Versatile bisethynyl[60]fulleropyrrolidine scaffolds for mimicking artificial light-harvesting photoreaction centers
| Autor: | Kremer, Adrian, Bietlot, Emerance, Zanelli, Alberto, Malicka, Joanna M., Armaroli, Nicola, Bonifazi, Davide |
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| Přispěvatelé: | Kremer, Adrian, Bietlot, EMERANCE CHANTAL M, Zanelli, Alberto, Malicka, Joanna M., Armaroli, Nicola, Bonifazi, Davide |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
PHOTOVOLTAIC DEVICES
Fullerene Pyrrolidines Light ELECTROCHEMICAL PROPERTIES Light-Harvesting Protein Complexes Phenothiazine Electron donor Photochemistry Catalysis Photoinduced electron transfer Pyrrolidine Fluorescence Electron Transport chemistry.chemical_compound Synthetic methods TRANSIENT ABSORPTION Phenothiazines Energy transfer Fullerenes Light harvesting Spectroelectrochemistry Electrochemical Techniques Energy Transfer Spectrometry Fluorescence Chemistry (all) PHOTOSYNTHETIC ANTENNA Electrochemical Technique Synthetic method Spectrometry Organic Chemistry ELECTRON-TRANSFER PROCESSES FULLERENE DERIVATIVES General Chemistry AZOMETHINE YLIDES Benzonitrile chemistry Ferrocene Light-Harvesting Protein Complexe PHOTOPHYSICAL PROPERTIES Cyclic voltammetry ENERGY-TRANSFER CHARGE SEPARATION |
| Zdroj: | Chemistry (Weinh., Print) 21 (2015): 1108–1117. doi:10.1002/chem.201404372 info:cnr-pdr/source/autori:Kremer, Adrian and Bietlot, Emerance and Zanelli, Alberto and Malicka, Joanna M. and Armaroli, Nicola and Bonifazi, Davide/titolo:Versatile Bisethynyl[60]fulleropyrrolidine Scaffolds for Mimicking Artificial Light-Harvesting Photoreaction Centers/doi:10.1002%2Fchem.201404372/rivista:Chemistry (Weinh., Print)/anno:2015/pagina_da:1108/pagina_a:1117/intervallo_pagine:1108–1117/volume:21 |
| DOI: | 10.1002/chem.201404372 |
| Popis: | Fullerene-based tetrads, triads, and dyads are presented in which [60]fulleropyrrolidine synthons are linked to an oligo(p-phenyleneethynylene) antenna at the nitrogen atom and to electron-donor phenothiazine (PTZ) and/or ferrocene (Fc) moieties at the α carbon of the pyrrolidine cycle through an acetylene spacer. Cyclic voltammetry and UV/ Vis absorption spectra evidence negligible ground-state electronic interactions among the subunits. By contrast, strong excited-state interactions are detected upon selective light irradiation of the antenna (UV) or of the fullerene scaffold (Vis). When only PTZ is present as electron donor, photoinduced electron transfer to the fullerene unit is unambiguously detected in benzonitrile, but this is not the case when Fc is part of the multicomponent system. These results suggest that Fc is a formidable energy transfer quencher and caution should be used in choosing it as electron donor to promote efficient charge separation in multicomponent arrays. |
| Databáze: | OpenAIRE |
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