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, 156-83-2, Name is 6-Chloropyrimidine-2,4-diamine, SMILES is NC1=CC(Cl)=NC(N)=N1, belongs to pyrimidines compound. In a document, author is Szatylowicz, Halina, introduce the new discover, Recommanded Product: 156-83-2.
Aromaticity of nucleic acid bases
3D shape and the resulting physicochemical properties of double-helical DNA/RNA structures are determined not only by individual nucleobases, but also by their additive intermolecular interactions. Energetic contribution from aromatic pi-pi stacking to the stabilization of DNA/RNA is not small and sometimes even comparable to that from H-bonding. The basis of the stacking interactions lies in the pi-electron structure of individual nucleobases, which can be described by various aromaticity indices. Heteroatoms and exocyclic functional groups make the electronic structure of nucleobases different from aromatic hydrocarbons. Consequently, the cyclic pi-electron delocalization is not the only factor responsible for the relative stability of their tautomers. This review puts the spotlight on interplay between aromaticity of purine and pyrimidine nucleobases and their tautomeric preferences, as well as on the effects of different noncovalent interactions (hydrogen bonding, metal ion coordination, and pi-pi stacking) on pi-electron delocalization of five- and six-membered rings in individual nucleobases and their complexes. This article is categorized under: Structure and Mechanism > Molecular Structures Electronic Structure Theory > Density Functional Theory
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 156-83-2 is helpful to your research. Recommanded Product: 156-83-2.
Reference:
Pyrimidine | C4H4N2 – PubChem,
,Pyrimidine – Wikipedia