Results 1 to 10 of about 179,442 (256)

The TDDFT Excitation Energies of the BODIPYs; The DFT and TDDFT Challenge Continues

Molecules, 2021
The derivatives of 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) are pivotal ingredients for a large number of functional, stimuli-responsive materials and therapeutic molecules based on their photophysical properties, and there is a urgent need to
Adrien Schlachter, Alexandre Fleury, Kevin Tanner, Armand Soldera, Benoit Habermeyer, Roger Guilard, Pierre D. Harvey   +6 more
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Photophysical study and in vitro approach against Leishmania panamensis of dicloro-5,10,15,20-tetrakis(4-bromophenyl)porphyrinato Sn(IV) [version 3; peer review: 2 approved]

F1000Research, 2021
Background: Photodynamic therapy activity against different biological systems has been reported for porphyrins. Porphyrin modifications through peripheral groups and/or by metal insertion inside the ring are main alternatives for the improvement of its ...
Fabián Espitia-Almeida, Carlos Diaz-Uribe, William Vallejo, Doris Gómez-Camargo, Arnold R. Romero Bohórquez, Cristian Linares-Flores   +5 more
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Synthesis, electronic and photophysical properties of a bisacridinium-Zn(II) porphyrin conjugate

Comptes Rendus. Chimie, 2021
The synthesis of a novel bisacridinium-Zn(II) porphyrin is reported and its properties investigated via electrochemical, photophysical and computational studies. Cyclic voltammetry studies revealed a two-electron oxidation of the Zn(II) porphyrin and the
Edo-Osagie, Amy, Sánchez-Resa, Daniel, Serillon, Dylan, Bandini, Elisa, Gourlaouen, Christophe, Jacquot de Rouville, Henri-Pierre, Ventura, Barbara, Heitz, Valérie   +7 more
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Spectroscopic Investigations of Porphyrin-TiO₂ Nanoparticles Complexes

Molecules, 2022
This study presents the spectral characterization of TiO2 nanoparticles (NPs) functionalized with three porphyrin derivatives: 5,10,15,20-(Tetra-4-aminophenyl) porphyrin (TAPP), 5,10,15,20-(Tetra-4-methoxyphenyl) porphyrin (TMPP), and 5,10,15,20-(Tetra-4-
Andra Dinache, Simona Nistorescu, Tatiana Tozar, Adriana Smarandache, Mihai Boni, Petronela Prepelita, Angela Staicu   +6 more
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Porphyrin Wheels [PDF]

Journal of the American Chemical Society, 1996
A simple method to prepare porphyrin 'wheels' on a micrometer scale is described. It is possible to arrange several types of porphyrin derivatives, including Protoporphyrin IX and Chlorophyll-a, in the form of rings using this method. A mechanism for the formation of these types of assemblies is proposed that is based on the generation of '2D-gas ...
Schenning, A.P.H.J, Benneker, F.B.G., Geurts, H.P.M., Liu, X.Y., Nolte, R.J.M.   +4 more
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Synthesis and Applications of Porphyrin-Biomacromolecule Conjugates

Frontiers in Chemistry, 2021
With potential applications in materials and especially in light-responsive biomedicine that targets cancer tissue selectively, much research has focused on developing covalent conjugation techniques to tether porphyrinoid units to various ...
Pravin Pathak, Mohammad Amin Zarandi, Xiao Zhou, Janarthanan Jayawickramarajah, Janarthanan Jayawickramarajah   +4 more
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Anthracene‐Porphyrin Nanoribbons

Angewandte Chemie International Edition, 2023
Abstract π‐Conjugated nanoribbons attract interest because of their unusual electronic structures and charge‐transport behavior. Here, we report the synthesis of a series of fully edge‐fused porphyrin‐anthracene oligomeric ribbons (dimer and trimer), together with a computational study of the corresponding ...
Zhu, H, Chen, Q, Rončević, I, Christensen, KE, Anderson, HL   +4 more
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Fullerene—Porphyrin Constructs [PDF]

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Boyd, Peter DW, Reed, Christopher A
openaire   +4 more sources

Electron Spin Relaxation of Photoexcited Porphyrin in Water—Glycerol Glass

Molecules, 2020
Recently, the photoexcited triplet state of porphyrin was proposed as a promising spin-label for pulsed dipolar electron paramagnetic resonance (EPR).
Natalya Sannikova, Ivan Timofeev, Elena Bagryanskaya, Michael Bowman, Matvey Fedin, Olesya Krumkacheva   +5 more
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Interlocked Porphyrin Switches [PDF]

Chemistry – A European Journal, 2013
AbstractWe describe the synthesis of a series of interlocked structures from porphyrin–glycoluril cage compounds and bis(olefin)‐terminated viologens by an olefin‐metathesis protocol. The length of the chain connecting the olefin substituents with the viologen has a marked effect on the products of the ring‐closure reaction.
Coumans, R.G.E., Coumans, R.G.E., Elemans, J.A.A.W., Rowan, A.E., Rowan, A.E., Nolte, R.J.M.   +5 more
openaire   +5 more sources