Unveiling the nature of supramolecular crown ether-C 60 interactions
A series of exTTF-(crown ether) receptors, designed to host C , 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 cor...
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| Veröffentlicht in: | Chemical science (Cambridge) 2015-01, Vol.6 (8), p.4426-4432 |
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| container_title | Chemical science (Cambridge) |
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| creator | Moreira, Luis Calbo, Joaquín Krick Calderon, Rafael M Santos, José Illescas, Beatriz M Aragó, Juan Nierengarten, Jean-François Guldi, Dirk M Ortí, Enrique Martín, Nazario |
| description | A series of exTTF-(crown ether)
receptors, designed to host C
, 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)
·C
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 C
. |
| doi_str_mv | 10.1039/c5sc00850f |
| format | Article |
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receptors, designed to host C
, 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)
·C
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 C
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receptors, designed to host C
, 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)
·C
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; PubMed Central |
| title | Unveiling the nature of supramolecular crown ether-C 60 interactions |
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