RT Journal Article
T1 Unveiling the nature of supramolecular crown ether–C60 interactions
A1 Moreira, Luis
A1 Calbo, Joaquín
A1 Krick Calderón, Rafael M.
A1 Santos, José
A1 Illescas, Beatriz M.
A1 Aragó, Juan
A1 Nierengarten, Jean-Françoise
A1 Guldi, Dirk M.
A1 Orti, Enrique
A1 Martín, Nazario
AB 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, which were determined by a number of complementary spectroscopic techniques. 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, p–p, n–p and CH/p interactions, which is the basis for theaffinity of our novel receptors towards C60.
PB RSC
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/35100
UL https://hdl.handle.net/20.500.14352/35100
LA eng
NO Unión Europea. FP7
NO Comunidad de Madrid
NO Ministerio de Economía y Competitividad (MINECO)
NO Generalitat Valenciana
NO European FEDER
DS Docta Complutense
RD 18 abr 2025