Category: 2215-33-0

Costanzo, L. L. published the artcileSensitized photoisomerization of pyridylhydrazones, COA of Formula: C11H10N4, the publication is Journal of Photochemistry (1980), 14(2), 125-32, database is CAplus.

The syn–anti isomerizations of benzaldehyde 2-pyridylhydrazone (I) and 2-pyridinecarboxaldehyde 2-pyridylhydrazone (II) by triplet energy transfer were investigated. II underwent reversible isomerization without side reactions; the triplet states implied in the process were quenchable by azulene and their lifetime was determined Isomerization and secondary photolysis reactions occurred simultaneously in I, regardless of the nature of the sensitizer. The pathways of the direct and sensitized isomerizations do not involve intersystem crossing.

Journal of Photochemistry published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, COA of Formula: C11H10N4.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Lee, Kum-Tatt published the artcileUse of pyridine-2-aldehyde-2′-pyridylhydrazone for trace analysis of copper in foods, HPLC of Formula: 2215-33-0, the publication is Mikrochimica Acta (1976), 2(5-6), 505-13, database is CAplus.

Aqueous extracts of food were treated with a solution of pyridine-2-aldehyde-2′-pyridylhydrazone [2215-33-0] in 0.01M HCl (100 mg/100 ml) under slightly alk. conditions and the complex between Cu and the reagent was extracted with amyl alc. and the Cu content determined by colorimetry or by at. absorption. In tests with 0-10 mg Cu/20 g sugar and 0-20 μg/0.2 g defatted cocoa, 98-102% of the Cu was recovered by this method.

Mikrochimica Acta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, HPLC of Formula: 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Ly, Hoang Nguyen published the artcileSpectroscopy, electrochemistry, and nucleophilicity of nickel and cobalt complexes of 2′-pyridine carboxaldehyde 2′-pyridylhydrazone (papyH), Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Inorganica Chimica Acta (2011), 378(1), 115-120, database is CAplus.

Ni and Co complexes of pyridine-2-carboxaldehyde 2-pyridylhydrazone (papyH) and N-methyl(pyridine-2-carboxaldehyde 2-pyridylhydrazone) (papyMe) were fully characterized through electrochem., titration, and alkylation with Me iodide. The results were compared with existing data on similar Zn and Fe complexes. Both rate constants for alkylation and ligand pK_a depend on the coordinated metal and can be understood based on the influence of d electrons on the ligand MOs.

Inorganica Chimica Acta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Jimenez Plaza, J. published the artcile2-Pyridylaldehyde-2-pyridylhydrazone as an analytical reagent. V. Spectrophotometric determination of copper(II), Application of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Boletin de la Sociedad Quimica del Peru (1980), 46(1), 94-102, database is CAplus.

2-Pyridylaldehyde-2-pyridylhydrazone reacts with Cu(II) in pH 5 buffer solution (HOAc-NaOAc) to form a 1:1 complex. The reaction can be used to determine Cu(II) by measuring the absorbance of the complex at 350-370 nm. Beer’s law is obeyed for 1-6.5 ppm Cu. Tolerance levels are given for 30 ions.

Boletin de la Sociedad Quimica del Peru published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Application of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Gimenez Plaza, J. published the artcile2-Pyridinecarboxaldehyde 2-pyridylhydrazone as analytical reagent. III. Spectrophotometric determination of cobalt(II), Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Afinidad (1980), 37(367), 243-6, database is CAplus.

A method for the spectrophotometric determination of Co(II) is based on the formation of a 1:1 complex of Co(II) with 2-pyridinecarboxaldehyde 2-pyridylhydrazone (I). Approx. 10 mL EtOH was added to the sample with 3 mL HOAc/NaOAc buffer (pH 6) and 5 mL 0.002M I and the total volume was adjusted to 25 mL. The absorbance was measured at 350-90 nm after 15 min. The relative error was 0.3-0.5% for determining 2-5 ppm Co. Significant interference was observed from � ppm Hg(II), Cu(II), Sn(II), Fe(III), Ni(II), Zn(II), Fe(II), Pd(II), Au(III), Mo(VI), V(V), Os(VIII), and Ce(IV). The logarithm of the stability constant of the Cr-I complex is 6.88.

Afinidad published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Gimenez Plaza, J. published the artcile2-Pyridylaldehyde 2-pyridylhydrazone as an analytical reagent. VI. Spectrophotometric determination of iron(II), Formula: C11H10N4, the publication is Boletin de la Sociedad Quimica del Peru (1980), 46(3), 278-8, database is CAplus.

