Abstract
A series of resorcinarene-PAMAM-porphyrin dendrimers was synthesized. The nanostructures were characterized by IR, 1H and 13C NMR, UV-vis absorption, electrospray ionization and MALDI-TOF mass spectrometry. The morphological properties were characterized by High-Resolution Transmission Electron Microscopy (HRTEM). The distance between the resorcinarene group and the porphyrin group was variable: two different lengths of the dendritic branches were synthesized, which were found to play an important role in influencing the fluorescence properties. It was also possible to observe by HRTEM microscopy that the dendrimers were nearly monodisperse, retained their size and their shape was roughly spherical. Experimental data confirmed that the PAMAM groups favored the intense emission and red shift of the maximum wavelength. It is possible that the fluorescence centers were perturbed by the inner influence between the PAMAM groups. These nanostructures could be used for the conversion of photoenergy.
Keywords: Resorcinarene, PAMAM, porphyrin, dendrimers, nanostructured multiporphyrin, spectroscopic properties.
Graphical Abstract
Current Organic Chemistry
Title:Nanostructured Multiporphyrin Dendrimers: Synthesis, Characterization and Their Spectroscopic Properties
Volume: 22 Issue: 23
Author(s): Luis D. Pedro-Hernández, Sandra Cortez-Maya, José Calderón-Pardo, Simón Hernández-Ortega and Marcos Martínez-García*
Affiliation:
- Instituto de Quimica, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Circuito Exterior, Coyoacan, C.P. 04510, Mexico D.F,Mexico
Keywords: Resorcinarene, PAMAM, porphyrin, dendrimers, nanostructured multiporphyrin, spectroscopic properties.
Abstract: A series of resorcinarene-PAMAM-porphyrin dendrimers was synthesized. The nanostructures were characterized by IR, 1H and 13C NMR, UV-vis absorption, electrospray ionization and MALDI-TOF mass spectrometry. The morphological properties were characterized by High-Resolution Transmission Electron Microscopy (HRTEM). The distance between the resorcinarene group and the porphyrin group was variable: two different lengths of the dendritic branches were synthesized, which were found to play an important role in influencing the fluorescence properties. It was also possible to observe by HRTEM microscopy that the dendrimers were nearly monodisperse, retained their size and their shape was roughly spherical. Experimental data confirmed that the PAMAM groups favored the intense emission and red shift of the maximum wavelength. It is possible that the fluorescence centers were perturbed by the inner influence between the PAMAM groups. These nanostructures could be used for the conversion of photoenergy.
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Cite this article as:
Pedro-Hernández D. Luis , Cortez-Maya Sandra , Calderón-Pardo José , Hernández-Ortega Simón and Martínez-García Marcos *, Nanostructured Multiporphyrin Dendrimers: Synthesis, Characterization and Their Spectroscopic Properties, Current Organic Chemistry 2018; 22 (23) . https://dx.doi.org/10.2174/1385272822666181024124335
DOI https://dx.doi.org/10.2174/1385272822666181024124335 |
Print ISSN 1385-2728 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5348 |
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