Category: pyridine-derivatives

On October 15, 2021, Wang, Qiang; Wang, Yujia; Chen, Lin; Sun, Xuzhuo; Li, Bo; He, Shuanglin; Li, Jun; Wang, Ning published an article.Formula: C5H5NO3S The title of the article was Introducing electrostatic interaction into Ru(bda) complexes for promoting water-oxidation catalysis. And the article contained the following:

Ru(bda) (H2bda = 2,2′-bipyridine-6,6′-dicarboxylic acid) complex is a kind of well-known water oxidation catalyst, which goes through the bimol. I2M mechanism with an inter-catalyst O-O coupling step. Recently, we developed two facile strategies to accelerate O-O coupling via introducing the electrostatic interaction into Ru(bda)-catalyzed systems. In this work, a series of Ru(bda) complexes with different charged groups on different positions were synthesized to demonstrate the general applicability of these design strategies. It found these catalytic systems with attractive electrostatic interaction display much better activity, and the position of the charged substituents also has a significant influence on the catalytic activity. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Formula: C5H5NO3S

The Article related to ruthenium bipyridine complex electrostatic interaction water oxidation, Placeholder for records without volume info and other aspects.Formula: C5H5NO3S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Bin; Wen, Hui-Min; Wang, Hailong; Wu, Hui; Yildirim, Taner; Zhou, Wei; Chen, Banglin published an article in 2015, the title of the article was Porous metal-organic frameworks with Lewis basic nitrogen sites for high-capacity methane storage.Recommanded Product: 5,5′-(Pyridine-2,5-diyl)diisophthalic acid And the article contains the following content:

The use of porous materials to store/deliver natural gas (mostly methane) in vehicles requires large amounts of methane being stored per unit volume In this work, we report several porous metal-organic frameworks (MOFs) with NOTT-101 type structures, containing Lewis basic nitrogen sites through the incorporation of pyridine, pyridazine, and pyrimidine groups into the organic linkers. They exhibit significantly higher total volumetric methane storage capacities (∼249-257 cm3 (STP) cm-3 at room temperature (RT) and 65 bar) than NOTT-101a (here the MOF abbreviation with “a” at the end represents the fully activated MOF). The most significant enhancement was observed on UTSA-76a with functional pyrimidine groups (237 cm3 (STP) cm-3 in NOTT-101a vs. 257 cm3 (STP) cm-3 in UTSA-76a). Several multivariate (MTV) MOFs constructed from two types of organic linkers (pyrimidine-functionalized and unfunctionalized) also show systematically improved methane storage capacities with increasing percentage of functionalized organic linkers. The immobilized functional groups have nearly no effect on the methane uptakes at 5 bar but significantly improve the methane storage capacities at 65 bar, so the reported MOFs exhibit excellent methane storage working capacities of ∼188-197 cm3 (STP) cm-3. The experimental process involved the reaction of 5,5′-(Pyridine-2,5-diyl)diisophthalic acid(cas: 1431292-15-7).Recommanded Product: 5,5′-(Pyridine-2,5-diyl)diisophthalic acid

The Article related to lewis nitrogen capacity methane storage porous metal organic framework, Placeholder for records without volume info and other aspects.Recommanded Product: 5,5′-(Pyridine-2,5-diyl)diisophthalic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On February 28, 2019, Steinlechner, Christoph; Spannenberg, Anke; Junge, Henrik; Beller, Matthias published an article.Related Products of 109660-12-0 The title of the article was Tetracarbonyl[4,4-dimethyl-2-(pyridin-2-yl)-2-oxazoline-κ2N,N′]molybdenum(0). And the article contained the following:

In the title compound, [Mo(C10H12N2O)(CO)4], the molybdenum(0) center is surrounded by a bidentate diimine [4,4-dimethyl-2-(pyridin-2-yl)-2-oxazoline] and four carbonyl ligands in a distorted octahedral coordination geometry. The diimine ligand coordinates via the two nitrogen atoms. The experimental process involved the reaction of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine(cas: 109660-12-0).Related Products of 109660-12-0

The Article related to tetracarbonyl dimethyl pyridinyl oxazoline molybdenum crystallization, Placeholder for records without volume info and other aspects.Related Products of 109660-12-0

