Cooperativity is a phenomenon that plays a key role in numerous natural processes such as the supramolecular polymerization pathways in virus assemblies. A rational approach to unveil the complexity of these systems lies in the investigation of the mechanisms involved in the self-assembly of their artificial counterparts.We have investigated the influence of self-sorting processes,1 p-p2 and metal-metal interactions3 on the supramolecular polymerization of different oligophenyleneethynylene (OPE) derivatives. Pt���Pt and Pd���Pd interactions induce the cooperative supramolecular polymerization and gelation of a series of OPE derivatives (Figure 1a), whereas the aqueous mixture of two OPE derivatives can lead to either independent micellar associates or ribbon-like co-aggregates depending on the concentration (Figure 1b).Figure 1.a) Chemical structures of different OPE-based metallosupramolecular systems and representation of their self-assembly, gelation and UV-Vis changes upon aggregation. b) Self-recognition vs cooperative co-assembly in a mixture of OPEs.1. a) Safont-Sempere, M. M.; Fern�ndez, G.; W�rthner, F. Chem. Rev., 2011  , 111, 5784. b) Mayoral, M. J.; Rest, C.; Schellheimer, J.; Stepanenko, V; Fern�ndez, G. Chem. Eur. J., 2012  , 18, 15607.2. Florian, A.; Mayoral, M. J.; Stepanenko, V.; Fern�ndez, G. Chem. Eur. J., 2012  , 18, 14957.3. a) Mayoral, M. J.; Fern�ndez, G. Chem. Sci., 2012  , 3, 1395; b) Mayoral, M. J.; Rest, C.; Stepanenko, V.; Schellheimer, J.; Albuquerque, R. Q.; Fern�ndez, G. J. Am. Chem. Soc., 2013  , 135, 2148.

Cooperative supramolecular polymerization: Influence of metallophilic interactions and self-sorting processes

246th National Meeting (2013)

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