Sarova G, Hartnagel U, Balbinot D, Sali S, Jux N, Hirsch A, Guldi DM (2008)
Publication Type: Journal article, Original article
Publication year: 2008
Original Authors: Sarova G.H., Hartnagel U., Balbinot D., Sali S., Jux N., Hirsch A., Guldi D.M.
Publisher: Wiley-VCH Verlag
Book Volume: 14
Pages Range: 3137-3145
Journal Issue: 10
Mono- and bis-functionalized C and C fullerene derivatives (DF, 1-10) that carry one or two oligoanionic dendritic termini in their malonate addends and an oligocationic octapyridinium zinc porphyrin salt (ZnP) were found to self-assemble in buffered aqueous solution to yield a novel series of 1:1 and/or 1:2 electron transfer hybrid associates. Remarkably high association constants-typically on the order of 10 M - were derived that corroborate stable complex formations. A combination of electrostatic and charge-transfer interactions that are operative between the electron-accepting DF and the electron-donating ZnP is considered to contribute to the uniquely high complex stability. First insight into intracomplex excited state interactions came from steady-state and time-resolved fluorescence quenching experiments that were performed with the molecular ZnP/DF hybrid as_sociates. Excited state quenching processes are, for example, evident in form of a bi-exponential fluorescence decay of ZnP - corresponding to a distribution of associated and non-associated ZnP. Unambiguous evidence for an intracomplex electron transfer quenching, namely, formation of ZnP/C and ZnP/C radical ion pairs, was gathered in time-resolved transient absorption measurements. Lifetimes of these radical ion-pairs range from nanoseconds to a few microseconds. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
APA:
Sarova, G., Hartnagel, U., Balbinot, D., Sali, S., Jux, N., Hirsch, A., & Guldi, D.M. (2008). Testing electron transfer within molecular associates built around anionic C60 and C70 dendrofullerenes and a cationic zinc porphyrin. Chemistry - A European Journal, 14(10), 3137-3145. https://dx.doi.org/10.1002/chem.200701462
MLA:
Sarova, Ginka, et al. "Testing electron transfer within molecular associates built around anionic C60 and C70 dendrofullerenes and a cationic zinc porphyrin." Chemistry - A European Journal 14.10 (2008): 3137-3145.
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