From Supramolecular Chemistry Towards Adaptive Chemistry

Naše fakulta hostí přednášku nobelisty prof. J. M. Lehna

Srdečně vás zveme na přednášku nositele Nobelovy ceny za chemii za rok 1987 a čestného doktorátu UK prof. J.M. Lehna z University Strasbourg "From Supramolecular Chemistry Towards Adaptive Chemistry", která se koná ve středu 26. června 2024 v 10:30 ve Velké geologické posluchárně na Albertově. Prof. J.M. Lehn se zúčastní rovněž setkání tří nobelistů pod názvem Sounds of Science ve Stavovském divadle v pátek 28. června 2024. Bližší informace najdete v této aktualitě.

Přirodovědecká fakulta, Univerzita Karlova: prof. J.M Lehn, University Strasbourg: "From Supramolecular Chemistry Towards Adaptive Chemistry."

KDY: středa 26. června 2024 v 10:30

KDE: Velká geologická posluchárna, Albertov 6, Praha 2

Abstract:

Supramolecular chemistry is intrinsically a dynamic chemistry in view of the lability of the interactions connecting the molecular components of a supramolecular species and the resulting ability to exchange components. The same holds for molecular chemistry when the molecular entity contains covalent bonds that may form and break reversibly. These features allow for a continuous change in constitution by reorganization and exchange of building blocks and define a Constitutional Dynamic Chemistry (CDC) covering both the molecular and supramolecular levels.

CDC takes advantage of dynamic diversity to allow variation and selection and operates on dynamic constitutional diversity in response to either internal or external factors to achieve adaptation.

It generates networks of dynamically interconverting constituents, constitutional dynamic networks, that may respond to perturbations by physical stimuli or to chemical effectors. Of special interest is the case where the driving force is an increase in order.

The implementation of these concepts points to the emergence of adaptive and evolutive chemistry, towards systems of increasing complexity.