Beyond the Single Pathway Approach.- The Role of the Protein in the Stabilization of the Charge Separated States in Photosynthetic Reaction Centers.- Shifts of the Special Pair Redox Potential of Mutants of Rhodobactersphaeroides Calculated with DelPhi and CHARMM Energy Functions.- 2: Dynamics of Primary Events and the Role of Protein.- The First Femtoseconds of Primary Photosynthesis — The Processes of the Initial Electron Transfer Reaction.- Femtosecond Kinetics of Special Pair Bleaching and Electron Transfer in Rhodobacter sphaeroides Reaction Centers.- Ultrafast Energy Transfer within the Bacterial Photosynthetic Reaction Centers.- Slow Charge Separation in a Minority of Reaction Centers Correlated with a Blueshift of theP860-Band in Rb. sphaeroides.- Reaction Centers Heterogeneity Probed by Mutlipulse Photoselection Experiments with Picosecond Time Resolution.- Characteristics of the Electron Transfer Reaction in the M21OW Reaction Centre only Mutant of Rhodobacter sphaeroides.- Ultrafast Electron and Excitation Energy Transfer in Modified Photosynthetic Reaction Centers from Rhodobacter sphaeroides.- Pressure Dependence of Energy and Electron Transfer in Photosynthetic Complexes.- Femtosecond Spectroscopy and Vibrational Coherence of Membrane-Bound RCs of Rhodobacter sphaeroides Genetically Modified at Position M210 and L181.- Femtosecond Infrared Spectroscopy on Reaction Centers of Rb. Sphaeroides.- Energetics of the Primary Charge Separation in Bacterial Photosynthesis.- Effects of Static Heterogeneity on the Parallel-Sequential-Superexchange Mechanism for the Primary Charge Separation in Bacterial Photosynthesis.- Structural and Functional Properties of the State P+· Q-· from Transient EPR Spectroscopy.- Light-Induced Changes in Transient EPR Spectra of $$ P_{{865}}^{{ + \cdot }}Q_A^{{ - \cdot }} $$.- Quantum Beats as Probe of the Primary Events in Bacterial Photosynthesis.- Asymmetry of the Binding Sites of $$ Q_A^{{ - \cdot }} $$ and $$ Q_B^{{ - \cdot }} $$ in Reaction Centers of Rb. sphaeroides Probed by Q-Band EPR with 13C-Labeled Quinones.- Alternate Reaction Center Acceptors: Spectral Signatures and Redox Properties of Pheoporphyrin, Zinc and Copper Bacteriochlorin Anion Radicals.- Protein-Quinone Interactions in Photosynthetic Bacterial Reaction Centers Investigated by Light-Induced FTIR Difference Spectroscopy.- FTIR Spectroscopic Characterization of the QA and QB Binding sites in Rhodobacter sphaeroides R26 Reaction Centers.- Site-Directed Isotope Labelling as a Tool in Spectroscopy of Photosynthetic Preparations. Investigations on Quinone Binding in Bacterial Reaction Centers.- Index of Authors.