Unveiling the nature of supramolecular crown ether-C60 interactions

Moreira L, Calbo J, Krick Calderon R, Santos J, Illescas BM, Arago J, Nierengarten JF, Guldi DM, Orti E, Martin N (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Chemical Science Royal Society of Chemistry

Book Volume: 6

Pages Range: 4426-4432

Journal Issue: 8

DOI: 10.1039/c5sc00850f

Abstract

A series of exTTF-(crown ether)2 receptors, designed to host C60, has been prepared. The size of the crown ether and the nature of the heteroatoms have been systematically changed to fine tune the association constants. Electrochemical measurements and transient absorption spectroscopy assisted in corroborating charge transfer in the ground state and in the excited state, leading to the formation of radical ion pairs featuring lifetimes in the range from 12 to 21 ps. To rationalize the nature of the exTTF-(crown ether)2·C60 stabilizing interactions, theoretical calculations have been carried out, suggesting a synergetic interplay of donor-acceptor, π-π, n-π and CH⋯π interactions, which is the basis for the affinity of our novel receptors towards C60.

Authors with CRIS profile

Rafael Krick Calderon Lehrstuhl für Physikalische Chemie I Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I

Involved external institutions

Universidad Complutense de Madrid (UCM) ES Spain (ES) University of València / Universitat de València ES Spain (ES) Université de Strasbourg (UDS) FR France (FR)

How to cite

APA:

Moreira, L., Calbo, J., Krick Calderon, R., Santos, J., Illescas, B.M., Arago, J.,... Martin, N. (2015). Unveiling the nature of supramolecular crown ether-C60 interactions. Chemical Science, 6(8), 4426-4432. https://doi.org/10.1039/c5sc00850f

MLA:

Moreira, Luis, et al. "Unveiling the nature of supramolecular crown ether-C60 interactions." Chemical Science 6.8 (2015): 4426-4432.

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