2D supramolecular assemblies of benzene-1,3,5-triyl-tribenzoic acid: 
Temperature-induced phase transformations and hierarchical organization with 
macrocyclic molecules

Ruben, M.; Payer, D.; Landa, A.; Comisso, A.; Gattinoni, C.; Lin, N.; Collin, J. P.; Sauvage, J. P.; De Vita, A.; Kern, K.

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2D supramolecular assemblies of benzene-1,3,5-triyl-tribenzoic acid: Temperature-induced phase transformations and hierarchical organization with macrocyclic molecules

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Payer, D.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Lin, N.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Kern, K.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Ruben, M., Payer, D., Landa, A., Comisso, A., Gattinoni, C., Lin, N., et al. (2006). 2D supramolecular assemblies of benzene-1,3,5-triyl-tribenzoic acid: Temperature-induced phase transformations and hierarchical organization with macrocyclic molecules. Journal of the American Chemical Society, 128(49), 15644-15651.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FF3F-E

Abstract

Two-dimensional supramolecular honeycomb networks with cavities of an
internal diameter of 2.95 nm were formed by the self-assembly of
4,4',4"-benzene-1,3,5-triyl-tribenzoic acid (BTA) on a Ag(111) surface
at room temperature. Annealing to higher temperatures resulted in two
sequential phase transformations into closer-packed supramolecular
arrangements. The phase transformations are associated with stepwise
deprotonation of the carboxylic acid groups. The voids of the honeycomb
network of BTA have a suitable size for the construction of
hierarchical structures with guest molecules. Single molecules of the
macrocyclic compound mt-33 were successfully confined inside 2D
nanocavities of the honeycomb networks and released when the phase was
transformed to the close-packed structure.