Day: November 2, 2022

Chesnokova, Alexandra N.; Lebedeva, Oksana V.; Pozhidaev, Yury N.; Ivanov, Nikolay A.; Rzhechitskii, Alexander E. published an article in 2014, the title of the article was Synthesis and properties of composite membranes for polymer electrolyte membrane fuel cells.Application of 636-73-7 And the article contains the following content:

The paper is devoted to the sol-gel synthesis of proton conductive organic-silicon composite membranes based on tetra-Et orthosilicate (TEOS) and copolymers of 2-methyl-5-vinylpyridine and vinyl chloride (MVP-VC), 2-methyl-5-vinylpyridine and vinyl acetate (MVP-VA), copolymers of ethylene glycol vinyl glycidyl ether and styrene (KS-1 and KS-2), and nitrogen-containing heteroaromatic derivatives of sulfonic acids: 2-phenyl-5-benzimidazolsulfonic acid (PBISA) and pyridine-3-sulfonic acid (PSA). Properties of synthesized membranes, such as proton conductivity, activation energy, ion exchange capacity, dimensional stability have been investigated. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Application of 636-73-7

The Article related to polymer electrolyte composite membrane fuel cell property synthesis, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Application of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On December 15, 2018, Han, Fei; Tu, Zeyi; Wan, Zhongquan; Luo, Junsheng; Xia, Jianxing; Hao, Guimin; Yi, Yuanping; Wang, Ruilin; Jia, Chunyang published an article.Reference of Pyridine-3-sulfonic acid The title of the article was Effect of functional group position change of pyridinesulfonic acid as interface-modified layer on perovskite solar cell. And the article contained the following:

There are fewer researches on the effect of functional group position change on device performance for highly efficient perovskite solar cell. In this work, we take pyridinesulfonic acid as an example, and study the effect of the isomeride: 2- and 3-pyridinesulfonic acid self-assembled monolayer on device performance for highly efficient perovskite solar cell. The efficiency of control device is 14.65% (Hysteresis Index = 0.31) under illumination of a simulated sunlight (AM 1.5G, 100 mW cm-2). Through use of the 3-pyridinesulfonic acid self-assembled monolayer, the device exhibits striking improvements to reach the efficiency of 16.88% (Hysteresis Index = 0.02), which constitutes an enhancement compared to those of 2-pyridinesulfonic acid self-assembled monolayer modified device (16.54%, Hysteresis Index = 0.02). The enhanced photovoltaic performances can be attributed to the larger perovskite grain sizes, and easier passivation of electron transporting layer/perovskite interface, which promote the charge separation, transport and collection. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Reference of Pyridine-3-sulfonic acid

The Article related to perovskite solar cell self assembled monolayer isomeride passivation, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Reference of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 6, 2020, Liu, Shan-Shan; Han, Zhen; Yang, Jin-Sen; Huang, Sheng-Zheng; Dong, Xi-Yan; Zang, Shuang-Quan published an article.Electric Literature of 636-73-7 The title of the article was Sulfonic Groups Lined along Channels of Metal-Organic Frameworks (MOFs) for Super-Proton Conductor. And the article contained the following:

Designing high-performance proton-conducting metal-organic frameworks simultaneously having highly hydrothermal stability and a high-d. proton carrier remains a great challenge. Fe-MIL-88B is a classic metal-organic framework (MOF) with a large-size one-dimensional (1D) channel lined with a high-d. uncoordinated metal atom for postfunctionalization; however this MOF cannot act as a proton conductor due to the weak hydrothermal stability. Here, we prepared an ultrastable isostructure Cr-MIL-88B, which is subsequently functionalized by anchoring 3-pyridinesulfonic acid and 2-(4-pyridyl) ethanesulfonic acid on the naked Cr atoms exposed on the surface of the host-framework, producing two new MOFs, i.e. Cr-MIL-88B-pyridine sulfonic acid (abbreviated as Cr-MIL-88B-PSA) and Cr-MIL-88B-pyridine ethanesulfonic acid (abbreviated as Cr-MIL-88B-PESA). Thus, Cr atoms on the host framework were modified by functional sulfonic groups, which stick out toward the center of the channel forming ordered high-d. sulfonic groups as proton donors along the open channel and achieving the highest proton conductivity of 4.50 × 10-2 S cm-1 for Cr-MIL-88B-PESA and 1.58 × 10-1 S cm-1 for Cr-MIL-88B-PSA, surpassing that of the Nafion membrane. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Electric Literature of 636-73-7

The Article related to metal organic framework proton conductor porous sulfonic group chromium, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Electric Literature of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 4, 2005, Yamada, Masanori; Honma, Itaru published an article.Formula: C5H5NO3S The title of the article was Proton conductivity of zwitterionic-type molecular solids under intermediate temperature and anhydrous conditions. And the article contained the following:

Anhydrous proton conducting material for polymer electrolyte membrane fuel cell (PEFC) was prepared by the mixing of zwitterionic-type mol. solid 3-pyridinesulfonic acid (PS) and organic acid methylenediphosphonic acid (MP). As a result, PS mol., which has a sulfonic acid and a pyridine group in its structure, showed the proton conductivity of 4 × 10-5 S cm-1 at 160°C under anhydrous condition. Surprisingly, by the mixing of MP to PS material, the PS-MP composite material exhibited a conductivity of 2 × 10-3 S cm-1. Also, the conductivity of PS-MP composite material did not decrease under the heating at 160° for 50 h. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Formula: C5H5NO3S

The Article related to proton conductivity sulfonic phosphonic zwitterionic solid electrolyte fuel cell, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Formula: C5H5NO3S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Dou, Chuandong; Long, Xiaojing; Ding, Zicheng; Xie, Zhiyuan; Liu, Jun; Wang, Lixiang published an article in 2016, the title of the article was An Electron-Deficient Building Block Based on the B<-N Unit: An Electron Acceptor for All-Polymer Solar Cells.Name: [2,2′-Bipyridine]-3,3′-diamine And the article contains the following content:

A double B<-N bridged bipyridyl (BNBP) is a novel electron-deficient building block for polymer electron acceptors in all-polymer solar cells. The B<-N bridging units endow BNBP with fixed planar configuration and low-lying LUMO/HOMO energy levels. As a result, the polymer based on BNBP units (P-BNBP-T) exhibits high electron mobility, low-lying LUMO/HOMO energy levels, and strong absorbance in the visible region, which is desirable for polymer electron acceptors. Preliminary all-polymer solar cell (all-PSC) devices with P-BNBP-T as the electron acceptor and PTB7 as the electron donor exhibit a power conversion efficiency (PCE) of 3.38 %, which is among the highest values of all-PSCs with PTB7 as the electron donor. The experimental process involved the reaction of [2,2'-Bipyridine]-3,3'-diamine(cas: 75449-26-2).Name: [2,2′-Bipyridine]-3,3′-diamine

The Article related to polymer solar cell electron acceptor boron nitrogen, b-n coordination, boron, electron acceptor, polymers, solar cells, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Name: [2,2′-Bipyridine]-3,3′-diamine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On September 1, 2009, Yang, Limin; Zhao, Guozhong; Li, Weihong; Liu, Yufeng; Shi, Xiaoxi; Jia, Xinfeng; Zhao, Kui; Lu, Xiangyang; Xu, Yizhuang; Xie, Datao; Wu, Jinguang; Chen, Jia’er published an article.Safety of Pyridine-3-sulfonic acid The title of the article was Low-frequency vibrational modes of DL-homocysteic acid and related compounds. And the article contained the following:

Several polycrystalline mols. with sulfonate groups and some of their metal complexes, including DL-homocysteic acid (DLH) and its Sr- and Cu-complexes, pyridine-3-sulfonic acid and its Co- and Ni-complexes, sulfanilic acid and -cysteic acid were studied using THz time-domain methods at room temperature The results of THz absorption spectra show that the mols. have characteristic bands at 0.2-2.7 THz (6-90 cm-1). THz technique can be used to distinguish different mols. with sulfonate groups and to determine the bonding of metal ions and the changes of H bond networks. In the THz region DLH has three bands: 1.61, 1.93 and 2.02 THz; and 0.85, 1.23 and 1.73 THz for Sr-DLH complex, 1.94 THz for Cu-DLH complex, resp. The absorption bands of pyridine-3-sulfonic acid are located at 0.81, 1.66 and 2.34 THz; the bands at 0.96, 1.70 and 2.38 THz for its Co-complex, 0.76, 1.26 and 1.87 THz for its Ni-complex. Sulfanilic acid has three bands: 0.97, 1.46 and 2.05 THz; and the absorption bands of -cysteic acid are at 0.82, 1.62, 1.87 and 2.07 THz, resp. The THz absorption spectra after complexation are different from the ligands, which indicate the bonding of metal ions and the changes of H bond networks. M-O and other vibrations appear in the FIR region for those metal-ligand complexes. The bands in the THz region were assigned to the rocking, torsion, rotation, wagging and other modes of different groups in the mols. Preliminary assignments of the bands were carried out using Gaussian program calculation The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Safety of Pyridine-3-sulfonic acid

The Article related to frequency vibrational mode homocysteic compound, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Vibrational and Rotational Spectroscopy and other aspects.Safety of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 30, 2006, Panicker, C. Yohannan; Varghese, Hema Tresa; Philip, Daizy; Nogueira, Helena I. S. published an article.Computed Properties of 636-73-7 The title of the article was FT-IR, FT-Raman and SERS spectra of pyridine-3-sulfonic acid. And the article contained the following:

FTIR and FT-Raman spectra of pyridine-3-sulfonic acid are recorded and analyzed. Surface enhanced Raman scattering (SERS) spectrum is recorded in a Ag colloid. The bands due to υCH, υSO are enhanced in the SERS spectrum. A likely perpendicular orientation’ of the mol. on the Ag surface is suggested. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Computed Properties of 636-73-7

The Article related to ft ir raman sers spectra pyridine sulfonic acid, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Vibrational and Rotational Spectroscopy and other aspects.Computed Properties of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On July 15, 2004, Boys, Mark L.; Schretzman, Lori A.; Tollefson, Michael B.; Chandrakumar, Nizal S.; Khanna, Ish K.; Nguyen, Maria; Downs, Victoria; Mohler, Scott B.; Gesicki, Glen J.; Penning, Thomas D.; Chen, Barbara B.; Wang, Yaping; Khilevich, Albert; Desai, Bipinchandra N.; Yu, Yi; Wendt, John A.; Stenmark, Heather; Wu, Lisa; Huff, Renee M.; Nagarajan, Srinivasan R.; Devadas, Balekudru; Lu, Hwang-fun; Russell, Mark; Spangler, Dale P.; Parikh, Mihir D.; Clare, Michael published a patent.COA of Formula: C8H9BrN2O2 The title of the patent was Heteroarylalkanoic acids as integrin receptor antagonists. And the patent contained the following:

The present invention relates to pharmaceutical compositions comprising compounds I [A = (un)saturated and/or (un)substituted 4-8 membered monocyclic or 7-12 membered bicyclic ring, containing 1 to 5 heteroatoms selected from the group consisting of O, N or S; ring A may further contain a carboxamide, sulfone, sulfonamide, or an acyl group; A1 = (un)saturated and/or (un)substituted 5-9 membered monocyclic or 8-14 membered polycyclic heterocycle containing at least one N; or A1 = substituted urea, iminourea or thiourea alicyclic or cyclic analog; Z1 = CH2, CH2O, O, NH, CO, S, SO, CHOH, SO2; Z2 = (un)substituted 1-5 carbon linker optionally containing one or more heteroatoms; alternatively Z1-Z2 may contain a carboxamide, sulfone, sulfonamide, alkenyl, acyl group, or aryl or heteroaryl ring; X = CO, SO2, S, O, substituted amine, substituted CH; Y = CO, SO2, substituted amine, etc.; Y5 = C or N; Y3 and Y4 independently = H, halo, (un)substituted-alkyl, -aryl, -alkene, etc.; or Y3 and Y4 together form a (un)saturated and/or (un)substituted 3-8 membered monocyclic or a 7-11 membered bicyclic ring optionally containing heteroatoms; or X and Y3 form a 3-7 membered monocyclic ring optionally containing heteroatoms; Rb = OH, alkoxy, arylamine, etc.], or a pharmaceutically acceptable salt thereof, methods of selectively inhibiting or antagonizing the ανβ3 and/or the ανβ5 integrin without significantly inhibiting the ανβ6 integrin, and methods to prepare I. Thus, e.g., II was prepared in four steps with oxadiazole ring forming via cyclization reaction of amide oxime III with cyclic anhydride IV (preparation given). I antagonize αvβ3 integrin with an IC50 values ranging from 0.1 nM to 100 μM in the 293-cell assay. Similarly, I also antagonized αvβ5 integrin with an IC50 values of < 50 μM in the cell adhesion assay. The experimental process involved the reaction of 3-((6-Bromopyridin-2-yl)amino)propanoic acid(cas: 68638-67-5).COA of Formula: C8H9BrN2O2

The Article related to butanoic acid heteroaryl derivative preparation integrin receptor antagonist, alkanoic acid heteroaryl derivative preparation integrin receptor antagonist, Aliphatic Compounds: Carboxylic Acids and Peroxycarboxylic Acids and Their Sulfur-Containing Analogs and Salts and other aspects.COA of Formula: C8H9BrN2O2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Wen; Xiaoming, Long; Li, Manfu published an article in 1985, the title of the article was Synthesis of viologen compounds.Computed Properties of 52243-87-5 And the article contains the following content:

A series of viologen and polyviologen compounds were prepared by Menshutkin reaction of 4,4′-bipyridine with related alkyl halide. The kinetics of synthesis of polyviologens was studied. The polymerization behaved as step polymerization and proceeded via a second-order reaction in the early period. Both conversion and intrinsic viscosity increased with temperature The polarity of solvent had remarkable influence on the mol. weight of polymer in the precipitation polymerization The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Computed Properties of 52243-87-5

The Article related to menshutkin reaction bipyridine alkyl halide, kinetics polymerization viologen, solvent effect polyviologen preparation, temperature effect polyviologen preparation, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Computed Properties of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 2, 2012, Austin, Joel Francis; Sharma, Lisa S.; Balog, James Aaron; Huang, Audris; Velaparthi, Upender; Darne, Chetan Padmakar; Saulnier, Mark George published a patent.Category: pyridine-derivatives The title of the patent was Preparation of sulfonamide compounds useful as CYP17 inhibitors. And the patent contained the following:

The title compounds I [ring A = II-IV (wherein X, Y and Q = N and/or CR6; U = N, NR8, and/or CH; W and Z = N and/or C; with the provisos); R1 = H, halo, OH, etc.; R2 = H, halo, alkyl; R3 = H, halo, alkyl, alkoxy; R4 = H, halo, alkyl, alkoxy, haloalkoxy; R5 = (un)substituted alkyl, alkenyl, cycloalkyl, etc.; R6 = H, halo, CN, etc.; R7 = halo, CN, haloalkyl, etc.; R8 = H, alkyl, SO2Ph], useful in the treatment of conditions related to CYP17 enzyme, such as cancer, were prepared E.g., a multi-step synthesis of V, starting from 3-bromo-4-methylpyridine, was described. Exemplified compounds I showed human CYP17 SPA IC50 values of less than 1 μM (specific data given for representative compounds I). Pharmaceutical compositions comprising compound I were disclosed. The experimental process involved the reaction of 3,5-Dibromo-4-methoxypyridine(cas: 25813-24-5).Category: pyridine-derivatives

The Article related to sulfonamide preparation cytochrome p450 monooxygenase cyp17 inhibitor antitumor, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Sulfenic, Sulfinic, and Sulfonic Acids and Derivatives and other aspects.Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem