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Although many compounds look similar to this compound(28903-71-1)Electric Literature of C48H38CoN4O4, numerous studies have shown that this compound(SMILES:COC1=CC=C(C=C1)C(C2=[N]3[Co+2]4([N-]56)[N-]7C(C(C8=CC=C(C=C8)OC)=C3C=C2)=CC=C7C(C9=CC=C(C=C9)OC)=C%10C=CC%11=[N]4%10)=C5C=CC6=C%11C%12=CC=C(C=C%12)OC), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Li, Luqing; Li, Menghui; Cui, Qingqing; Liu, Ying; Chen, Yuyu; Wang, Yujie; Zhang, Zhengzhu; Chen, Quansheng; Ning, Jingming researched the compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II)( cas:28903-71-1 ).Electric Literature of C48H38CoN4O4.They published the article 《Rapid monitoring of black tea fermentation quality based on a solution-phase sensor array combined with UV-visible spectroscopy》 about this compound( cas:28903-71-1 ) in Food Chemistry. Keywords: black tea fermentation quality UV visible spectroscopy; solution phase sensor array; Black tea; Fermentation; Nanoporphyrin; Solution-phase sensor array; UV-visible spectroscopy. We’ll tell you more about this compound (cas:28903-71-1).

Rapid monitoring of fermentation quality has been the key to realizing the intelligent processing of black tea. In our study, mixing ratios, sensing array components and reaction times were optimized before an optimal solution phase colorimetric sensor array was constructed. The characteristic spectral information of the array was obtained by UV-visible spectroscopy and subsequently combined with machine learning algorithms to construct a black tea fermentation quality evaluation model. The competitive adaptive reweighting algorithms (CARS)-support vector machine model discriminated the black tea fermentation degree with 100% accuracy. For quantification of catechins and four theaflavins (TF, TFDG, TF-3-G, and TF-3′-G), the correlation coefficients of the CARS least square support vector machine model prediction set were 0.91, 0.86, 0.76, 0.72 and 0.79, resp. The results obtained within 2 min enabled accurate monitoring of the fermentation quality of black tea, which provides a new method and idea for intelligent black tea processing.

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Iodide – Wikipedia,
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Brief introduction of 28903-71-1

Compounds in my other articles are similar to this one(5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II))Reference of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II). The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Axial ligands tailoring the ORR activity of cobalt porphyrin. Author is Zhou, Yue; Xing, Yong-Fang; Wen, Jing; Ma, Hai-Bo; Wang, Feng-Bin; Xia, Xing-Hua.

In an effort to provide visualization and understanding to the electronic “”push effect”” of axial ligands on the catalytic activity of cobalt macrocyclic mols., we design a simple model system involving an [5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin]cobalt(II) (TMMPCo) monolayer axially-coordinated on thiol ligand modified Au electrode and explore the activity of the axial-ligand coordinated TMPPCo toward oxygen reduction reaction (ORR) in acidic medium. Three different ligands, with a decreasing order of coordinating ability as: 4-mercaptopyridine (MPy) > 4-aminothiolphenol (APT) > 4-mercaptobenzonitrile (MBN) are used and a maximum difference in ORR onset potential of 80 mV is observed between the MPy (highest onset potential) and MBN systems (lowest onset potential). The ORR activity of TMPPCo increases with the increase in binding strength of the axial ligand. A detailed mechanism study reveals that ORR on the three ligand coordinated TMPPCo systems shares the same 2-electron mechanism with H2O2 as the terminal product. Theor. calculation into the structure of the ligand coordinated cobalt porphyrins uncovers the variation in at. charge of the Co(II) center and altered frontier MO distribution among the three ligand systems. Both properties have great influence on the back-bonding formation between the Co(II) center and O2 mols., which has been suggested to be critical toward the O2 adsorption and subsequent activation process.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Can You Really Do Chemisty Experiments About 28903-71-1

