Monitoring on-surface chemical reactions by low-energy electron microscopy: from conformation change to ring closure in 2D molecular gas

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00638859" target="_blank" >RIV/68378271:_____/25:00638859 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/26:0197907 RIV/68407700:21340/25:00381661
Result on the web
<a href="https://hdl.handle.net/11104/0369422" target="_blank" >https://hdl.handle.net/11104/0369422</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/chem.202500561" target="_blank" >10.1002/chem.202500561</a>

Result language
angličtina
Original language name
Monitoring on-surface chemical reactions by low-energy electron microscopy: from conformation change to ring closure in 2D molecular gas
Original language description
On-surface synthesis is a promising strategy for the preparation of molecules that are not achievable otherwise. Understanding the mechanism of on-surface reactions requires knowledge of the molecular structure and possible organization of reactants into supramolecular assemblies during the reaction. Scanning probe techniques are essential for the unambiguous identification of the products and for determining their electronic and magnetic properties. However, these are generally not capable of imaging the surface at reaction conditions and, therefore, answering some of the key questions about the reaction mechanism. Here, we show that real-time low-energy electron microscopy (LEEM) can monitor the surface processes in real time and provide the necessary complementary mechanistic insights into on-surface reactions. We monitor the intramolecular ring-closure reaction of 1,3,5-tris(7-methyl-α-carbolin-6-yl)benzene on the Au(111) surface and show that it takes place in the 2D molecular gas phase at elevated temperatures. Products condense into separate islands upon cooling, enabling fast and efficient assessment of product yields. This makes LEEM an efficient tool for studying intramolecular chemical reactions.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GA22-05114S" target="_blank" >GA22-05114S: Molecular Nanoarchitectonics on Topological Insulator Surfaces</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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