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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3597
Title: Strong enhancement of two-photon absorption properties in synergic 'semi-disconnected' multiporphyrin assemblies designed for combined imaging and photodynamic therapy
Authors: Mongin O.
Sankar, Muniappan
Charlot M.
Mir Y.
Blanchard-Desce M.
Published in: Tetrahedron Letters
Abstract: The synthesis and photophysical properties of new multiporphyrin assemblies are described. Their design, based on a smooth electronic disconnection between two-photon absorbing (2PA) octupolar or quadrupolar cores and the peripheral porphyrins, leads to a major increase in (non-resonant) 2PA responses in the NIR, while fully retaining the fluorescence and photosensitization properties of isolated porphyrins. This approach, which involves electronic coupling of semi-disconnected moieties in the higher excited states of the synergic systems, is of interest to fully benefit from the advantages of selective 2PA for application in combined two-photon high resolution imaging and photodynamic therapy. © 2013 Elsevier Ltd. All rights reserved.
Citation: Tetrahedron Letters (2013), 54(48): 6474-6478
URI: https://doi.org/10.1016/j.tetlet.2013.09.076
http://repository.iitr.ac.in/handle/123456789/3597
Issue Date: 2013
Keywords: Fluorescence
Photosensitizer
Porphyrin
Singlet oxygen
Sonogashira coupling
Two-photon absorption (2PA)
ISSN: 404039
Author Scopus IDs: 6603898154
6701530390
6701415046
15050980000
7007050928
Author Affiliations: Mongin, O., Chimie et Photonique Moléculaires (CNRS UMR 6510), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France, Institut des Sciences Chimiques de Rennes (CNRS UMR 6226), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France
Sankar, M., Chimie et Photonique Moléculaires (CNRS UMR 6510), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France
Charlot, M., Chimie et Photonique Moléculaires (CNRS UMR 6510), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France
Mir, Y., Chimie et Photonique Moléculaires (CNRS UMR 6510), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France
Blanchard-Desce, M., Chimie et Photonique Moléculaires (CNRS UMR 6510), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France, Univ. Bordeaux, Institut des Sciences Moléculaires (CNRS UMR 5255), 351 Cours de la Libération, F-33405 Talence Cedex, France
Funding Details: ANR PNANO (07-102) is gratefully acknowledged for postdoctoral fellowships to Y. M. and M. S. CNRS is also acknowledged for a grant to M. C. We wish to thank Vincent Hugues and Marine Baudequin for contribution in 2PEF and synthesis, respectively.
Corresponding Author: Blanchard-Desce, M.; Chimie et Photonique Moléculaires (CNRS UMR 6510), Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France; email: m.blanchard-desce@ism.u-bordeaux1.fr
Appears in Collections:Journal Publications [CY]

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