Compounds in my other articles are similar to this one(5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II))Category: iodides-buliding-blocks, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 28903-71-1, is researched, SMILESS is COC1=CC=C(C=C1)C(C2=[N]3[Co+2]4([N-]56)[N-]7C(C(C8=CC=C(C=C8)OC)=C3C=C2)=CC=C7C(C9=CC=C(C=C9)OC)=C%10C=CC%11=[N]4%10)=C5C=CC6=C%11C%12=CC=C(C=C%12)OC, Molecular C48H38CoN4O4Preprint, ChemRxiv called Nitrite-Phenol-NO crosstalk: phenol oxidation and NO generation from nitrite at copper(II) sites, Author is Sakhaei, Zeinab; Kundu, Subrata; Bertke, Jeffery A.; Warren, Timothy H., the main research direction is nitric oxide generation phenol oxidation nitrite copper.Category: iodides-buliding-blocks.

Nitrite is involved in a plethora of biol. phenomena that includes tyrosine nitration associated with neurodegenerative disorders and gastric phenol metabolism Reaction of the β-diketiminato model complex [Cl2NNF6]Cu(κ2-O2N) (I) with phenols outlines the coupled generation of NO with phenol oxidation by nitrite at copper(II). Kinetic studies support nucleophilic attack of the hydroxyl group of phenols ArOH on the bound nitrite in [CuII](κ2-O2N) to give the copper(II) hydroxide [CuII]OH along with the O-nitrosated phenol ArONO that ultimately leads to the corresponding biphenol or o-nitrophenol. The especially electron-rich antioxidant α-tocopherol (vitamin E) quickly generates NO upon interaction with [CuII](κ2-O2N). X-ray anal. of the oxidation products of the α-tocopherol analog PMC reveal formation of an elusive O-quinone methide bound to [CuI], revealing two electron oxidation of PMC by [CuII](κ2-O2N). These studies illustrate anaerobic pathways that generate NO from nitrite at copper(II) sites that result in phenol oxidation

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

More research is needed about 28903-71-1

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 28903-71-1, is researched, SMILESS is COC1=CC=C(C=C1)C(C2=[N]3[Co+2]4([N-]56)[N-]7C(C(C8=CC=C(C=C8)OC)=C3C=C2)=CC=C7C(C9=CC=C(C=C9)OC)=C%10C=CC%11=[N]4%10)=C5C=CC6=C%11C%12=CC=C(C=C%12)OC, Molecular C48H38CoN4O4Journal, Journal of the Electrochemical Society called Pyrolyzed Co-Nx/C electrocatalysts supported on different carbon materials for oxygen reduction reaction in neutral solution, Author is Zhang, Lei; Ye, Daixin; Huang, Qiu-An; Zhao, Hongbin; Shao, Qinsi; Zhang, Jiujun, the main research direction is pyrolyzed cobalt porphine carbon support electrocatalyst oxygen reduction.Related Products of 28903-71-1.

In this work, a non-noble metal material, i.e., 5, 10, 15, 20-Tetrakis(4-methoxyphenyl)-21H, 23H-porphine cobalt(II) (CoTMPP), is chosen as the metal complex which adsorbs on three different carbon support materials, namely, black pearls 2000 (BP), ordered mesoporous carbon (MPC) and single layer graphene oxide (GO), to form CoTMPP/BP, CoTMPP/MPC, and CoTMPP/GO catalyst precursors, resp. These precursors are heat-treated at high temperatures to form Co-Nx/BP, Co-Nx/MPC, and Co-Nx/GO catalysts for ORR in neutral electrolyte solution, resp. Several characterization methods including XRD, SEM/TEM and XPS are employed. Electrochem. methods such as cyclic voltammetry (CV), rotating disk electrode (RDE) and rotating ring-disk electrode (RRDE) techniques are used to quant. measure the catalyzed ORR kinetic parameters. Effects of both carbon supports and heat-treatment temperature on the catalyst phys. properties and catalytic ORR activities were also studied. Regarding the catalytic ORR activity, the activity order was measured as: Co-Nx/BP > Co-Nx/MPC > Co-Nx/GO. The overall electron transfer number catalyzed by Co-Nx/BP is measured to be 4, while those by Co-Nx/MPC and Co-Nx/GO catalysts are 2-electron transfer pathways. Based on these measurements and our anal., an ORR mechanism is also proposed for facilitating further investigation and understanding.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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Reference of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II). The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Nitrite-Phenol-NO crosstalk: phenol oxidation and NO generation from nitrite at copper(II) sites. Author is Sakhaei, Zeinab; Kundu, Subrata; Bertke, Jeffery A.; Warren, Timothy H..

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Brief introduction of 28903-71-1

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Yang, Yuning; Li, Guijie; Mao, Xinbiao; She, Yuanbin published an article about the compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II)( cas:28903-71-1,SMILESS:COC1=CC=C(C=C1)C(C2=[N]3[Co+2]4([N-]56)[N-]7C(C(C8=CC=C(C=C8)OC)=C3C=C2)=CC=C7C(C9=CC=C(C=C9)OC)=C%10C=CC%11=[N]4%10)=C5C=CC6=C%11C%12=CC=C(C=C%12)OC ).HPLC of Formula: 28903-71-1. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:28903-71-1) through the article.

A solvent-free and environment-friendly process for the oxidation of 4-ethylnitrobenzene to 4-nitroacetophenone promoted by metalloporphyrins was developed in a pressure reactor using O2 as a clean oxidant. The activities and reaction selectivities of the metalloporphyrins could be significantly affected by their central metal ions as well as the nature and position of the substituted groups, which were systematically investigated by employing more than 60 metalloporphyrins. Generally, the Fe(III)- and Mn(II)-porphyrins exhibited high activities. Moreover, metalloporphyrins with electron-withdrawing substituents on the para-positions of the Ph rings showed activities in the order T(p-Br)PPM < T(p-Cl)PPM < T(p-F)PPM. The substituent position effect on the activities of T(o-Cl)PPM > T(m-Cl)PPM > T(p-Cl)PPM and T(o-OMe)PPM < T(m-OMe)PPM < T(p-OMe)PPM were observed Furthermore, selectivities over 90.0% and a TON of 5370 could be achieved for the desired ketone. Especially, the T(p-Cl)PPMn demonstrated a selectivity of up to 93.6% and a conversion of 51.9% with only 3.3% acid and no alc. observed, and the selectivity was nearly the same for a large-scale experiment (100 g). Compounds in my other articles are similar to this one(5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II))HPLC of Formula: 28903-71-1, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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Iodide – Wikipedia,
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Chemical Properties and Facts of 28903-71-1

Related Products of 28903-71-1. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Photocatalyst-controlled and visible light-enabled selective oxidation of pyridinium salts. Author is Peng, Xiang-Jun; He, Hai-Ping; Liu, Qian; She, Kun; Zhang, Bao-Qi; Wang, Heng-Shan; Tang, Hai-Tao; Pan, Ying-Ming.

This study proposed two different methods of photocatalytic-controlled and visible light-induced selective oxidation of pyridiniums with air as the terminal oxidant. The key to these transformations was to choose the appropriate light source and photocatalyst. Pyridiniums were successfully converted into pyrroles through oxygen-mediated cycloaddition, proton-coupled electron transfer (PCET), pyridine ring opening, and recyclization. The other route was that pyridiniums selectively form 4-carbonyl pyridines through free radical rearrangement/aerobic oxidation under the catalysis of cobalt (II).

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Extracurricular laboratory: Synthetic route of 28903-71-1

Reference of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II). Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Axial ligands tailoring the ORR activity of cobalt porphyrin. Author is Zhou, Yue; Xing, Yong-Fang; Wen, Jing; Ma, Hai-Bo; Wang, Feng-Bin; Xia, Xing-Hua.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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Compounds in my other articles are similar to this one(5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II))Name: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Name: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II). The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Electron-Transfer Ionization of Nanoparticles, Polymers, Porphyrins, and Fullerenes Using Synthetically Tunable α-Cyanophenylenevinylenes as UV MALDI-MS Matrices. Author is Ramirez-Pradilla, Juan S.; Blanco-Tirado, Cristian; Combariza, Marianny Y..

