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Angewandte Chemie - International Edition

Volumn 46, Issue 19, 2007, Pages 3521-3525

Tuning electron transfer through translational motion in molecular shuttles

(8) Mateo Alonso, Aurelio a Ehli, Christian b Rahman, G M Aminur b Guldi, Dirk M b Fioravanti, Giulia c Marcaccio, Massimo c Paolucci, Francesco c Prato, Maurizio a

a UNIVERSITY OF TRIESTE (Italy)

b UNIVERSITY OF ERLANGEN NUREMBERG (Germany)

c UNIVERSITY OF BOLOGNA (Italy)

Author keywords

Electron transfer; Fullerenes; Molecular shuttles; Photosynthesis; Rotaxanes

Indexed keywords

FULLERENES; MOLECULAR STRUCTURE; REACTION KINETICS;

ELECTRON TRANSFER; FERROCENE ELECTRON; MACROCYCLE; MOLECULAR SHUTTLES; ROTAXANES;

ELECTRON TRANSITIONS;

FERROCENE; FERROUS ION; FULLERENE DERIVATIVE; MOLECULAR MOTOR; ROTAXANE; SOLVENT;

ARTICLE; CHEMICAL MODEL; CHEMICAL STRUCTURE; CHEMISTRY; ELECTRON TRANSPORT; MOTION; PHOTOCHEMISTRY; SPECTROSCOPY;

ELECTRON TRANSPORT; FERROUS COMPOUNDS; FULLERENES; MODELS, CHEMICAL; MODELS, MOLECULAR; MOLECULAR MOTOR PROTEINS; MOTION; PHOTOCHEMISTRY; ROTAXANES; SOLVENTS; SPECTRUM ANALYSIS;

EID: 34250799767 PISSN: 14337851 EISSN: None Source Type: Journal
DOI: 10.1002/anie.200605039 Document Type: Article

Times cited : (89)

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- The energies of the radical-ion-pair states of 2 and 5 were estimated by adding the first reduction potential of the electron acceptor and the first oxidation potential of the electron donor (reported in Table S1 in the Supporting Information, The values are 1.31 and 1.05 eV in THF and DMSO, respectively, for both 2 and 5. However, only when adding a correction term (D. M. Guldi, M. Maggini, E. Menna, G. Scorrano, P. Ceroni, M. Marcaccio, F. Paolucci, S. Roffia, Chem. Eur. J. 2001, 7, 1597-1605, which accounts for ion-pair electrostatic interactions at the different donor-acceptor distances, do the values start to differ (from 1.1 to 0.9 eV for 2 and from 1.0 to 0.6 eV for 5) by increasing the solvent polarity from CH2Cl2 to DMF
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- -4).

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- The fluorescence lifetime in DMF is likely to be outside the detection range of our apparatus (0.10 ns).

26
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- -9 s) and the enhanced sensitivity.

27
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28
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- Charge recombination kinetics, which are located in the inverted region of the Marcus parabola, also contribute to the shorter lifetimes.

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