Fe(II) 3-10 ppm in aqueous solution was determined spectrophotometrically by reaction with 10 mL 2 × 10^-3M 2-pyridylaldehyde 2-pyridylhydrazone in the presence of 5mL pH 9 NH₄Cl-NH₄OH buffer. The order of reagent addition is not important. The maximum absorption of the violet solution is at 550 nm. The complex is stable for at least 3 h. Stoichiometry of the complex is 2:1 (reagent/cation). Beer’s law is obeyed for 2-16 ppm Fe(II). Zr(IV) and Be(II) >50 ppm and Sn(II), Co(II), and Ce(II) >2 ppm interfere.

Boletin de la Sociedad Quimica del Peru published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Formula: C11H10N4.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Gimenez Plaza, J. published the artcile2-Pyridinecarboxaldehyde 2-pyridylhydrazone as analytical agent. IV. Spectrophotometric determination of palladium(II), Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Afinidad (1980), 37(367), 237-9, database is CAplus.

Pd(II) was determined spectrophotometrically as its 1:1 complex with 2-pyridinecarboxaldehyde 2-pyridylhydrazone. Approx. 5 mL 0.002M 2-pyridinecarboxaldehyde 2-pyridylhydrazone and 5 mL HOAc/NaOAc buffer (pH5) were added to the sample in a total volume of 25 mL. The absorbance of the solution was measured at 360-390 nm after 1 h. The relative error in the determination of 2.5-7 ppm Pd was 0.3-0.5%. Significant interference was caused by � ppm Ag(I), Cu(II), Co(II), Sn(II), Ni(II), Fe(II), Fe(III), V(V), and Au(III).

Afinidad published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Gimenez Plaza, J. published the artcile2-Pyridylaldehyde-2-pyridylhydrazone as an analysis reagent. II. Spectrophotometric determination of nickel(II), COA of Formula: C11H10N4, the publication is Revista de la Sociedad Quimica de Mexico (1981), 25(4), 488-91, database is CAplus.

Ni²⁺ reacts with 2-pyridylaldehyde-2-pyridylhydrazide to form a yellow 1:1 complex which has maximum absorbance at 355 nm and pH 7.5. The color is stable up to 3 h when the order of addition is reagent + cation + buffer. Beer’s law is obeyed for 1-7 ppm Ni. Ag, Hg(II), Sb(III), Sn(II), Fe(II), Fe(III), Al, Co(II), Zn, Mn(II), Pd(II), Be, Cu(II), Cd, Au(III), Bi, Ce(IV), Ca, Sr, Ba, and Mg 2 ppm interfere.

Revista de la Sociedad Quimica de Mexico published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, COA of Formula: C11H10N4.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Quddus, M. A. published the artcileExtraction of zinc by pyridine 2-carboxaldehyde 2-pyridylhydrazone (PAPHY) in chloroform, SDS of cas: 2215-33-0, the publication is Journal of Inorganic and Nuclear Chemistry (1971), 33(7), 2001-7, database is CAplus.

The distribution of Zn between aqueous solutions and pyridine 2-carboxaldehyde 2-pyridylhydrazone (PAPHY) in CHCl3 has been studied as a function of the pH of the aqueous phase and the concentration of PAPHY. Stability and acid dissociation constants of the complex ions have been determined as well as the partition coefficients of the ligand and its extractable Zn complex. An equation has been proposed to represent the extraction equilibrium and its essential correctness verified.

Journal of Inorganic and Nuclear Chemistry published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, SDS of cas: 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Wood, Aaron published the artcileCoordinated Hydrazone Ligands as Nucleophiles: Reactions of Fe(papy)₂, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Inorganic Chemistry (2004), 43(26), 8355-8360, database is CAplus and MEDLINE.

The diamagnetic Fe(II) complexes of the hydrazone ligand pyridinecarboxaldehyde-2′-pyridylhydrazone (papyH) were characterized by NMR, IR, UV-visible, and electrochem. The dication Fe(papyH)₂²⁺ undergoes reversible 1-electron oxidation at 0.66 V vs. internal ferrocene and shows a strong metal-ligand charge-transfer band in the visible region at 524 nm. Deprotonation with NaOH gives diamagnetic, neutral Fe(papy)₂ with an oxidation potential of -0.25 V vs. internal ferrocene and a charge-transfer band at 603 nm. Fe(papy)₂ reacts with active alkylating agents to give dialkyl complexes Fe(papyR)₂²⁺ with spectroscopic properties similar to those of Fe(papyH)₂²⁺. Monitoring the alkylation by UV-visible reveals the intermediacy of a monoalkylated species.

Inorganic Chemistry published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C10H14O, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem