Category: 52243-87-5

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 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 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 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

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 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

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 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 December 15, 1990, Chen, Tien Teh; Fitch, Robert M. published an article.Computed Properties of 52243-87-5 The title of the article was Visible light-induced hydrogen formation from water by various 1,1′-dialkyl-4,4′-bipyridinium salts (viologens). And the article contained the following:

Visible-light-induced H generation from water by 1,1′-dialkyl-4,4′-bipyridinium compounds (viologen dyes) as electron transfer agents was investigated. Among the viologens, pentyl viologen was most efficient. The relative rate of H formation was highest when the redox potential of the viologen was near -0.65 V (vs. SCE) at pH 4.5. There was a relation between the rate of H formation and the hydrophobicity of the viologen dyes because of the heterogeneous nature of the reaction. 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 water photolysis hydrogen formation viologen, solar energy hydrogen formation viologen, Electrochemical, Radiational, and Thermal Energy Technology: Energy Sources and other aspects.Computed Properties of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 28, 1995, Liang, Zhaoxi; Wang, Xiaoyun; Yi, He published an article.Electric Literature of 52243-87-5 The title of the article was Electroreduction kinetics of alkyl polyviologens studied by in situ spectroscopy. And the article contained the following:

The electroreduction kinetics of several alkyl polyviologens (I), such as polypropyl viologen, polybutyl viologen, polyhexyl viologen as well as their resp. low mol. analogs (II) and a bisviologen were studied by in situ spectroscopy. The reaction order (α) and rate constant (κ) of the 1st electroreduction were calculated The effect of alkyl chain length (n) is obvious for II, κ values decrease in the order: PrV>BV>HxV. κ Values of I are lower than those of II and depend slightly on n. These facts may be attributed to the diffusion-controlled nature of the electroreduction process. The influences of viologen concentration, the supporting electrolyte and the pH value also were studied. In general, the memory time of I is longer than those of II. The experimental process involved the reaction of 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide(cas: 52243-87-5).Electric Literature of 52243-87-5

The Article related to electroreduction kinetics alkyl polyviologen spectroscopy, Electrochemistry: Electrodes, Electrode Reactions, and Electrode Potentials and other aspects.Electric Literature of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem