Project Details
Projekt Print View

SPP 1807:  Control of London Dispersion Interactions in Molecular Chemistry

Subject Area Chemistry
Physics
Term from 2015 to 2023
Website Homepage
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 255533046
 
Final Report Year 2023

Final Report Abstract

London dispersion interactions are the driving force for molecular aggregation. As one of the fundamental interactions they play a key role in the thermodynamic stability, molecular recognition, chemical selectivity through transition-state stabilization, protein folding, enzyme catalysis etc. While dispersion interactions help rationalize many common phenonema such as well-established p-p interactions, the related s-p as well as s-s systems have been examined much less. A primary goal of this program was the development of chemical design principles that utilizes London dispersion interactions in the construction of novel molecular structures and chemical reactions. This was achieved through a tight interplay between synthesis, spectroscopy, and theory to quantitatively determine dispersion interactions in chemical (model) systems. The success of the priority program can be rated on the number of outstanding publications throughout the entire ensemble of different projects. There were many challenges to understand and to utilize London dispersion interactions for the preparation of novel molecular structures, to elucidate the transition from molecular to bulk properties, and catalysis through fine tuning of dispersion-energy donors for optimizing the interactions of ligands and substrates in transition states. The following subtopics were emphasized: • Structural studies and quantification of dispersion interactions: Quantification of dispersion-energy donors through systematic studies; Design and preparation of novel intra- or intermolecularly dispersion-stabilized structures. • Dispersion effects on reactivity and in catalysis: Transition-state stabilization through dispersion-energy donors; Solvent-induced modulation of dispersion interactions. • Theory and spectroscopy as tools for the elucidation of dispersion interactions: Experimental and theoretical method development to address dispersion interactions; Molecular spectroscopy to quantify dispersion effects and validate theoretical results. The program resulted in a large number of internationally recognized publications with numerous citations. We were able to set up a wide network with renowned scientists resulting in thriving cooperations and superb exchanges.

Publications

 
 

Additional Information

Textvergrößerung und Kontrastanpassung