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 31, 2020, Jin, Lei; Yang, Jia-Qiang; Yang, Fang-Zu; Wu, De-Yin; Tian, Zhong-Qun published an article.Application In Synthesis of Pyridine-3-sulfonic acid The title of the article was Electrochemistry and coordination behaviors of hypoxanthine-Au (III) ion in the cyanide-free gold electrodeposition. And the article contained the following:

Alkaloid hypoxanthine is a novel complexant for green cyanide-free Au(III) electrodeposition. The electrochem. and coordination behaviors of hypoxanthine-Au(III) ion in the green cyanide-free bath were studied. The electrochem. behavior confirms that hypoxanthine-Au(III) ion is in the irreversible two-step electro-reductions with the 1st controlled by diffusion and the 2nd by diffusion and electrochem. The stability constant of hypoxanthine-Au(III) ion is 4.8 × 1030. DFT calculations further indicate that the optimal coordination structure is N3-Au-N7 with the N-Au average bond energy of 11.03 eV. The bath component of K citrate plays almost no influence, whereas the additive of sulfocompounds shows a significant effect on the electro-reduction of hypoxanthine-Au(III) ion. Based on the cyanide-free Au(III) electrodeposition bath, the obtained Au coating is fine and compact in grains without organic inclusion and in the resistivity of 2.84 × 10-8 Ω m. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Application In Synthesis of Pyridine-3-sulfonic acid

The Article related to electrochem coordination hypoxanthine gold electrodeposition, Placeholder for records without volume info and other aspects.Application In Synthesis of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On October 31, 2014, Zhao, Chongjian; Li, Chuwen; Shen, Moyuan; Huang, Lanfen; Li, Qianhong; Hu, Mingyuan; Deng, Hong published an article.Electric Literature of 636-73-7 The title of the article was Syntheses, structures and photoluminescence of Cd(II) coordination polymers based on in situ synthesized bifunctional ligands. And the article contained the following:

By employing Cd(II) salt, NaN3, and CN-(CH2)n-NC (n = 1, 2) and with the absence or presence of secondary ligands, four new cadmium coordination frameworks, named, {[Cd4(btm)4(H2O)2]·3H2O}n (1); [Cd2(btm)2(H2O)]n (2); [Cd2(bte)(PMA)0.5(H2O)]n (3); and [Cd(tzp)(2,2′-bipy)]n (4) (H2btm = bis(tetrazole) methane: H2bte = 1,2-bis(tetrazole-5-yl)ethane; H2tzp = 1H-tetrazolate-5-propionic acid; bipy = bipyridine; PMA = 1,2,4,5-benzenetetracarboxylic acid) were synthesized via in situ hydrothermal reaction. Single crystal x-ray diffraction reveals that compounds 1-3 are all three-dimensional (3D) frameworks. Compound 1 is constructed by Cd1- and Cd3-btm2- layers and large bridging metalloligands. Compound 2 exhibits a 3D framework with two-dimensional (2D) Cd-btm2- (adopting μ6:κN1, N1′: κN2: κN3: κN4: κN3′: κN4’coordination mode) layers pillared by μ3:κN1, N1′: κN2: κN4′ btm2-. Compound 3 is built up by the Cd-bte2- layers and the linker PMA, with left- and right-handed helical chains arranged alternately. It is notable that btm2- takes on six different coordination modes in 1 and 2. Compound 4 represents a 2D layered framework, which can be simplified into a Shubnikov plane net (4.82̂) topol. network with 3-connected T shape linker tzp2- ligands. In addition, the research results show that compounds 1-4 exhibit different fluorescent behaviors and thermal stabilities. 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 luminescence cadmium tetrazole coordination polymer, crystal structure cadmium tetrazole coordination polymer preparation, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Electric Literature of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Li; Yue, Jun-Ming; Qiao, Yong-Zhen; Niu, Yun-Yin; Hou, Hong-Wei published an article in 2013, the title of the article was The side chain template effect in viologen on the formation of polypseudorotaxane architecture. Six novel metal coordination polymers and their properties.Name: 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide And the article contains the following content:

