Supramolecular chemistry group

This Centre of Excellence (CoE) focuses on fostering innovation in resource efficiency, promoting circular economy practices, utilizing local resources, ensuring safe material circulation, and educating researchers to reduce environmental impacts. It centers around four key areas: Strategic Mineral Resources (SMR), Carbon-Based Resources (CBR), Circular Technologies Upscaling (CTU), and Circular Business Eco-System and Modeling (CBEM). The SMR group maps critical materials in waste streams, including renewables, for extraction and reuse while minimizing hazardous waste. The CBR group develops eco-friendly pathways for essential chemicals and plastics, also assessing their environmental impact. The CTU group pioneers waste reduction and recycling methods for aqueous, and solid waste, incl. water purification. The CBEM group analyzes sustainable business ecosystems and value chains. This CoE's interdisciplinary approach will benefit both Estonia and Europe by advancing circular economy.

Sensing, capturing and separating enantiomers is important for environmental safety, agricultural chemistry, and drug design. The use of hemicucurbiturils is an effective strategy because of the combination of various monomers in a single-step templated mechanochemical synthesis. Due to the absence of bulk solvent the self-organizing efficiency is amplified and there is less waste - the process is green and sustainable. The current work will study the fundamentals of self-organization of hemicucurbiturils, the binding (capturing) of chiral molecules, and detecting chirality using supramolecular complexes. In the long term, the empirical observations will be combined with results from computational chemistry and cheminformatics to build models for predicting necessary monomers and reaction conditions to form macrocycles with desired properties. The outcomes of the project are expected to be highly useful for organizations and industries that monitor, use, or manufacture chiral compounds

As the concentrations of CO2 in the atmosphere continue to rise, methods for alleviation are desperately needed. Instead of a greenhouse gas, CO2 can also be a valuable resource, but this requires technology to split it up. Among the proposed technologies to split CO2 is its capture and electrolysis in molten salts, turning CO2 into solid carbon and gaseous oxygen. This project aims to further this technology by looking closely at the processes taking place and creating new ways of valorizing the products to create a financial incentive for scaling. Smart utilization of this powerful technology will allow us to not only directly reduce the amount of CO2 in the atmosphere, but also to limit future emissions by empowering CO2-free energy conversion devices such as fuel cells, batteries, and supercapacitors. To keep the CO2 equivalents low and to not offset the positive effect of CO2 capture and utilization, the effect of green chemistry principles and their utilization will also be studied.