By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Biological Factors are presented in a new report. According to news reporting originating in Strasbourg, France, by NewsRx journalists, research stated, "The photophysical properties of a supramolecular fullerene-porphyrin ensemble resulting from the self-assembly of a pyrrolidinofullerene-imidazole derivative (F1) with a multimetalloporphyrin array constructed around a hexasubstituted fullerene core (F(ZnP)(12)) have been investigated. The fullerene hexa-adduct core of the host system does not play any active role in the cascade of photoinduced events of the supramolecular ensemble, indeed no intercomponent photoinduced processes could be observed in host F(ZnP)(12)."
The news reporters obtained a quote from the research from the University of Strasbourg, "In contrast, upon axial coordination with the monosubstituted fullerene guest F1, a quantitative quenching of the fluorescence signal of the metalloporphyrins was observed for the supramolecular complex [F(ZnP)(12)(F1)(n)] both in polar and nonpolar solvents. In toluene, the supramolecular ensemble exhibits a charge transfer emission centered around 930nm, suggesting the occurrence of intramolecular face-to-face interactions of F1 with neighboring metalloporphyrin moieties within the self-assembled photoactive array. This mechanism is supported by the fact that a one order of magnitude increase in the binding constant was observed for the supramolecular complex [F(ZnP)(12)(F1)(n)] when compared with a reference system lacking the pyrrolidinofullerene unit."
According to the news reporters, the research concluded: "In benzonitrile, a long-lived charge-separated state (=0.3s) has been detected for the supramolecular adduct."
For more information on this research see: A Supramolecular Photosynthetic Model Made of a Multiporphyrinic Array Constructed around a C-60 Core and a C-60-Imidazole Derivative. Chemistry-A European Journal, 2014;20(1):223-231. Chemistry-A European Journal can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany (see also Biological Factors).
Our news correspondents report that additional information may be obtained by contacting K. Yoosaf, Univ Strasbourg, Lab Physicochim Bioinorgan, F-67087 Strasbourg 2, France. Additional authors for this research include J. Iehl, I. Nierengarten, M. Hmadeh, A.M. Albrecht-Gary, J.F. Nierengarten and N. Armaroli.
Keywords for this news article include: France, Europe, Carbon, Strasbourg, Fullerenes, Nanotechnology, Supramolecular, Biological Factors, Emerging Technologies
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