The reaction of CuSCN (or CuCl2) in the presence of excess KSCN directed by viologen-based linear templates in a DMF-methanol system affords six coordination polymers, {(MV)[Cu2(SCN)4]}n (1, MV2+ = 1,1′-dimethyl-4,4′-bipyridinium), {(PrV)[Cu2(SCN)4]}n (2, PrV2+ = 1,1′-dipropyl-4,4′-bipyridinium), {(iPV)[Cu2(SCN)4]}n (3, iPV2+ = 1,1′-diisopropyl-4,4′-bipyridinium), [(1-iBV)Cu2(SCN)3]n (4, 1-iBV2+ = 1-isobutyl-4,4′-bipyridinium), {(iBV)[Cu2(SCN)4]}n (5, iBV2+ = 1,1′-diisobutyl-4,4′-bipyridinium), and {(PtV)[Cu2(SCN)4]}n (6, PtV2+ = 1,1′-dipentyl-4,4′-bipyridinium). The [Cu2(SCN)4]n anion in compounds 1, 3, and 5 adopts an infinite 2D polypseudorotaxane architecture and proved effectively that the stoppers at the end can enhance the polyrotaxane formation in the crystalline state, whereas the anion moieties in compounds 2 and 6 exhibit 1D linear architectures, suggesting dethreading from envelopes once solidifying from solution phase. Compound 4 was found to be a 2D coordination polymer with the organic ligand carrying a single charge. The side chain template effect of substituted group, UV-Vis diffuse reflectance spectra in the solid state and TGA properties of the six complexes are investigated. 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 copper viologen thiocyanate complex preparation crystal structure, absorption spectra copper viologen thiocyanate complex, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Name: 1,1′-Dipropyl-[4,4′-bipyridine]-1,1′-diium bromide

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On August 31, 2002, Rice, Craig R.; Onions, Stuart; Vidal, Natalia; Wallis, John D.; Senna, Maria-Cristina; Pilkington, Melanie; Stoeckli-Evans, Helen published an article.Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine The title of the article was The coordination chemistry of 3,3′-diamino-2,2′-bipyridine and its dication: Exploring the role of the amino groups by X-ray crystallography. And the article contained the following:

The synthesis and structural chem. of new divalent transition metal complexes of the bis-bidentate ligand 3,3′-diamino-2,2′-bipyridine (L1) and its dication L1H2 are described. Ligand L1 reacts with salts of divalent transition metals (Cu(II), Mn(II) and Zn) to afford the (1:1) metal-ligand complexes (2a-2d) as well as the tris complexes (3a-3f). All complexes were fully characterized by spectroscopic methods and the following compounds [Cu(L1)Cl2]2 (2a), [Cu(L1)(OAc)2] (2b), [Zn(L1)3][OTf]2 (3a), and [Zn(L1)3][ZnCl4] (3e and 3f) were structurally characterized. Results from single crystal x-ray diffraction measurements indicate that formation of an intramol. H bond between the two amino groups allows the ligand to coordinate divalent metal ions through their diimine binding sites. Also, the structure of compound 2a reveals that it crystallizes as a dimer in which each Cu ion is bound to two pyridine N atoms and two chloride ions in a distorted square planar arrangement, with a long axial contact from a neighboring amino group completing the approx. square-pyramidal geometry at CuII. Complexation of this ligand in acidic conditions afforded [Cu(L1H2)Cl4] (4), as well as the two salts [L1H2][CuCl4] (5a) and [L1H2][ZnCl4] (5b). All three compounds were structurally characterized and the dication (L1H2) displays a different coordination preference for the chelation of metal ions. In all three cases, both of the heterocyclic N atoms of the ligand are protonated, thus preventing chelation to the metal ion, although for compound 4 crystallog. studies reveal that the two amino functionalities coordinate the Cu(II) ion. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine

The Article related to transition metal aminobipyridine preparation structure, crystal structure transition metal aminobipyridine, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On January 31, 2011, Guo, Peng; Wang, Jing; Wang, Gang; Li, Shen-jie; Huang, Wen-zhi; Lin, Yu-han; Xu, Guo-hai; Pan, Dao-cheng published an article.Safety of Pyridine-3-sulfonic acid The title of the article was Two three-dimensional pillar-layer AgI-frameworks with helical arrays containing hexamine. And the article contained the following:

