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Noncovalent functionalization of thiopyridyl porphyrins with ruthenium phthalocyanines

(2015) CHEMPLUSCHEM. 80(5). p.832-838
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Abstract
Preconditions for the design of efficient organic solar-light-converting systems are strong absorptions across the visible region, the capacity to funnel excited state energy by intermolecular energy transfer, and alternative association processes in the photoinduced electron transfer. In this context, thiopyridyl porphyrins (PorSPy) and ruthenium phthalocyanines (RuPcs) proved to be versatile building blocks for the construction of novel supramolecular Por-Pc hybrid systems (PorSPy-RuPc) by axial coordination at ruthenium. The thiopyridyl groups placed at the bay region of the porphyrins coordinate the RuPc dye. A notable redistribution of the electron density in the new heterochromophore structures evidences the electron-donating/-accepting communication between the two dyes in the supramolecular hybrids. These structural hybrids were investigated physicochemically by means of their ground and excited state reactivities. Photophysical investigation by time-resolved transient absorption, mainly fluorescence and femtosecond spectroscopy, evidenced efficient intermolecular energy transfer from the photoexcited central porphyrin to the peripheral phthalocyanines in the supramolecular multichromophore ensembles. The findings may give impetus for the design of interesting materials for solar-light-converting systems.
Keywords
phthalocyanines, porphyrins, donor-acceptor systems, SENSITIZED SOLAR-CELLS, ruthenium, supramolecular chemistry, ELECTRON-TRANSFER PROCESSES, PHOTOVOLTAIC CELLS, ENERGY CONVERSION, FULLERENE, COMPLEXES, SUBPHTHALOCYANINE, EFFICIENCY, NANOTUBES, ENSEMBLES

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MLA
Lourenço, Leandro MO et al. “Noncovalent Functionalization of Thiopyridyl Porphyrins with Ruthenium Phthalocyanines.” CHEMPLUSCHEM 80.5 (2015): 832–838. Print.
APA
Lourenço, L. M., Hausmann, A., Schubert, C., Neves, M. G., Cavaleiro, J. A., Torres, T., Guldi, D. M., et al. (2015). Noncovalent functionalization of thiopyridyl porphyrins with ruthenium phthalocyanines. CHEMPLUSCHEM, 80(5), 832–838.
Chicago author-date
Lourenço, Leandro MO, Anita Hausmann, Christina Schubert, Maria GPMS Neves, José AS Cavaleiro, Tomás Torres, Dirk M Guldi, and João Tomé. 2015. “Noncovalent Functionalization of Thiopyridyl Porphyrins with Ruthenium Phthalocyanines.” Chempluschem 80 (5): 832–838.
Chicago author-date (all authors)
Lourenço, Leandro MO, Anita Hausmann, Christina Schubert, Maria GPMS Neves, José AS Cavaleiro, Tomás Torres, Dirk M Guldi, and João Tomé. 2015. “Noncovalent Functionalization of Thiopyridyl Porphyrins with Ruthenium Phthalocyanines.” Chempluschem 80 (5): 832–838.
Vancouver
1.
Lourenço LM, Hausmann A, Schubert C, Neves MG, Cavaleiro JA, Torres T, et al. Noncovalent functionalization of thiopyridyl porphyrins with ruthenium phthalocyanines. CHEMPLUSCHEM. 2015;80(5):832–8.
IEEE
[1]
L. M. Lourenço et al., “Noncovalent functionalization of thiopyridyl porphyrins with ruthenium phthalocyanines,” CHEMPLUSCHEM, vol. 80, no. 5, pp. 832–838, 2015.
@article{7140064,
  abstract     = {Preconditions for the design of efficient organic solar-light-converting systems are strong absorptions across the visible region, the capacity to funnel excited state energy by intermolecular energy transfer, and alternative association processes in the photoinduced electron transfer. In this context, thiopyridyl porphyrins (PorSPy) and ruthenium phthalocyanines (RuPcs) proved to be versatile building blocks for the construction of novel supramolecular Por-Pc hybrid systems (PorSPy-RuPc) by axial coordination at ruthenium. The thiopyridyl groups placed at the bay region of the porphyrins coordinate the RuPc dye. A notable redistribution of the electron density in the new heterochromophore structures evidences the electron-donating/-accepting communication between the two dyes in the supramolecular hybrids. These structural hybrids were investigated physicochemically by means of their ground and excited state reactivities. Photophysical investigation by time-resolved transient absorption, mainly fluorescence and femtosecond spectroscopy, evidenced efficient intermolecular energy transfer from the photoexcited central porphyrin to the peripheral phthalocyanines in the supramolecular multichromophore ensembles. The findings may give impetus for the design of interesting materials for solar-light-converting systems.},
  author       = {Lourenço, Leandro MO and Hausmann, Anita and Schubert, Christina and Neves, Maria GPMS and Cavaleiro, José AS and Torres, Tomás and Guldi, Dirk M and Tomé, João},
  issn         = {2192-6506},
  journal      = {CHEMPLUSCHEM},
  keywords     = {phthalocyanines,porphyrins,donor-acceptor systems,SENSITIZED SOLAR-CELLS,ruthenium,supramolecular chemistry,ELECTRON-TRANSFER PROCESSES,PHOTOVOLTAIC CELLS,ENERGY CONVERSION,FULLERENE,COMPLEXES,SUBPHTHALOCYANINE,EFFICIENCY,NANOTUBES,ENSEMBLES},
  language     = {eng},
  number       = {5},
  pages        = {832--838},
  title        = {Noncovalent functionalization of thiopyridyl porphyrins with ruthenium phthalocyanines},
  url          = {http://dx.doi.org/10.1002/cplu.201500005},
  volume       = {80},
  year         = {2015},
}

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