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 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

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 29, 1984, Kamogawa, Hiroyoshi; Masui, Toshiaki; Amemiya, Suguru published an article.Electric Literature of 52243-87-5 The title of the article was Organic solid photochromism by photoreduction mechanism: viologen embedded in solid polar aprotic polymer matrix. And the article contained the following:

Reversible photocolor development of viologens embedded in poly(N-vinyl-2-pyrrolidone) (I) films, a typical polar aprotic solid matrix, was affected by the kinds of viologen cation as well as the paired anion. The color development in the corresponding low-mol.-weight solvents is connected closely to the solubility of viologens in these solvents; viologens are highly sensitive in the polar aprotic solvents in which they have poor solubilities, such as N-methyl-2-pyrrolidone and hexamethylphosphoric triamide. These facts confirm the color-development mechanism consisting of electron transfer to the photoexcited viologen cation from the paired anion in polar aprotic solid matrixes, such as I. 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 photochromism viologen aprotic polymer matrix, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Electric Literature of 52243-87-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On April 1, 2015, Yu, Jiancan; Cui, Yuanjing; Wu, Chuan-De; Yang, Yu; Chen, Banglin; Qian, Guodong published an article.COA of Formula: C21H13NO8 The title of the article was Two-Photon Responsive Metal-Organic Framework. And the article contained the following:

Two-photon processing presents a facile means to tailor the properties of materials in three-dimensions. A two-photon responsive metal-organic framework (MOF) has been realized through the incorporation of a photoactive linker into a MOF via a multivariate strategy. The resulting MOF exhibits a significant one-photon and two-photon excited fluorescence change in response to UV light and IR femtosecond laser, enabling spatial modulation of the fluorescence property of the MOF. It thus demonstrates the capacity of two-photon patterning and imaging inside the crystal, and the formation of three-dimensional two-photon excited fluorescent structure in a high resolution The experimental process involved the reaction of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid(cas: 1431292-15-7).COA of Formula: C21H13NO8

The Article related to two photon fluorescence zinc pyridinediyldiisophthalato mof crystal structure, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.COA of Formula: C21H13NO8

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 4, 2019, Li, Hanning; Yang, Yang; He, Cheng; Zeng, Le; Duan, Chunying published an article.Application of 1431292-15-7 The title of the article was Mixed-Ligand Metal-Organic Framework for Two-Photon Responsive Photocatalytic C-N and C-C Coupling Reactions. And the article contained the following:

A multiple-photon photochem. process breaks the existing energy limitation of visible-light photocatalysis. Through careful incorporation of both bis(3,5-dicarboxyphenyl)pyridine and bis(3,5-dicarboxyphenyl)methylpyridinium ligands into a single metal-organic framework (MOF), we report herein photocatalytic C-N and C-C oxidative coupling reactions that evidenced the direct two-photon response process. Time-dependent luminescence-decay studies demonstrated that the framework reached the same excited state by a two-photon absorption process as that reached via a single-photon absorption process, and the excited state could activate substrates even under NIR-light irradiation Under 660 nm light-emitting diode (LED) irradiation, both the photooxidative C-N coupling reaction of benzylamine to form benzylidene-1-phenylmethanamine and the C-C coupling reaction between nitromethane and N-phenyltetrahydroisoquinoline were accelerated directly in a heterogeneous manner. Control experiments suggested that minimal byproducts were formed under the NIR-light irradiation compared to those of the UV light catalytic reactions. Importantly, photon intensity-dependent studies exhibited a nonlinear correlation between catalytic efficiency of multivariate MOFs (MTV-MOFs) and photon power intensity, verifying the two-photon responsive nature, which indicated that metal-organic framework with high d. and ordered photoactive motifs could enhance the two-photon absorption ability, thereby improving photocatalytic efficiency even under LED irradiation The experimental process involved the reaction of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid(cas: 1431292-15-7).Application of 1431292-15-7

The Article related to ligand metal organic framework photon responsive photocatalysis, coupling reaction, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Application of 1431292-15-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Tahara, Hironobu; Yonemura, Hiroaki; Harada, Satoko; Nakashima, Akio; Yamada, Sunao published an article in 2012, the title of the article was Photoinduced electron-transfer reactions and magnetic field effects on the decay rates of a photogenerated biradical from zinc porphyrin-viologen linked compounds in an ionic liquid.COA of Formula: C16H22Br2N2 And the article contains the following content:

Fluorescence and transient absorption spectra of zinc-porphyrin (ZnP)-viologen linked compounds with various methylene groups indicate that intramol. electron-transfer from the singlet or triplet excited state of ZnP to viologen occurred and a biradical was generated in the ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate) at various temperatures (283-343 K). The decay rate constants of the biradical decreased in 0-0.2∼0.5 T and became constant in 0.2∼0.5-1 T. Unique effects of temperature and methylene chain length on electron-transfer and magnetic field effects were observed and are probably due to the properties of the ionic liquid as compared with benzonitrile. 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 photoinduced intramol electron transfer zinc porphyrin viologen dyad kinetics, magnetic field zinc porphyrin viologen dyad photochem ionic liquid, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.COA of Formula: C16H22Br2N2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem