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 Studies of temperature dependence of crystal structures and their physical and chemical properties. Studies of intra molecular electron transfer processes in polynuclear mixed-valence transition metal complexes. Studies of hydrogen bonding in structures possessing biologically important structural motifs. 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 (F.K. Larsen).
InCh 524 Physical inorganic chemistry. Based on a wide range of experimental techniques we study newly synthesized materials with important chemical and physical properties. The experimental techniques include single crystal/powder (synchrotron) X-ray and neutron diffraction (including magnetic neutron scattering), measurement of electrical and thermal conductivity, Seebeck and Hall coefficient, magnetic susceptibility, and heat capacity, X-ray spectroscopy (XANES/EXAFS) and thermal analysis (DTA/DSC). Special emphasis is given to the structure of nano-framework materials and their thermoelectric, catalytic, magnetic or optoelectronic properties, molecular magnetic materials based on polynuclear transition metal complexes (nano magnetism), molecular catalysts (especially oxidation processes), and biological model systems containing strong hydrogen bonds (Bo Brummerstedt Iversen).
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 Synthesis and characterization of new nano-porous materials. A large variety of novel exciting materials can be created using organic amines as templates in hydrothermal synthesis with metal phosphates. We study the interaction between the inorganic host structure and the organic guest molecule in order to design new materials. Materials can be characterized by X-ray diffraction and thermal analysis and phase transitions, and reactions can be followed by in-situ powder diffraction (Torben R. Jensen).