InCh 518 Structure determination of crystals, in particular of metal complexes with special properties (e.g. magnetic or catalytic) or which can act as models for the active sites in metalloproteins. The purpose of the studies is to explain their properties by comparison with those of related compounds. In some cases data are collected at various temperatures to study phase transitions. There is still a need for further development of the methods and computer programs for processing crystallographic data, especially for combining different methods and also for comparisons with relevant data from the literature (A. Hazell and R.G. Hazell).
InCh 521 Intramolecular electron transfer processes in mixed-valence complexes and properties related to host-guest interactions in porous crystalline materials. The experimental technique is primarily multi-temperature diffraction measurements using X-ray-, neutron- and synchrotron X-ray radiation with subsequent calculation and analysis of electron density distributions and atomic thermal motion (B.B. Iversen and F.K. Larsen).
InCh 522 Synthesis and characterization of novel materials such as: High Tc materials, intermetallic compounds, binary and ternary nitrides and coordination framework compounds based on multidentate ligands and transition metal cations. X-ray and neutron diffraction is mainly used for structure determination as well as studies of phase transitions and solid state chemical reactions. In addition, X-ray absorption spectroscopy (XANES/EXAFS) is used for studies of valence states and structure (J.-E. Jørgensen).
InCh 523 High temperature synthesis and new materials like high Tc superconductors and hydrothermal synthesis of microporous compounds. Characterization by differential thermal analysis and thermogravimetric analysis and by X-ray and neutron diffraction analysis. In-situ studies of synthesis and phase transitions (A. Nørlund Christensen).