N-Heterocyclic carbenes as toolkits for the preparation of supramolecular assemblies and switchable catalysts

During the last five years we devoted our research toward broadening the applications of planar extended p-conjugated NHC ligands for the preparation of organometallic-based supramolecular structures,^[1] including their use as hosts for some selected organic and inorganic guests, together with the catalytic properties displayed by some selected host-guest inclusion complexes. Our contribution describes the design of several Ni-,^[2] Pd-^[3] and Au-based^[4] metallorectangles, and metalloprisms, which we used for the encapsulation of several organic substrates, such as polycyclic aromatic hydrocarbons (PAHs) and fullerenes. We also described a series of di-gold(I)-based metallotweezers,^[5] and even a new mechanically interlocked molecule (MIM) that we named clippane.^[6] Depending on their structural features, these species were used for the recognition of a variety of organic substrates, such as electron-deficient aromatic substrates, polycyclic aromatic hydrocarbons and heavy metal cations.

In addition to all this, we recently focused our attention on the design of redox-switchable catalysts based on the use of a naphthalene-di-imide core. ^[7] We will show how these redox switchable catalysts can be used for unveiling key information about the mechanism of certain catalytic reactions.

References

[1]             S. Ibáñez, M. Poyatos, E. Peris, Acc. Chem. Res. 2020, 53, 1401–1413.

[2]             V. Martinez-Agramunt, D. G. Gusev, E. Peris, Chem. Eur. J. 2018, 24, 14802-14807.

[3]             V. Martinez-Agramunt, T. Eder, H. Darmandeh, G. Guisado-Barrios, E. Peris, Angew. Chem. Int. Ed. 2019, 58, 5682-5686; C. Vicent, V. Martinez-Agramunt, V. Gandhi, C. Larriba-Andaluz, D. G. Gusev, E. Peris, Angew. Chem. Int. Ed. 2021, 60, 15412-15417.

[4]             S. Ibáñez, E. Peris, Angew. Chem. Int. Ed. 2019, 58, 6693-6697; S. Ibañez, E. Peris, Angew. Chem. Int. Ed. 2020, 59, 6860-6865.

[5]             S. Ibáñez, M. Poyatos, E. Peris, Angew. Chem. Int. Ed. 2017, 56, 9786-9790; S. Ibáñez, M. Poyatos, E. Peris, Angew. Chem. Int. Ed. 2018, 57, 16816-16820.

[6]             S. Ibáñez, C. Vicent, E. Peris, Angew. Chem. Int. Ed. 2022, 61, e202112513.

[7]             C. Ruiz-Zambrana, A. Gutierrez-Blanco, S. Gonell, M. Poyatos, E. Peris, Angew. Chem. Int. Ed. 2021, 60, 20003-20011; C. Ruiz-Zambrana, M. Poyatos, E. Peris, ACS-Catalysis 2022, 10.1021/acscatal.1022c00613.

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