Research Overview

Research in the group is driven by our fascination in the structural chemistry and its ties to the material properties in condensed matter. On-going research directions are:

  • High-Pressure Crystal Chemistry of Soft Materials
  • Barocaloric Properties of Coordination Polymers
  • Information Theory in the Analysis of Crystalline Matter & Molecules
  • Chemical and Structural Flexibility of Coordination Polymers

Our research is at the interface of solid-state inorganics and supramolecular coordination chemistry. In the search for materials with improved, new and unexpected properties we harness the chemical diversity of coordination polymers – the goal is to develop an in-depth understanding of their crystal chemistry as the basis for rational material design. Focus is given to temperature and pressure responsive behaviour such as phase transitions, mechanical properties, negative linear and area compressibilities and negative thermal expansion. While openly fundamental in its nature, our research has strong relations to various applied areas ranging from cooling technologies, material processing and stability, and photovoltaics.

In the pursuit to pin down the relation between composition, structure, and properties, we continuously expand and improve experimental, analytical, and computational methods. Synthesis is complemented by state-of-the-art diffraction and scattering techniques as available at large scale synchrotron and neutron facilities, and custom-made computational tools help us to manage big data and guide us in the interpretation of experimental outcomes.

Some overview publications:
  • P. Vervoorts, J. Stebani, A. S. J. Méndez, G. Kieslich. Structural Chemistry of Metal-Organic Frameworks under Hydrostatic Pressures. ACS Materials Lett. 2021, 3, 1635.
  • C. L. Hobday, G. Kieslich. Structural flexibility in crystalline coordination polymers: a journey along the underlying free energy landscape. Dalton Trans. 2021, 50, 3759-3768.
  • S. Burger, M. Ehrenreich, G. Kieslich. Tolerance Factors of hybrid perovskites: recent improvements and current state of research. J. Mater. Chem. A, 2018, 6, 21785-21793.
  • G. Kieslich, A. Goodwin. The same and not the same: Molecular perovskites and their solid-state analogues. Mater. Horiz. 2017, 4, 362-366.