Modifying Carbon Nanotubes with Electroactive Systems

The readily available and highly versatile electron donor exTTF molecule has proved its efficiency for the design of unprecedented receptors for fullerenes and other carbon nanoforms. In this regard, custom-made tweezers and macrocyclic receptors are proving a valuable alternative to achieve the affinity and selectivity required to meet goals such as the selective extraction of higher fullerenes, their chiral resolution or the self-assembly of functional molecular materials.^[1] In this presentation some important breakthroughs based on electroactive systems derived from exTTF as molecular and macrocyclic receptors for single wall carbon nanotubes will be highlighted. Bowl and belt-shaped CNTs receptors based on this concave-convex complementarity principle will also be presented.^[2] The recognition motives have been applied with the aim of  modifying their electronic properties,^[3] as well as for the hierarchical organization of mesoscopic 3D helical fibers.^[4]

References:

[1] a) E. M. Pérez, L. Sánchez, G. Fernández, N. Martín, J. Am. Chem. Soc., 2006, 128, 7172-7173; b) E. M. Pérez, N. Martín, Chem. Soc. Rev., 2008, 37, 1512-1519; c) D. Canevet, E. M. Pérez, N. Martín, Angew. Chem. Int. Ed. 2011, 50, 9248 – 9259.

[2] a) M. Gallego, J. Calbo, J. Aragó, R. M. Krick Calderon, F. H. Liquido, T. Iwamoto, A. K. Greene, E. A. Jackson, E. M. Pérez, E. Ortí, D. M. Guldi, L. T. Scott, N. Martín Angew. Chem. Int. Ed., 2014, 53, 2170-2175; b)  A. de Juan, Y. Pouillon, L. Ruiz-González, A. Torres-Pardo, S. Casado, N. Martín, Á. Rubio, E. M. Pérez Angew. Chem. Int. Ed., 2014, 53, 5394-5400; c) H. Isla, E. M. Pérez, N. Martín, Angew. Chem. Int. Ed., 2014, 53, 5629-5633.

[3] a) C. Romero.Nieto, R. García, M. A. Herranz, Ch. Ehli, M. Ruppert, A. Hirsch, D. M. Guldi, N. Martín, J. Am. Chem. Soc., 2012, 134, 9183−9192; b) C. Romero-Nieto, R. García, M. A. Herranz, L. Rodríguez-Pérez, M. Sánchez-Navarro, J. Rojo, N. Martín, D. M. Guldi. Angew. Chem. Int. Ed, 2013, 52, 10216-10220. 

[4] J. López-Andarias, J. L. López, C. Atienza, F. G. Brunetti, C. Romero-Nieto, D. M. Guldi, N. Martín, Nat. Commun., 2014, DOI: 10.1038/ncomms4763.