SPP 2491:  Interactive Spin-State Switching

• Subject Area: Chemistry ; Physics
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 540869726

The PP2491 “Interactive spin-state switching” aims at a systematic investigation of the impact of the surroundings on spin-state switching and vice versus. To achieve these goals and to bring German science to the cutting edge of this field, this PP brings together scientists from all over Germany from the fields of coordination chemistry, surface deposition and characterization, time-resolved optical and X-ray spectroscopies, and theory to focus their research and to connect the scientists from the different disciplines. Only a strong collaboration between the different disciplines in interdisciplinary research projects can realize the targeted in-depth understanding of switching processes. We aim to have a vivid exchange within and between participating consortia of the PP. The measures planned in the coordination project are designed to foster the interaction between the participating groups, and to invite further groups to join the initiative, in particular young PIs and female PIs. The coordination project of the PP2491 will cover five different areas to promote interaction, visibility, and personal development of junior researchers. It will (i) foster the networking between participating groups, (ii) increase international visibility, (iii) define uniform concepts for data storage, (iv) support the personal and scientific advancement of young PhD students and (v) provide a teaching and training platform for advanced time-resolved structural techniques.

• DFG Programme: Priority Programmes
• International Connection: Austria, Switzerland

Projects

• 3d-Metal Talk – Merging Iron Spin Crossover and Chromium Luminescence (Applicants Bauer, Matthias ;  Heinze, Katja ;  Krewald, Vera )
• Assessing the impact of cooperativity in spin crossover complexes by integration into polymers (Applicants Fennel, Franziska ;  Gräfe, Stefanie ;  Schubert, Ulrich S. ;  Weber, Birgit )
• Coordination Funds (Applicant Weber, Birgit )
• Dual stimuli spin-crossover coordination cages in solution - theory and experiment (Applicants Lützen, Arne ;  McConnell, Anna ;  Podewitz, Maren )
• Immobilization of redox-driven spin state switches (Applicants Krewald, Vera ;  Sarkar, Biprajit ;  van Slageren, Joris )
• Intramolecular interactions in di- and trinuclear Fe(II) spin-crossover complexes - X-ray absorption, quantum-chemical and THz-spectroscopic investigations (Applicants Kuch, Wolfgang ;  Neese, Frank ;  Tuczek, Felix )
• Light- versus electron-induced spin-state switching of complexes on insulating layers (Applicants Gruber, Ph.D., Manuel ;  Herrmann, Carmen ;  Wende, Heiko )
• Live Long and Prosper – Coordination-induced Spin State Switching in Photoactive 3d8 Complexes (Applicants Kupfer, Stephan ;  Schwarzer, Dirk )
• On-surface coupling of spin-crossover molecules - scanning tunneling microscopy investigations (Applicants Berndt, Richard ;  Tuczek, Felix )
• Singlet Fission-Based Spin-State Switching in Germanium Diadicals - SFS3 (Applicants Dietzek-Ivansic, Benjamin ;  Kühne, Alexander ;  Richert, Sabine )
• Spin-State Switching in Trinuclear Exchange-Coupled Systems (Applicants Fink, Karin ;  Plass, Winfried ;  Röhlsberger, Ralf )
• Unravelling magnetic switching of spin crossover complexes at nanoscale (Applicants Jelezko, Fedor ;  Ruben, Mario )

• Spokesperson: Professorin Dr. Birgit Weber