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, 6602-54-6, Name is 2-Chloronicotinonitrile, SMILES is C1=C(C(=NC=C1)Cl)C#N, belongs to pyridine-derivatives compound. In a document, author is Kitagishi, Hiroaki, introduce the new discover, Name: 2-Chloronicotinonitrile.
Synthetic heme protein models that function in aqueous solution
Myoglobin (Mb) is considered as the optimal system for capturing molecular oxygen (O-2) in aqueous solution under natural conditions. Therefore, the preparation of artificial systems that mimic the function of Mb is a long-standing and challenging objective. Various sophisticated iron porphyrins have been designed and synthesized to realize O-2 biding at their axial positions. Although all of these compounds reversibly bind O-2 in absolute organic solvents, no stable O-2 adducts were obtained in aqueous solution. The reason for this is the immediate autoxidation of O-2 adducts by water molecules. To achieve O-2 binding in aqueous solution, the iron center of the porphyrin must be placed in a hydrophobic environment, wherefrom a water molecule is strictly excluded. Another essential requirement for a Mb model is the preparation of an electron-donative axial ligand that plays the role of proximal histidine (His). As an artificial O-2 receptor that satisfies these challenging requirements, a supramolecule termed hemoCD1 has been constructed. HemoCD1, a 1 : 1 inclusion complex of 5,10,15,20-tetrakis (4-sulfonatophenyl)porphinatoiron(II) ((FeTPPS)-T-II) with a per-O-methylated beta-cyclodextrin dimer bearing a pyridine linker (Py3CD), reversibly binds O-2 in aqueous solution at neutral pH and ambient temperature. The electronic spectra as well as the functions of hemoCD1 are analogous to those of Mb or its tetramer, hemoglobin (Hb). This is the first example of an artificial Hb/Mb biomimetic model capable of function in aqueous solution. Such a study on hemoCD1 as a Hb/Mb model has expanded research objectives to (1) syntheses of hemoCD1 analogues having distinct characteristics, (2) modeling enzymatic reactions of peroxidase, heme oxygenase, and cytochrome c oxidase in water, (3) development of fully synthetic artificial oxygen carriers (AOCs) utilized in animal blood, and (4) selective binding and removal of toxic small molecules, such as carbon monoxide (CO) and cyanide (CN-) in living organisms.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 6602-54-6 is helpful to your research. Name: 2-Chloronicotinonitrile.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem