Self‐Assembled Supported Ionic Liquids

Tavera Méndez CL, Bergen A, Trzeciak S, Heinemann FW, Graf R, Zahn D, Meyer K, Hartmann M, Wisser D, Trzeciak S (2023)

Publication Type: Journal article

Publication year: 2023


DOI: 10.1002/chem.202303673


Separation and reuse of the catalytically active metal complexes are persistent issues in homogeneous catalysis. Supported Ionic Liquid Phase (SILP) catalysts, where the catalytic center is dissolved in a thin film of a stable ionic liquid, deposited on a solid support, present a promising alternative. However, the dissolution of the metal center in the film leaves little control over its position and its activity. We present here four novel, task-specific ionic liquids [FPhnImHR]I (n = 1, 2; R = PEG2, C12H25), designed to self-assemble on a silica surface without any covalent bonding and offering a metal binding site in a controlled distance to the support. Advanced multinuclear solid-state NMR spectroscopic techniques under Magic Angle Spinning, complemented by molecular dynamics (MD) simulations, allow us to determine their molecular conformation when deposited inside SBA-15 as a model silica support. We provide here conceptual proof for a rational design of Ionic Liquids self-assembling into thin films, opening an avenue for a second, improved generation of SILP catalysts.

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Tavera Méndez, C.L., Bergen, A., Trzeciak, S., Heinemann, F.W., Graf, R., Zahn, D.,... Trzeciak, S. (2023). Self‐Assembled Supported Ionic Liquids. Chemistry - A European Journal.


Tavera Méndez, Cindy Ly, et al. "Self‐Assembled Supported Ionic Liquids." Chemistry - A European Journal (2023).

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