Results 11 to 20 of about 44,750 (259)

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
openaire   +2 more sources

Porphyrins at interfaces

Nature Chemistry, 2015
Porphyrins and other tetrapyrrole macrocycles possess an impressive variety of functional properties that have been exploited in natural and artificial systems. Different metal centres incorporated within the tetradentate ligand are key for achieving and regulating vital processes, including reversible axial ligation of adducts, electron transfer ...
Willi Auwärter, David Écija, Florian Klappenberger, Johannes V. Barth   +3 more
openaire   +3 more sources

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

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

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
openaire   +3 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

Porphyrin-Based Nanomaterials for the Photocatalytic Remediation of Wastewater: Recent Advances and Perspectives

Molecules
Self-organized, well-defined porphyrin-based nanostructures with controllable sizes and morphologies are in high demand for the photodegradation of hazardous contaminants under sunlight.
Nirmal Kumar Shee, Hee-Joon Kim
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