Tag: 400-500

On August 1, 2012, Wang, Wei; Yu, Wei; Yan, Yukun; Li, Jing; Li, Qiuyue published a patent.Computed Properties of 52243-87-5 The title of the patent was Organic micro-/nano-material of 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt/viologen derivative charge transfer composite and preparation method thereof. And the patent contained the following:

The organic micro-/nano-material consists of organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt and organic electron acceptor viologen derivative The organic micro-/nano-material is prepared by: dissolving organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt and organic electron acceptor viologen derivative in good solvent, adding poor solvent; constant temperature aging the solution, slowly volatilizing the good solvent, obtaining organic micro-/nano-material single crystal. The organic micro-/nano-material is also prepared by: dissolving organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt in solvent I, slowly adding buffer solution, enriching the organic electron donor in the solvent I; dissolving the electron acceptor viologen derivative in solvent II, slowly adding the solution to the organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt solution, enriching the organic electron donor 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt in the solvent II, standing and aging, obtaining organic micro-/nano-material single crystal at the solvent interface. The invention has the advantages of easy raw material resource, simple preparation process, good crystallization property; and has wide application prospects in organic semiconductor or organic conductor etc. fields. 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 organic micro material pyrenetetrasulfonic acid tetrasodium salt viologen, crystal mol structure viologen pyrenetetrasulfonate sodium salt, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Luminescence and other aspects.Computed Properties of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 5, 1988, Shosenji, Hideto; Nakano, Yasuhiro; Yamada, Kimiho published an article.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide The title of the article was Catalytic reduction of diphenylacetylene by zinc over palladium-carbon using viologens as electron mediators. And the article contained the following:

PhCCPh was reduced over Pd/C in methanol-water in presence of zinc using N,N’-dialkyl-4,4′-bipyridinium ions (viologens) as mediators to give cis-stilbene as the major product and bibenzyl as the minor one. The reaction involved direct contact of zinc with the catalyst and electron transfer from zinc to Pd via the viologen. The Pd- reduced a proton from H2O to generate H. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

The Article related to reduction diphenylacetylene zinc viologen palladium, Physical Organic Chemistry: Oxidation-Reduction, Including Dehydrogenation and Hydrogenolysis and other aspects.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Kamogawa, Hiroyoshi; Amemiya, Suguru published an article in 1984, the title of the article was Synthesis of novel organic functional substances. II. Spontaneous generation of viologen radical cations in polar aprotic solvents.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide And the article contains the following content:

Viologens, when dissolved in polar aprotic solvents (such as N-methyl-2-pyrrolidone or HMPA) under deaerated conditions, gave a blue color (λmax = 608-609nm) indicating the spontaneous generation of the viologen radical cation. Electron transfer from the counter anion of viologen to the viologen cation was proposed. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

The Article related to viologen electron transfer solvent effect, Physical Organic Chemistry: Oxidation-Reduction, Including Dehydrogenation and Hydrogenolysis and other aspects.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On May 20, 2019, Kim, Jae Hyeon; Kim, Gi Han; Kim, Chung Hyo published a patent.Name: 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide The title of the patent was Light control device and transparent display device including the same. And the patent contained the following:

The present invention relates to a light control device capable of realizing a fast response speed, and a transparent display device including the same. The light control device includes a first substrate and a second substrate facing each other, a first barrier rib and a second barrier rib that maintain a gap between the first substrate and the second substrate, and disposed between the first substrate and the second substrate, a first electrode disposed on a side surface of the first bulk head and facing the second bulkhead; a second electrode disposed on a side surface of the second bulk head facing the first bulk head and a light control cell changing the light transmittance according to the voltage applied to the first electrode and the second electrode including electrochromic materials, and disposed between the first electrode and the second electrode. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Name: 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

The Article related to light control transparent display device, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Other and other aspects.Name: 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On June 30, 1983, Hsieh, Chun Chin; Wang, Ching Bore; Lin, Lung Ching published an article.Formula: C16H22Br2N2 The title of the article was Mass spectral study on 1,1′-dialkyl-4,4′-bipyridinium bromides. And the article contained the following:

The electron-impact mass spectra of eight title salts (I; R, R1 = alkyl; X = halo) and 1-hexadecylpyridinium bromide were studied. An ion peak of M+• [M2+(X-)2 = I] was detected by the one-electron reduction of M2+ ion. When the alkyl was >C5, a characteristic peak of C4H8Br+ was found from the bromide complexes. A peak corresponding to (M-2)+•, representing loss of HX from MX2, was also found. A base peak corresponding to (M-R-R1)+• was observed with smaller alkyl groups. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Formula: C16H22Br2N2

The Article related to mass spectra dialylbipyridinium dihalide, alkylbipyridinium halide mass spectra, bipyridinium halide mass spectra, Physical Organic Chemistry: Degradation Reactions, Including Mass Spectral Fragmentation and other aspects.Formula: C16H22Br2N2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On September 5, 1980, Kamogawa, Hiroyoshi; Masui, Toshiaki; Nanasawa, Masato published an article.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide The title of the article was Photochemically induced reduction of viologens in solid polar aprotic polymer matrices. And the article contained the following:

Photochem. induced reversible reduction of viologens in solid polar aprotic polymer matrixes proceeds much more efficiently than in protic ones. The effects of the N-substituent and anions were discussed. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

The Article related to photochem reduction viologen polymer matrix, substituent effect viologen photoreduction, Physical Organic Chemistry: Oxidation-Reduction Reactions (Including Hydrogenation) and other aspects.Reference of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 29, 1984, Xiao, Xu Rui; Wang, Ching Bore; Tien, H. Ti published an article.COA of Formula: C16H22Br2N2 The title of the article was Photoreduction of alkyl viologens by zinc tetraphenylporphyrin in organic solvent-water systems. And the article contained the following:

Light-induced redox reactions between Zn meso-tetraphenylporphyrin (ZnTPP) and alkyl viologens (CnV2+) in organic solvent-surfactant-H2O solutions were studied as functions of the organic-solvent content of the solutions, the surfactant charge, and the alkyl viologen hydrophobicity. The best system was an oil-in-water emulsion containing 5 × 10-5 M ZnTPP and 10-3M C10V2+ stabilized by n-C16H33NMe3+ X- (X = Br, Cl) and 6% DMF, AcNMe2 or DMSO in H2O. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).COA of Formula: C16H22Br2N2

The Article related to photoreduction alkyl viologen zinc tetraphenylporphyrin, reduction photochem alkyl viologen, Physical Organic Chemistry: Oxidation-Reduction, Including Dehydrogenation and Hydrogenolysis and other aspects.COA of Formula: C16H22Br2N2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On December 15, 2017, Wei, Na; Zhang, Yue; Liu, Lin; Han, Zheng-Bo; Yuan, Da-Qiang published an article.Recommanded Product: 1431292-15-7 The title of the article was Pentanuclear Yb(III) cluster-based metal-organic frameworks as heterogeneous catalysts for CO2 conversion. And the article contained the following:

Two porous metal-organic frameworks (MOFs) incorporating pentanuclear Yb(III) clusters and pyridyl-supported tetracarboxylates or pyridyl carboxylic acid-supported tetracarboxylates, Yb-DDPY and Yb-DDIA, are presented, in which the pentanuclear Yb(III) cluster shows uncommon trigonal bipyramidal geometry. Furthermore, the pentanuclear Yb(III) clusters are extended by tetracarboxylates to form a 3D porous framework with uniform M12L8-cages constructed by 12 pentanuclear Yb(III) clusters and 8 tetracarboxylates with the size of ∼20 Å × 17 Å. Their highly CO2 uptake capacity and the existence of Lewis acidic sites make these MOFs promising catalysts for the chem. conversion of CO2. These MOFs demonstrate good catalytic activities and recyclability in the cycloaddition of CO2 and epoxides at 60° under 1.0 MPa pressure or at room temperature and atm. pressure. In addition, the synergistic effect of the Bronsted acidic -COOH groups and the Lewis acidic Yb(III) sites makes Yb-DDIA exhibit higher catalytic activity towards the cycloaddition of CO2 and epoxides. The experimental process involved the reaction of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid(cas: 1431292-15-7).Recommanded Product: 1431292-15-7

The Article related to pentanuclear ytterbium metal organic framework catalyst carbon dioxide cycloaddition, carbon dioxide epoxide cycloaddition catalyst cyclic carbonate, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Recommanded Product: 1431292-15-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On November 26, 2018, Kim, Jae Hyeon; Kim, Gi Han; Kim, Chung Hyo published a patent.Related Products of 52243-87-5 The title of the patent was Optical control device and transparent display device including the same with improved light transmittance. And the patent contained the following:

An optical control device and transparent display device including the same having improved light transmittance and quality is provided. The optical control device comprises a first and second substrate facing each other, a first and a second partition disposed between both the substrate, both the partition holds the gap between the two substrates, first electrode disposed on a side surface of the first partition facing the second partition, second electrode disposed on a side surface of the second partition facing the first partition, light control cell disposed between the first and the second electrode, and a light control cell including a light transmissive variable material that changes light transmittance according to a voltage applied to the first and second electrode. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Related Products of 52243-87-5

The Article related to optical control transparent display device, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Spectrometers and Optical Apparatus and other aspects.Related Products of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 31, 1994, Satoh, Hideharu; Ohno, Hiroyuki; Tokuda, Koichi; Ohsaka, Takeo published an article.Quality Control of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide The title of the article was A study on diffusional behavior of propyl viologen in poly(ethylene oxide) polymer solvents based on a combined use of steady-state cyclic voltammetry and potential-step chronoamperometry. And the article contained the following:

The diffusion coefficient (DPV2+) and the concentration (CaPV2+) of the actually electroactive PV2+ in the poly(ethylene oxide) (PEO, average mol. weight: 400) media containing 0.1M LiClO4 and various concentrations of propylviologen dibromide (PVBr2) could be sep. estimated without previous knowledge of either, based on a combined use of steady-state cyclic voltammetry at carbon fiber electrodes (diameter: 9 μm) and potential-step chronoamperometry at glassy carbon electrodes (diameter: 1 mm) as a function of PVBr2 concentration (CPV2+ = 2-20mM) and temperature (10-60°). Both CaPV2+ and DPV2+ significantly varied with CPV2+. CPV2+ values were smaller than CPV2+, indicating that all of the dissolved PVBr2 are not actually electroactive. DPV2+ decreased with increasing CPV2+ (and CaPV2+), and the charge transport in the PEO matrix thus occurs not via the electron-hopping process between PV2+ and PV+ (the monocation state of PV2+), but via the phys. diffusion of PV2+. Further, it became apparent that at CPV2+ > 5mM the temperature dependence of DPV2+ is not the Arrhenius type and follows the VTF equation, i.e., PV2+ ions are transported along with the segmental motion of the PEO chains. Based on the DSC measurements of the PEO-LiClO4 (0.1M)-PVBr2 complexes, their glass transition temperatures decrease with increasing CPV2+, suggesting that PVBr2 function as a plasticizer. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Quality Control of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

The Article related to propylviologen diffusion peo, redox electrochem propylviologen peo lithium perchlorate, Electrochemistry: Electrodes, Electrode Reactions, and Electrode Potentials and other aspects.Quality Control of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem