Category: 553-53-7

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 553-53-7, Name is Nicotinohydrazide, molecular formula is C6H7N3O, belongs to pyridine-derivatives compound, is a common compound. In a patnet, author is Bankiewicz, Barbara, once mentioned the new application about 553-53-7, Recommanded Product: 553-53-7.

Two New Cocrystals of the Dipicolinic Acid. Hirshfeld Atom Refinement of Crystal Structures and Quantum Theory of Atoms in Molecules Analysis of Molecular Complexes

Pyridine-2,6-dicarboxylic acid (dipicolinic acid; DPA) is a very interesting compound. In addition to its biological significance, the molecule has some interesting structural features. Due to the free rotation of two carboxylic groups, it can very easily change conformation, and thus noncovalently interact as a proton donor and/or acceptor in different molecular systems. In this work, we present two new bicomponent cocrystals of dipicolinic acid. Cocrystallizing molecules are zwitterions of nicotinic acid and glycine, and the hydrogen bonds formed are strong, charge-assisted ones. To obtain a proper crystal structure model and correct hydrogen atom position, we applied Hirshfeld Atom Refinement (HAR). It allowed us to overcome optimization calculation problems and complete the analysis of the particular molecular complexes that occur within the crystal structures as well as in the gas phase environment.

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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Computed Properties of C6H7N3O, 553-53-7, Name is Nicotinohydrazide, SMILES is NNC(C1=CC=CN=C1)=O, belongs to pyridine-derivatives compound. In a document, author is Bibang, Prudence C. J. Ada, introduce the new discover.

Radiolysis of pyridine in solid water

We irradiated the complex organic molecule pyridine and mixtures of pyridine and water in the solid phase (thin icy films) at 12 K at different beam lines of the GANIL facility (ARIBE: 90 keV O6+, SME: 650 MeV Zn26+). The destruction of the initial molecule and the appearance of radiolytic products were followed by in-situ infrared absorption spectroscopy as a function of the projectile fluence with the CASIMIR experimental set-up of CIMAP. We measured the destruction cross section as a function of pyridine concentration. A clear dependence on the percentage of pyridine in H2O was found: the destruction cross sections are significantly higher for small concentration, i.e. pure pyridine is more radioresistant than pyridine diluted in water ice at 12 K. Thus, the presence of water environment significantly modifies the radiation resistance of the initial complex organic molecules: it enhances radiosensitivity and destruction of pyridine, with implications for radiobiology and astrochemistry.Graphical abstract

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 553-53-7. Computed Properties of C6H7N3O.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem