Probing electronic structures of metal complexes from the ligand side using soft x-ray absorption spectroscopy
Abstract
Metal-ligand delocalization in metal complexes participating in various chemical processes was probed from the ligand side using nitrogen K-edge x-ray absorption spectroscopy (XAS). The electronic structures, spin multiplicities, and hydration structures of metal complexes in solutions with different metal ion centers, such as iron and cobalt protoporphyrin IX complexes, were investigated by N K-edge XAS. The influence of a phytol chain in chlorophyllain the solid phase was studied by the XAS measurements with a radiation-induced effect which may cleave the phytol chain. Time-resolved N K-edge XAS measurements at the 100 ps timescale were used to examine the photorelaxation process of iron phenanthroline complexes in aqueous solution. Future directions of studies of various chemical and biological processes that involve metal complexes using N K-edge XAS measurements of ligands are discussed.
Read the paper
Related studies
- The potential and limitations of neutrons, electrons and X-rays for atomic resolution microscopy of unstained biological molecules
- X-ray-Computed Tomography Contrast Agents
- Reactivity of Surface Species in Heterogeneous Catalysts Probed by In Situ X-ray Absorption Techniques
- Single-crystal X-ray diffraction studies on structural transformations of porous coordination polymers
- Investigation of solid/vapor interfaces using ambient pressure X-ray photoelectron spectroscopy
- Resonant X-Ray Scattering Studies of Charge Order in Cuprates
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.