Electron-transfer ionization in matrix-assisted laser desorption/ionization (ET-MALDI) is widely used for the anal. of functional materials that are labile, unstable, and reactive in nature. However, conventional ET matrixes (e.g., trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene] malononitrile (DCTB)) still lack in performance due to cluster formation, reactivity with analytes, and vacuum instability. In this contribution, we report the use of α-cyanophenylenevinylene derivatives as UV MALDI matrixes for the anal., by ET ionization, of nanoparticles, polymers, porphyrins, and fullerenes. The synthetic versatility of the phenylenevinylene (PV) core allowed us to modulate physicochem. properties, fundamental for efficient formation of primary ions in the gas phase under MALDI conditions, such as planarity, ionization potentials, molar absorptivity, and laser thresholds. For instance, introduction of -CN groups in vinyl positions of the PV core induced structural disruption in planarity in the new α-CNPV derivatives, shifting their maximum molar absorptivity to UV wavelengths and increasing their ionization energy values above 8.0 eV. UV MALDI-relevant photophys. properties in solution and solid state are reported (λmax and ε355nm). LDI spectra of α-CNPVs exhibit predominant signals due to M+• and [M + H]+ species, whereas the standard matrix DCTB shows peaks associated with clusters and nondesirable products. The mass spectrometry (MS) performance of six α-CNPV derivatives was assessed for the ionization of a standard compound, with α-CNPV-CH3 and α-CNPV-OCH3 exhibiting better anal. figures of merit than those of a standard matrix (DCTB). These new matrixes display high vacuum stability (79%) for up to 240 min of residence in the ionization source, in contrast with DCTB with 13%. Vacuum stability is vital, particularly for applications such as high-throughput anal. and imaging MS. In addition, when a mixture of 20 analytes (PAHs, porphyrins, and triphenylamine dyes) ranging from m/z 300 to 1700 was analyzed via ET-MALDI, we observed analyte coverage of 90% with the α-CNPV-CH3 derivative, whereas DCTB afforded only 70%. Finally, α-CNPV-CH3 was tested and compared with DCTB, as ET-MALDI matrix for petroporphyrins, conjugated polymers, gold nanoparticles, and fullerene derivatives anal., outperforming in most cases the standard matrix.

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Extended knowledge of 28903-71-1

Compounds in my other articles are similar to this one(5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II))Product Details of 28903-71-1, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Product Details of 28903-71-1. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about On the Reduction of O2 on Cathode Surfaces of Co-Corrin and Co-Porphyrin: A Computational and Experimental Study on Their Relative Efficiencies in H2O/H2O2 Formation. Author is Huang, Wen-Fei; Chang, Sun-Tang; Huang, Hsin-Chih; Wang, Chen-Hao; Chen, Li-Chyong; Chen, Kuei-Hsien; Lin, M. C..

The mechanisms for O2 reduction and H2O/H2O2 formation on Co-corrin and Co-porphyrin cathode surfaces of the proton exchange membrane fuel cell (PEMFC) systems have been studied by hybrid Hartree-Fock/d. functional theory (B3LYP) calculations with the LANL2DZ basis set. The calculations show that the reduced Co-corrin with a single neg. charge (Co-corrin-) is more reactive than the neutral Co-corrin and the doubly charged Co-corrin2-. Both O2 and O adsorptions are most stable on Co-corrin-, rather than Co-corrin or Co-corrin2-. The potential energy profiles show that the decomposition of O2 on both Co-corrin and Co-corrin- can take place energetically favorably without thermal activation. The formation of H2O and H2O2 are predicted to occur by two sep. reaction paths: the HO path and the HOO path. The HO path with H2O as the predominant product on the reduced Co-corrin- surface, the energetically favored surface, under operational cathodic conditions, which is consistent with recent exptl. findings, wherein the PEMFCs with pyrolyzed vitamin B12 containing Co-corrin as catalysts loaded at the cathode, can deliver up to 14.5 A cm-3 at 0.8 V with IR compensation. A similar calculation performed for a Co-porphyrin system shows a significantly less efficient O2 reduction, consistent with the experiment results of the PEMFC power output studies.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com