Structural dynamics of a photoexcited dicopper(I) complex probed with ultrafast X-ray and optical techniques / Maria Naumova ; [Gutachter der Dissertation: Prof. Dr. Gerald Henkel, Prof. Dr. Michael Rübhausen]. Paderborn, 2017
Inhalt
- Introduction
- Copper: chemical properties and biological relevance
- Introduction
- Electronic structure and coordination geometries of copper
- Copper enzymes for ET
- Thiolate-disulfide equilibrium
- Photophysical properties of transition metal complexes
- General aspects of photophysics of transition metal complexes
- Photophysical properties of copper complexes
- Structural dynamics upon photoexcitation in copper complexes
- Experimental X-rays techniques
- X-ray absorption spectroscopy (XAS)
- X-ray absorption fine structure
- X-ray absorption near edge structure (XANES)
- Extended X-ray absorption fine structure (EXAFS)
- Experimental setup for X-ray absorption spectroscopy
- X-ray emission spectroscopy (XES)
- Wide-angle X-ray scattering (WAXS)
- Pump-probe time-resolved X-ray techniques
- Photoinduced structural dynamics of a dicopper-disulfide complex Cu2(NSSN)2
- Physical and chemical properties of Cu2(NSSN)2
- Synthesis, characterisation and structure discussion
- Electronic structure in the ground state
- Excited states
- Choosing the solvent
- Photostability of the complex
- Transient UV-vis absorption spectroscopy
- Transient X-ray absorption spectroscopy
- Experiment description
- Estimation of excited state fraction in the laser-illuminated volume
- Ground state EXAFS
- Transient XANES
- Transient EXAFS
- Excited state kinetics
- Summary
- Transient wide-angle X-ray scattering and transient X-ray emission spectroscopy
- Discussion of the photocycle of Cu2(NSSN)2
- Summary, conclusions and outlook
- Acronyms
- Chemical nomenclature
- Bibliography
- Acknowledgments