Results 51 to 60 of about 2,844 (154)

New insights on microscopic properties of metal-porphyrin complexes attached to quartz crystal sensor

Scientific Reports, 2021
A quartz crystal adsorbent coated with 5,10,15,20-tetrakis(4-methylphenyl) porphyrin was used to examine the complexation phenomenon of three metallic ions [aluminum(III), iron(III) and indium(III)].
Haifa Alyousef, Badriah M. Alotaibi, Mohamed Ben Yahia, Meznah M. Alanazi, Norah A. Alsaif   +4 more
doaj   +1 more source

Zinc metalloporphyrin-functionalised nanoparticle anion sensors.

, 2004
Disulfide-functionalised zinc metalloporphyrins self-assembled on gold nanoparticles exhibit remarkable, surface-enhanced, anion binding affinities as compared to the free ...
Cormode, DP, Beer, Paul, Davis, Jason
core   +1 more source

Non‐Covalent PL, CD, and CPL Activation of Linear Aromatic Oligomers within Axially Chiral Aromatic Capsules

Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.
Linear aromatic oligomers display intense photoluminescence (PL), circular dichroism (CD), and circularly polarized luminescence (CPL) properties upon non‐covalent encapsulation by axially‐chiral aromatic capsules under ambient aqueous conditions.
Yoshihisa Hashimoto, Yuya Tanaka, Daiki Tauchi, Masashi Hasegawa, Michito Yoshizawa   +4 more
wiley   +2 more sources

Coordination Chemistry of Boron Subphthalocyanine With BINOL Derivatives: Unexpected Oxidation to Oxa[4]Helicene and Properties of the Resulting Axially Coordinated Complexes Containing Oxa[4]Helicene and/or BINOL Derivatives

Chemistry – A European Journal, EarlyView.
Treatment of BINOL with a boron subphthalocyanine derivative resulted in the formation of a complex coordinated to an oxa[4]helicene derivative, which is generated via a ring‐closure reaction of BINOL. In contrast, treatment of the monomethyl ether of 1,1′‐bi‐2‐naphthol (BINOL) afforded the expected axially coordinated complex.
Shafikul Islam, Kazuyuki Asahi, Hiroyuki Nishikawa, Daiki Tauchi, Masashi Hasegawa, Ken‐ichi Sugiura   +5 more
wiley   +1 more source

Exploring the Boundaries of Aromaticity in Complex Structures and Excited States Through Computational Analysis

Chemistry – A European Journal, EarlyView.
Understanding aromaticity has evolved from benzene‐centric concepts to a broad multidimensional framework spanning organic, inorganic, and excited‐state systems. This review highlights ambiguities between magnetic, electronic, geometric, and energetic descriptors, emphasizing the need for unified, multi‐criteria approaches.
Sílvia Escayola, Miquel Solà, Albert Poater   +2 more
wiley   +1 more source

METALLOPORPHYRINS

Journal of Biological Chemistry, 1940
W. Mansfield Clark, Marie E. Perkins
  +6 more sources

Application of Rh(III)-Metalloporphyrin Grafted Fe3O4 Nanoparticles for the Extraction of Thiocyanate Ions from Aqueous Solutions [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2015
A new sorbent composed of 3-aminopropyltriethoxy-silane-coated magnetic nanoparticles, functionalized with rhodium(III) porphyrin complex was synthesized and characterized by elemental analysis, X-Ray Diffraction (XRD), Transmission Electron Microscopy ...
Tahereh Poursaberi, Vahide Akbar, Seyed Mohammad Reza Shoja   +2 more
doaj  

Synthesis, spectroscopic characterization and thermogravimetric analysis of two series of substituted (metallo)tetraphenylporphyrins

Beilstein Journal of Nanotechnology, 2017
Subsequent treatment of H2TPP(CO2H)4 (tetra(p-carboxylic acid phenyl)porphyrin, 1) with an excess of oxalyl chloride and HNR2 afforded H2TPP(C(O)NR2)4 (R = Me, 2; iPr, 3) with yields exceeding 80%.
Rasha K. Al-Shewiki, Carola Mende, Roy Buschbeck, Pablo F. Siles, Oliver G. Schmidt, Tobias Rüffer, Heinrich Lang   +6 more
doaj   +1 more source

Using Displacement‐Assisted Desorption to Identify Reactive Intermediates: Ring‐Fused Porphyrins on Cu(111)

Chemistry – A European Journal, EarlyView.
We propose a novel displacement‐assisted approach for temperature‐programmed desorption (TPD), allowing for the detection of reactive intermediates of on‐surface reactions. We demonstrate the approach by investigating the temperature‐dependent ring fusion reactions (cyclodehydrogenations) of tetraphenylporphyrin on Cu(111), revealing the quantitative ...
Simon Steinbach, Alisson Ceccatto, Maximilian Muth, Hans‐Peter Steinrück, Ole Lytken   +4 more
wiley   +1 more source

Polyoxometalates in Photocatalytic CO2 Reduction: Multielectron Redox Regulation Across Molecular and Hybrid Architectures

EcoEnergy, EarlyView.
This review focuses on multielectron redox regulation across molecular and hybrid architectures for photocatalytic CO2 reduction, covering intrinsic POM photocatalysts, photosensitizer‐assisted assemblies, POM–metal–organic complexes, and POM‐integrated semiconductors and MOF/COF heterostructures to link structural motifs with charge transport, product
Bonan Li, Xiaowen Ruan, Sai Kishore Ravi
wiley   +1 more source