Cationic indium complexes halve H2 partial pressure in CO2 reductive coupling reactions with amines

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10503577" target="_blank" >RIV/00216208:11310/25:10503577 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fjZfIlN0es" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fjZfIlN0es</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcat.2025.116445" target="_blank" >10.1016/j.jcat.2025.116445</a>

Result language
angličtina
Original language name
Cationic indium complexes halve H2 partial pressure in CO2 reductive coupling reactions with amines
Original language description
Indium-catalysed homogeneous hydrogenations are limited to imine hydrogenation due to the low thermal and hydrolytic stability of In(C6F5)(3), the only indium Lewis acid used thus far for hydrogenation chemistry. In this study, we present [In(terpy)Cl(2)](+) cations as Lewis acid catalysts. With an optimal vacant site for H2 activation and a hydride ion affinity of up to 579 kJ mol(-1), [In(terpy)Cl(2)](+) effectively catalysed CO2 reductive coupling with amines under H2 (50 bar) and CO2 (4 bar) pressure, as structurally confirmed by XRD and NMR spectroscopy. By catalysing CO2 reductive coupling with amines at half the partial pressure of all other main-group catalytic systems with H2, cationic indium complexes set a new benchmark for such reactions. Therefore, this study not only expands the scope of indium-based catalysis beyond imine hydrogenation but also highlights the potential of ligand-supported indium Lewis acids as catalytic systems for small-molecule activation.
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
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/GM21-27431M" target="_blank" >GM21-27431M: Lewis acids and frustrated Lewis pairs for reductive coupling reactions of carbon dioxide with amines</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

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