1. Functionalization of Carbon Spheres with a Porphyrin−Ferrocene Dyad
- Author
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Roberto Pizzoferrato, Manuela Scarselli, Francesca Limosani, Pietro Tagliatesta, Erica Ciotta, Fabio Possanza, and Robertino Zanoni
- Subjects
carbon materials ,ferrocene ,fluorescence ,porphyrins ,Raman spectroscopy ,Atomic and Molecular Physics, and Optics ,Physical and Theoretical Chemistry ,Fullerene ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,Ring (chemistry) ,01 natural sciences ,chemistry.chemical_compound ,Phenylene ,Atomic and Molecular Physics ,Polymer chemistry ,Molecule ,Settore CHIM/02 - Chimica Fisica ,Chemistry ,Settore CHIM/06 - Chimica Organica ,021001 nanoscience & nanotechnology ,Porphyrin ,Acceptor ,0104 chemical sciences ,raman spectroscopy ,Ferrocene ,and Optics ,0210 nano-technology ,Carbon - Abstract
Meso-tetraphenylporphyrin connected with a ferrocene molecule in the beta-position of the macrocycle through a triple carbon@carbon bond has been bound to carbon spheres using the Prato@Maggini reaction. The ethynyl or/and phenylene ethynylene subunits were chosen as a linking bridge to give a high conjugation degree between the donor (i. e., ferrocene), the photoactive compound (i. e., porphyrin), and the acceptor (i. e., carbon spheres). The molecular bridges have been directly linked to the beta-pyrrole positions of the porphyrin ring, generating a new example of a long-range donor@acceptor system. Steady-state fluorescence studies together with Raman and XPS measurements helped understanding the chemical and physical properties of the porphyrin ring in the new adduct. The spectroscopic characteristics were also compared with those obtained from a similar compound bearing fullerene instead of carbon spheres.  
- Published
- 2018
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