Nanoscale chemical reaction exploration with a quantum magnifying glass

Katja-Sophia Csizi, Miguel Steiner and Markus Reiher ()
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Katja-Sophia Csizi: Department of Chemistry and Applied Biosciences
Miguel Steiner: Department of Chemistry and Applied Biosciences
Markus Reiher: Department of Chemistry and Applied Biosciences

Nature Communications, 2024, vol. 15, issue 1, 1-15

Abstract: Abstract Nanoscopic systems exhibit diverse molecular substructures by which they facilitate specific functions. Theoretical models of them, which aim at describing, understanding, and predicting these capabilities, are difficult to build. Viable quantum-classical hybrid models come with specific challenges regarding atomistic structure construction and quantum region selection. Moreover, if their dynamics are mapped onto a state-to-state mechanism such as a chemical reaction network, its exhaustive exploration will be impossible due to the combinatorial explosion of the reaction space. Here, we introduce a “quantum magnifying glass” that allows one to interactively manipulate nanoscale structures at the quantum level. The quantum magnifying glass seamlessly combines autonomous model parametrization, ultra-fast quantum mechanical calculations, and automated reaction exploration. It represents an approach to investigate complex reaction sequences in a physically consistent manner with unprecedented effortlessness in real time. We demonstrate these features for reactions in bio-macromolecules and metal-organic frameworks, diverse systems that highlight general applicability.

Date: 2024
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DOI: 10.1038/s41467-024-49594-2

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