JOINT DEPT. OF CHEMISTRY AND IESL SEMINAR

Owing to their remarkable structural and photophysical properties—such as strong absorption and/or emission in the UV-vis and near-infrared (NIR) regions, excellent charge transport capabilities, and extensive chemical versatility—subphthalocyanines (SubPcs) have secured a prominent place among the most extensively studied and versatile porphyrinoid systems [1]. These aromatic macrocycles, distinguished by their unique non-planar geometry, demonstrate considerable potential for a wide range of advanced applications. These include the formation of polar superstructures, the development of thermotropic and lyotropic liquid crystals, and their use as non-fullerene acceptors. We will discuss how SubPcs can be employed in molecular photovoltaics [2], particularly as singlet fission materials [3], and examine the potential of their enantiopure derivatives [4] in chiral technologies [5]. Furthermore, we present the synthesis and characterization of SubPc-based columnar materials [2] and describe on-surface synthetic strategies for the construction of two-dimensional chiral polymers [4a].

References

[1] a) Lavarda, G.; Labella, J.; Martinez-Diaz, M. V.; Rodriguez Morgade, M. S.; Osuka, A.; Torres, T.  Chem.Soc. Rev. 2022, 51, 9482. b) Labella, J.; Torres, T. Trends Chem. 2023, 5, 353.

[2] Labella, J.; Shoyama, K.; Guzmán, D.; Stolte, M.; Torres, T.; Würthner, F. ACS Mater. Lett. 2023, 5, 543.

[3] Gotfredsen, H.; Tykwinski, R.; Torres, T.; Clark, T.; Guldi, D. M. et al. J. Am. Chem. Soc. 2023, 145, 9548.

[4] a) Labella, J.; Lavarda, G.; Hernández, L.; Aguilar, F.; Díaz-Tendero, S.; Lobo-Checa, J.; Torres, T. J. Am. Chem. Soc. 2022, 144, 16579. b) Lavarda, G.; Tejerina, L.; Torres, T.; Martínez, M. V. Chem. Sci. 2024, 15, 19369.

[5] Labella, J.; Kumar Bhowmick, D.; Gupta, A.; Kumar, A.; Lopez, E.; Naaman, R.; Torres, T.  Chem. Sci., 2025,16, 8783

Acknowledgments

T.T. acknowledges financial support from the Comunidad de Madrid and the Spanish State through the Recovery, Transformation and Resilience Plan [“Materiales Disruptivos Bidimensionales (2D)” (MAD2D-CM) (UAM1)-MRR Materiales Avanzados], and the European Union through the Next Generation EU funds.