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Porphyrins Chemistry in Material Science

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 3204

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Department of Chemical Sciences and Technologies, Tor Vergata University of Rome, Rome, Italy
Interests: porphyrins chemistry; electrochemistry and organometallic chemistry; electron transfer on models with porphyrins and C60; catalysis by metalloporphyrins
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Special Issue Information

Dear Colleagues,

Porphyrins, metalloporphyrins, and related macrocycles are important molecules in several fundamental studies and for applications in important fields. Natural and synthetic porphyrins have been studied for more than a century, and their structures were elucidated by the most important chemists who obtained the Nobel prize for their studies. Recently, such macrocycles have been widely used as active receptors in sensors, as catalysts, in photovoltaic scaffolds, in non-linear optics, in photodynamic therapy, etc. Recently, investigations on materials chemistry have considered more such molecules for new exciting studies. This issue in Materials aims to focalize the attention of the scientific community involved in searching of new materials on these macrocycles, and we hope that this call will encourage further studies on the properties of this class of molecules.

Prof. Dr. Pietro Tagliatesta
Guest Editor

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Keywords

  • porphyrins and metalloporphyrins
  • sensors
  • non-linear optics
  • PDT therapy
  • photovoltaic materials
  • photonics

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Published Papers (1 paper)

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Research

15 pages, 1773 KiB  
Article
Nonlinear Optical Properties of Porphyrin, Fullerene and Ferrocene Hybrid Materials
by Francesca Limosani, Francesca Tessore, Gabriele Di Carlo, Alessandra Forni and Pietro Tagliatesta
Materials 2021, 14(16), 4404; https://doi.org/10.3390/ma14164404 - 6 Aug 2021
Cited by 16 | Viewed by 2692
Abstract
In this research, we investigated the second-order nonlinear optical (NLO) properties of multicomponent hybrid materials formed by meso-tetraphenylporphyrin P (both as free base and ZnII complex), carrying in 2 or 2,12 β-pyrrolic position an electron donor ferrocene (Fc), and/or an electron [...] Read more.
In this research, we investigated the second-order nonlinear optical (NLO) properties of multicomponent hybrid materials formed by meso-tetraphenylporphyrin P (both as free base and ZnII complex), carrying in 2 or 2,12 β-pyrrolic position an electron donor ferrocene (Fc), and/or an electron acceptor fullerene (C60) moiety, connected to the porphyrin core via an ethynyl or an ethynylphenyl spacer. We measured the NLO response by the electric-field-induced second-harmonic generation (EFISH) technique in CH2Cl2 solution with a 1907 nm incident wavelength, recording for all the investigated compounds unexpected negative values of μβ1907. Since density functional theory (DFT) calculations evidenced for P-Fc dyads almost null ground state dipole moments and very low values for P-C60 dyads and Fc-P-C60 triads, our EFISH results suggested a significant contribution to γEFISH of the purely electronic cubic term γ(−2ω; ω, ω, 0), which prevails on the quadratic dipolar orientational one μβ(−2ω; ω, ω)/5kT, as confirmed by computational evidence. Full article
(This article belongs to the Special Issue Porphyrins Chemistry in Material Science)
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