Results 51 to 60 of about 148,723 (351)

Constructing Covalent Organic Polymers through Dative B─N Bonds: Synthesis, Single Crystal Structures, and Physical Properties

Advanced Functional Materials, EarlyView.
Dynamic linkages are highly attractive in preparing single crystals of covalent organic polymers (COPs). Here, single crystals of two COPs CityU‐15 and CityU‐16 based on reversible B─N bonds are constructed using tetra(4‐pyridyl)tetrathiafulvalene and tetra(4‐pyridyl)porphine as monomers.
Xin Wang, Lei Zhang, Xiang Wang, Tianqi Cheng, Miaomiao Xue, Qiang Dong, Yungkang Peng, Qichun Zhang   +7 more
wiley   +1 more source

Zinc(II)-5,10,15,20-tetrakis(α-pyridino-m-tolyl)porphyrin Tetrabromide

Molbank, 2009
Cationic porphyrins interact strongly with guanine quadruplex (G-quadruplex) DNA. We report the preparation of the zinc(II) complex of a porphyrin bearing cationic side arms, zinc(II)-5,10,15,20-tetrakis(α-pyridino-m-tolyl)porphyrin tetrabromide (ZnmPy),
Satoshi Fujii, Tadayuki Uno, Yoshinobu Ishikawa, Takeshi Yamashita   +3 more
doaj   +1 more source

Synthesis and properties of 5,10,15,20-tetra[4-(3,5-dioctoxybenzamidephenyl] porphyrin and its metal complexes [PDF]

Journal of the Serbian Chemical Society, 2012
A novel 5,10,15,20-tetra[4-(3,5-dioctoxybenzamide)phenyl]porphyrin and its transition metal complexes are reported in this paper. Their molecular structures were characterized by elemental analysis, IR spectra, 1HNMR spectra and UV-Vis spectra.
Lian Wenhui, Sun Yuanyuan, Wang Binbin, Shan Ning, Shi Tongshun   +4 more
doaj   +1 more source

Unusual Bandgap Oscillations in Template-Directed π-Conjugated Porphyrin Nanotubes [PDF]

Journal of Physical Chemistry Letters, 7, 2362 (2016), 2018
Using large-scale DFT calculations (up to 1,476 atoms and 18,432 orbitals), we present the first detailed analysis on the unusual electronic properties of recently synthesized porphyrin nanotubes. We surprisingly observe extremely large oscillations in the bandgap of these nanostructures as a function of size, in contradiction to typical quantum ...
arxiv   +1 more source

2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration

Advanced Functional Materials, EarlyView.
Intercalating multivalent cations into 2D vermiculite nanolaminates significantly improves the structural stability and sieving capabilities of membranes in both aqueous and organic media, rendering them effective for organic solvent nanofiltration. Abstract Membrane separation technology has found widespread application in molecular sieving and water ...
Wensen Wang, Xishun Hao, Youguo Yan, Rong Sun, Eddy Petit, Mathilde Moderne, Ji Li, Jiefeng Liu, Huali Wu, Kun Qi, Camilo Zamora‐Ledezma, Christian Narváez‐Muñoz, Camille Bakkali Hassani, Luc Lajaunie, Philippe Miele, Chrystelle Salameh, Zhiyuan Zeng, Damien Voiry   +17 more
wiley   +1 more source

Reductive Functionalization of Graphenides with Nickel(II) Porphyrin Diazonium Compounds [PDF]

Phys. Status Solidi RRL 2017, 1700306, 2018
A novel type of a graphene/porphyrin hybrid with a direct covalent linker between graphene and a nickel(II) tetraphenylporphyrin unit has successfully been synthesized by the reductive exfoliation/functionalization of potassium intercalated graphite as starting material.
arxiv   +1 more source

Synthesis of Self-Assembled Porphyrin Nanoparticle Photosensitizers.

ACS Nano, 2018
The use of nanoparticles as a potential building block for photosensitizers has recently become a focus of interest in the field of photocatalysis and photodynamic therapy. Porphyrins and their derivatives are effective photosensitizers due to extended π-
Dong Wang, Li-Juan Niu, Z. Qiao, Dong-Bing Cheng, Jiefei Wang, Y. Zhong, Feng Bai, Hao Wang, H. Fan   +8 more
semanticscholar   +1 more source

Recent Advances in Single‐Atom Catalyst for Solar Energy Conversion: A Comprehensive Review and Future Outlook

Advanced Functional Materials, EarlyView.
This review highlights the potential of single‐atom catalysts in three key photocatalytic reactions: the hydrogen evolution reaction (HER), nitrogen reduction reaction for ammonia synthesis, and carbon dioxide reduction reaction (CO2RR) for chemical fuels.
Saad Mehmood, Saddam Sk, B. Moses Abraham, Mohsen Ahmadipour, Ujjwal Pal, Joydeep Dutta   +5 more
wiley   +1 more source

Bis-Porphyrin Racks with Space-Separated Co-Planar Porphyrin Rings

Molecules, 2001
A porphyrin appended norbornenyl building block 8 has been isolated and coupled, using a 1,3-dipolar ACE reaction, to yield bis-porphyrin compounds in which the porphyrin moietes are angled upward relative to the norbornane backbone.
Martin R. Johnston
doaj   +1 more source

Porphyrin as Diagnostic and Therapeutic Agent

Molecules, 2019
The synthesis and application of porphyrins has seen a huge shift towards research in porphyrin bio-molecular based systems in the past decade. The preferential localization of porphyrins in tumors, as well as their ability to generate reactive singlet ...
N. Tsolekile, Simphiwe Nelana, O. Oluwafemi   +2 more
semanticscholar   +1 more source