Cosy Cost Action Ca21101

With > 460 participants from 45 countries, this COST Action aims to provide a computationally and experimentally sound foundation for the fundamental understanding and control of confined molecular systems, with the resulting outcome being translated into useful knowledge forming the basis for applications. These range from creating a new generation of materials including bio-materials to disclosing the chemistry occurring in space. To this end, we are combining new cutting-edge experimental techniques for the synthesis of novel nanomaterials and high-resolution characterization thereof, with state-of-the-art first principles modelling. The most advanced methods for molecular motion as well as modern artificial intelligence, machine learning technologies, and big data science will be applied. COSY tackles these and other challenges through five strongly correlated work packages: 1. Accurate description of the intermolecular interaction between a molecule and its confining environment through modern first principles tools. Efficient description of molecular motion in confined structures, including coarse-grained, atomistic, and meso-scale molecular dynamics of metal-organic frameworks and biomolecular environments. Synthesis and characterization of the stability and novel properties of metal and metal-oxidenanoparticles and subnanometric clusters for applications such as luminescence, sensing, bio-imaging, theranostics, energy conversion, and (photo-)catalysis. Synthesis, deposition, and properties screening of high-purity innovative nanomaterials, using the verycold and practically inert environment provided by superfluid helium nanodroplets. Accurate characterization of phenomena of astrochemical relevance such as the chemistry and physics occurring on the confining surface of interstellar clouds, using the most advanced spectroscopic techniques, and the highest level ab initio theories and methods for quantum nuclear motion.