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The photophysical properties of the +2 and +3 dinuclear complexes have been studied using fluorescence spectroscopy and time correlated single photon counting (TCSPC) lifetime spectroscopy. In addition, the +3 dinuclear Ru complex has been synthesized in an enantiomerically pure fashion and will be used to study the effect of intramolecular charge transfer on the optical response of these compounds by using circular dichroism spectroscopy. The optical activity of the mononuclear Ru(phen)2(phendione) precursor is retained in the A and A enantiomers of the +3 dinuclear Ru complex. It is proposed that these compounds may impart some of that optical activity to other nanomaterials.
Comprehensive theoretical and experimental analysis of UV-radiation and low energy electron induced phenomena in nucleic acid bases (NABs) and base assemblies are presented in this book. NABs are highly photostable; the absorbed energy is dissipated in the form of ultrafast nonradiative decay. This book highlights the possible mechanisms of these phenomena which is important for all living species and discusses technical challenges in exploration of these processes.
The past few years have witnessed intense research in this fascinating field as well as many controversial discussions. Now the time is ripe for a comprehensive book covering not only theoretical aspects, but also such mechanistic topics as principles and mechanisms of photoinduced charge injection, transport and trapping in DNA, sequence-dependent DNA dynamics, spectroscopic investigations of hole transport and much more. From the contents: * Principles and Mechanisms of Photoinduced Charge Injection, Transport and Trapping in DNA * Sequence-Dependent DNA Dynamics: The Regulator of DNA-Mediated Charge Transport * Excess Electron Transfer in DNA Probed with Flavin and Thymine Dimer Modified Oligonucleotides * Dynamics of Photoinitiated Hole and Electron Injection in Duplex DNA * Spectroscopic Investigation of Oxidative Hole Transfer via Adenine Hopping in DNA * Chemical Probing of Reductive Electron Transfer in DNA * Chemical Approach for Modulating Hole Transport in DNA * Spectroscopic Investigation of Charge Transfer in DNA * Spectroscopic Probing of Ultrafast Structural Relaxation and Electron Transfer Dynamics in DNA Edited by Hans-Achim Wagenknecht, and written by renowned international authors, this book provides an excellent overview with high quality contributions, making it a "must-have" for everyone working in the field.