Tuning electron donor-acceptor hybrids by alkali metal complexation

Chemistry : a European Journal
Marcus LedererDirk M Guldi

Abstract

A zinc phthalocyanine endowed with four [18]-crown-6 moieties, ZnPcTeCr, has been prepared and self-assembled with either pyridyl-functionalized perylenebisimides (PDI-Py) or fullerenes (C60-Py) to afford a set of novel electron donor-acceptor hybrids. In the case of ZnPcTeCr, aggregation has been circumvented by the addition of potassium or rubidium ions to lead to the formation of monomers and cofacial dimers, respectively. From fluorescence titration experiments, which gave rise to mutual interactions between the electron donors and the acceptors in the excited state, the association constants of the respective ZnPcTeCr monomers and/or dimers with the corresponding electron acceptors were derived. Complementary transient-absorption experiments not only corroborated photoinduced electron transfer from ZnPcTeCr to either PDI-Py or C60-Py within the electron donor-acceptor hybrids, but also the unexpected photoinduced electron transfer within ZnPcTeCr dimers. In the electron donor-acceptor hybrids, the charge-separated-state lifetimes were elucidated to be close to 337 ps and 3.4 ns for the two PDI-Pys, whereas the longest lifetime for the photoactive system that contains C60-Py was calculated to be approximately 5.1 ns.

References

Dec 14, 2002·Chemical Communications : Chem Comm·Dirk M GuldiMaurizio Prato
Feb 15, 2003·Chemical Communications : Chem Comm·Stephen R WilsonDavid I Schuster
May 13, 2004·Chemical Reviews·George W GokelMichelle E Weber
Jun 2, 2005·Chemistry : a European Journal·Mourad ElhabiriJean-François Nierengarten
Jul 26, 2005·Angewandte Chemie·Uwe HahnJean-François Nierengarten
Apr 26, 2006·Chemical Society Reviews·Dirk M GuldiChristian Ehli
Mar 28, 2008·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Christian G ClaessensTomás Torres
Sep 14, 2010·Chemical Communications : Chem Comm·M Victoria Martínez-DíazTomás Torres
Feb 15, 2012·Chemistry : a European Journal·Ana M V M PereiraTomás Torres
Mar 21, 2012·Chemical Communications : Chem Comm·Hiroshi ImahoriYuta Takano
Jul 27, 2012·Chemical Communications : Chem Comm·Dillip K PandaSourav Saha

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Citations

Oct 27, 2015·The Journal of Physical Chemistry. a·Ina D KellnerThomas Drewello
Sep 1, 2016·Journal of the American Chemical Society·Javier Fernández-ArizaTomás Torres
Nov 26, 2015·Chemistry : a European Journal·Michael SekitaTomás Torres
Sep 1, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Marcel KrugDirk M Guldi
Jan 23, 2018·The Journal of Physical Chemistry. a·Ina D KellnerThomas Drewello

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