Results 41 to 50 of about 6,458 (220)

One-pot general synthesis of metalloporphyrins

open access: yes, 2007
A new general one-pot method for the synthesis of various metalloporphyrins has been developed from pyrrole and substituted aldehydes using transition metal salts. This method allows higher working concentrations than those previously reported.
Maji, Suman   +5 more
core   +1 more source

Nuclear magnetic resonance of paramagnetic metalloporphyrins [PDF]

open access: yes, 1984
The present article reviews and discusses proton magnetic resonance studies on metalloporphyrins which provide good models for heme proteins in their physical and chemical properties.
Mitra, Samaresh, Dugad, L. B.
core   +1 more source

In Vitro Anti-Leishmanial Effect of Metallic Meso-Substituted Porphyrin Derivatives against Leishmania braziliensis and Leishmania panamensis Promastigotes Properties

open access: yesMolecules, 2020
In this study, a family of porphyrins based on 5,10,15,20-Tetrakis(4-ethylphenyl)porphyrin (1, Ph) and six metallo-derivatives (Zn2+(2, Ph-Zn), Sn4+(3, Ph-Sn), Mn2+ (4, Ph-Mn), Ni2+ (5, Ph-Ni), Al3+ (6, Ph-Al), and V3+ (7, Ph-V)) were tested as ...
Fabian Espitia-Almeida   +4 more
doaj   +1 more source

Metalloporphyrin Metal–Organic Frameworks: Eminent Synthetic Strategies and Recent Practical Exploitations

open access: yesMolecules, 2022
The emergence of metal–organic frameworks (MOFs) in recent years has stimulated the interest of scientists working in this area as one of the most applicable archetypes of three-dimensional structures that can be used as promising materials in several ...
Arash Ebrahimi, Lukáš Krivosudský
doaj   +1 more source

On-surface transmetalation of metalloporphyrins

open access: yesNanoscale, 2018
Experimental and computational data sheds light onto the metal exchange in porphyrin monolayers.
Diana Hötger   +11 more
openaire   +8 more sources

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Formation, Photophysics, Photochemistry and Quantum Chemistry of the Out-of-Plane Metalloporphyrins

open access: yesHungarian Journal of Industry and Chemistry, 2017
Among the complexes of porphyrins, special attention has been paid to those possessing out-of-plane (OOP) structures, for the formation of which the size, as well as the coordinative character of the metal center are responsible.
Valicsek Zsolt   +4 more
doaj   +1 more source

An Optical Urate Biosensor Based on Urate Oxidase and Long-Lifetime Metalloporphyrins

open access: yesSensors, 2020
Gout is a condition that affects over 8 million Americans. This condition is characterized by severe pain, and in more advanced cases, bone erosion and joint destruction.
Tokunbo Falohun, Michael J. McShane
doaj   +1 more source

Efficient and Selective Oxygenation of Cycloalkanes and Alkyl Aromatics with Oxygen through Synergistic Catalysis of Bimetallic Active Centers in Two-Dimensional Metal-Organic Frameworks Based on Metalloporphyrins

open access: yesBiomimetics, 2023
Confined catalytic realms and synergistic catalysis sites were constructed using bimetallic active centers in two-dimensional metal-organic frameworks (MOFs) to achieve highly selective oxygenation of cycloalkanes and alkyl aromatics with oxygen towards ...
Xin-Yan Zhou   +7 more
doaj   +1 more source

Porphyrinosilica and metalloporphyrinosilica: hybrid organic-inorganic materials prepared by sol-gel processing

open access: yesAnais da Academia Brasileira de Ciências, 2000
New materials porphyrinosilica and metalloporphyrinosilica template have been obtained by a sol-gel processing where functionalyzed porphyrins and metalloporphyrins "building blocks" were assembled into a three-dimensional silicate network. The optimized
YASSUKO IAMAMOTO   +4 more
doaj   +1 more source

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