Results 21 to 30 of about 129,557 (299)

Proof of concept for molecular velcro based on the attractive interaction between porphyrin and pyridine containing copolymers

eXPRESS Polymer Letters, 2018
In this short communication, we investigated the synthesis and mixing of porphyrin and pyridine functionalized copolymers as a proof of concept for a velcro-like interaction.
M. Sievers, J. C. Namyslo, F. Lederle, E. G. Huebner   +3 more
doaj   +1 more source

Synthesis of Fe(II)/Co(II)-Fused Triphenyl Porphyrin Dimer as Candidate for Oxygen Reduction Reaction Catalyst

Indonesian Journal of Chemistry, 2021
This paper reports the synthesis of Fe(II)/Co(II) fused triphenyl porphyrin dimers as candidate of hybrid organic metal electrocatalyst. The synthesis was conducted in five-step reactions using the starting materials pyrrole and benzaldehyde.
Atmanto Heru Wibowo, Anggit Pradifta, Abu Masykur, Ken-ichi Yamashita, Yosuke Tani, Ari Yustisia Akbar, Takuji Ogawa   +6 more
doaj   +1 more source

Chiral porphyrin assemblies

Aggregate, 2023
Porphyrins are among the most important macrocycles because they perform many essential functions in living systems and serve as building blocks in many functional materials. Incorporating the chirality into porphyrins can aid biomimetic research and the
Li Zhang, Tianyu Wang, Jianzhuang Jiang, Minghua Liu   +3 more
doaj   +1 more source

Potential Driven Non-Reactive Phase Transitions of Ordered Porphyrin Molecules on Iodine-Modified Au(100): An Electrochemical Scanning Tunneling Microscopy (EC-STM) Study [PDF]

, 2018
The modelling of long-range ordered nanostructures is still a major issue for the scientific community. In this work, the self-assembly of redox-active tetra(N-methyl-4-pyridyl)-porphyrin cations (H2TMPyP) on an iodine-modified Au(100) electrode surface ...
Blanco, Mat\uedas, Granozzi, Gaetano, Kosmala, Tomasz, Wandelt, Klaus   +3 more
core   +1 more source

Porphyrin-Based Covalent Organic Frameworks: Design, Synthesis, Photoelectric Conversion Mechanism, and Applications

Biomimetics, 2023
Photosynthesis occurs in high plants, and certain organisms show brilliant technology in converting solar light to chemical energy and producing carbohydrates from carbon dioxide (CO2).
Xiaoyu Li, Chuanyin Tang, Li Zhang, Mingyang Song, Yujie Zhang, Shengjie Wang   +5 more
doaj   +1 more source

Photolysis of methylcobalamin. Nature of the reactive excited state [PDF]

, 1993
Photolysis of methylcobalamin (Co(III)corrin(CH3)L + H2O + O2 â > Co(III)(H2O)L + H2CO + OH-) shows a pronounced wave-length dependence. It is suggested that the reactive excited state is of the ligand-to-ligand charge transfer (LLCT) type and involves ...
Kunkely, Horst, Vogler, Arnd
core   +1 more source

Electron-transport properties of ethyne-bridged diphenyl zinc-porphyrin molecules

, 2015
We investigate the electron-transport properties of ethyne-bridged diphenyl zinc-porphyrin molecules suspended between gold (111) electrodes by first-principles calculations within the framework of density functional theory.
Nguyen, Huy Duy, Ono, Tomoya
core   +1 more source

Amplified singlet oxygen generation in metallated-porphyrin doped conjugated polymer nanoparticles [PDF]

, 2018
We report on the mechanism and efficiencies of singlet oxygen O2(1Δg) generation of nanoparticles (NP) of the conjugated polymer (CP) poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) doped with platinum octaethylporphyrin (PtOEP) suspended in water.
Chesta, Carlos Alberto, Hernández, Laura, Ibarra, Luis Exequiel, Lorente, Carolina, Macor, Lorena Paola, Palacios, Rodrigo Emiliano, Ponzio, Rodrigo Andrés, Spada, Ramiro Martín   +7 more
core   +2 more sources

meso-5,15-Bis[3-(isopropylidenegalactopyranoxy)phenyl]-10,20-bis(4-methylphenyl)porphyrin

IUCrData
The crystal structure of a glycosylated porphyrin (P_Gal2) system, C70H70N4O12, where two isopropylidene protected galactose moieties are attached to the meso position of a substituted tetraaryl porphyrin is reported.
Mickey Vinodh, Fatemeh H. Alipour, Talal F. Al-Azemi   +2 more
doaj   +1 more source

Synthesis and Spectroscopic Characterization of Some New Axially Ligated Indium(III) Macrocyclic Complexes and Their Biological Activities

Bioinorganic Chemistry and Applications, 2014
The synthesis and spectroscopic characterization of new axially ligated indium(III) porphyrin complexes were reported. Chloroindium(III) porphyrin (TPPIn-Cl) was obtained in good yield by treating the corresponding free base with indium trichloride. The
Gauri D. Bajju, Altaf Ahmed, Deepmala Gupta, Ashu Kapahi, Gita Devi   +4 more
doaj   +1 more source