Our group provides research support by means of X-ray crystal structure analysis, electron microscopy, and elemental analysis. In addition to supporting on the individual method, we propose multifaceted research support by combining these methods. To keep our support at the highest level quality, we always update our knowledge and make training in our skills. We make tight and deep collaboration with researchers to achieve their scientific purposes and to propose new insights into the research from analytical point of view, in addition to providing routinely analysis. Furthermore, we challenge to develop unexplored measurement methods directed to more advanced and sophisticated analyses.
Visualization of chemical bonds by accurate X-ray analysis
Our team has investigated nature of molecules, which have unusual chemical bonds and show less stability, in the crystalline state by analyzing distribution of valence electrons derived from accurate and precise single crystal X-ray crystal structure analysis.
Conventional X-ray diffraction method clarifies arrangement of atoms in the crystalline state by modeling total electron density distribution using spherical atom (isolated atom) models. As widely recognized, the resulted structures give important information on the nature of molecules. However, valence density distribution, which plays critical roles in chemistry of molecule, is not included in the resulted models. For deeply understanding the nature and chemistry of the analyzed molecule, in particular, reactivity, charge separation, bonding mode and intermolecular interaction, the valence densities should be analyzed. In this study, the valence densities are analyzed by applying multipole models instead of the spherical atom models to gain much direct information on the electronic structure of molecules.
Distribution of 3d-electrons in Ni(II) complex and bonding electrons.
Licensed under CC BY 4.0.
Scientists map nickel-based catalyst’s electrons and reveal acid–base action