Two three-dimensional pillar-layer AgI-frameworks with helical arrays were synthesized at room temperature Compound 1, {[Ag2(H2O)(L2)2L1]·H2O}n (L1 = hexamethylenetetramine, HL2 = 3-pyridinesulfonic acid), is constructed from two-dimensional (6,3) layers which are braced by helical arrays; compound 2, {[Ag3(L1)2(L3)]·6H2O}n (H3L3 = citric acid), is created by two-dimensional layers which are made up of the mix-helical arrays and further pillared by L3 anions and Ag ions. Compounds 1 and 2 were characterized by single-crystal x-ray structure determination, powder X-ray diffraction, IR and TGA. Also, the water and methanol adsorption isotherms for compound 1 were studied. 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 silver hexamethylenetetramine pyridinesulfonate citrate polymeric complex preparation crystal structure, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Safety of Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

On July 25, 1994, Hurh, Byungserk; Tamane, Tsuneo; Nagasawa, Toru published an article.Product Details of 636-73-7 The title of the article was Purification and characterization of nicotinic acid dehydrogenase from Pseudomonas fluorescens TN5. And the article contained the following:

Membrane-bound nicotinic acid dehydrogenase, an enzyme that catalyzes the formation of 6-hydroxynicotinic acid from nicotinic acid, was solubilized with Triton X-100, and then purified 126-fold with an 11.1% overall recovery from nicotinic acid-induced cells of Pseudomonas fluorescens TN5. The purified enzyme appeared to be homogeneous from anal. by polyacrylamide gel electrophoresis. The enzyme had a mol. mass of approx. 80 kDa and consisted of one subunit. Some electron acceptors, such as phenazine methosulfate, K3Fe(CN)6 and nitro blue tetrazolium, acted as electron acceptors. The purified enzyme catalyzed the hydroxylation of nicotinic acid to 6-hydroxynicotinic acid at a rate of 672 μmol min-1 mg-1 of protein at 35°. It also catalyzed the hydroxylation of pyrazinecarboxylic acid, 3-pyridinesulfonic acid, and 3-cyanopyridine. The purified enzyme exhibited an optimum pH of 8.3, and was sensitive to thiol reagents such as HgCl2 and p-chloromercuribenzoate. A reduction in the amount of the cytochrome c-like component in the respiratory particles was observed during the hydroxylation reaction of nicotinic acid. Thus, nicotinic acid dehydrogenase appeared to be linked to the cytochrome respiratory chain in the cells of P. fluorescens TN5. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Product Details of 636-73-7

The Article related to pseudomonas nicotinate dehydrogenase, respiratory chain coupling nicotinate dehydrogenase pseudomonas, Enzymes: Separation-Purification-General Characterization and other aspects.Product Details of 636-73-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jia, Jing-jing; Zhang, Ling-kai; Li, Shi-xiong; Jiang, Yi-min; Pei, Luo; Yin, Xiu-ju; Liao, Bei-ling published an article in 2017, the title of the article was Synthesis, structure and magnetic analysis of the cobalt polymer based on N-[(3-pyridine)-sulfonyl]aspartate.Recommanded Product: Pyridine-3-sulfonic acid And the article contains the following content:

One new cobalt polymer [Co(L)·3H2O]n (1, H2L = N-[(3-pyridine)-sulfonyl]aspartate) has been synthesized and characterized by single-crystal x-ray diffraction and elemental anal. Polymer 1 belongs to the monoclinic system, space group P21/n with a = 11.479(2), b = 7.3180(15), c = 16.424(3) Å, β = 109.56(3) °, V = 1300.1(5) Å3, Mr = 385.22, Z = 12, F(000) = 790, S = 1.054, R = 0.0670, wR = 0.1147,(Δρ)max = 1.158 and (Δρ)min = -0.754 e/Å3. TGA showed that the polymer first lost one coordinated water mol. and then another two coordinated water mols. The values of the Curie and Curie-Weiss constants of polymer 1 are Cm = 2.67 cm3 mol-1 K and θ = -21.66 K. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Recommanded Product: Pyridine-3-sulfonic acid

The Article related to cobalt pyridinesulfonylaspartate coordination polymer preparation crystal mol structure magnetic, Inorganic Chemicals and Reactions: Coordination Compounds and other aspects.Recommanded Product: Pyridine-3-sulfonic acid

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem