Single crystal diffractometer

• Subject Area: Analytical Chemistry
• Term: Funded in 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 426604062

Powerful single crystal diffractometers today essentially are equipped with a microfocuse x-ray tube and a "noiseless" detector. In this way can data sets be obtained which allow an unambiguous characterization of organic, inorganic and coordination compounds according to the current standard. In particular, when investigating reactivities or, more generally, chemical and physical properties of new compounds, an exact knowledge of the structure is necessary to deduce possible correlations. Above all, molecule-oriented work groups are of course dependent on single-crystal structure analysis. The single-crystal structure analysis is used by all groups taking part in the application as proof of the successful synthesis and as a basis for publications. In the past numerous structure-property relationships could be derived. For example, the influence of distortion of the coordination polyhedron in a series of cobalt (II) compounds on molecular magnetic properties has been demonstrated. In another project, intermolecular interactions responsible for the occurrence of cooperativity could be confirmed. The importance of local symmetry in transition-metal complexes for the electronic properties is investigated in Mainz as well as, for example, the nature of multiple bonds in main-group organyls. In addition to analytical structure determination by means of single-crystal diffractometry, solid-state chemical questions on fundamental aspects of superstructures or incommensurately modulated structures are of interest.

• DFG Programme: Major Research Instrumentation
• Major Instrumentation: Einkristalldiffraktometer
• Instrumentation Group: 4010 Einkristall-Diffraktometer
• Applicant Institution: Johannes Gutenberg-Universität Mainz
• Leader: Professorin Dr. Eva Rentschler