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, 1539-42-0, Name is Bis(pyridin-2-ylmethyl)amine, SMILES is C(NCC1=NC=CC=C1)C1=NC=CC=C1, belongs to pyridine-derivatives compound. In a document, author is Robertson, Patrick A., introduce the new discover, Product Details of 1539-42-0.
Conformer Specific Ultraviolet and Infrared Detection of Nicotine in the Vapor Phase
A gas-phase electronic spectrum of nicotine in a supersonic expansion has been recorded using two-color resonant two-photon ionization spectroscopy. Efficient photoionization was achievable only via the pyridine chromophore owing to poor Franck-Condon overlap in the N-methylpyrrolidine moiety. Two conformers of nicotine have been characterized and assigned by infrared-ultraviolet (IR-UV) ion depletion and IR-UV hole-burning spectroscopy, in combination with quantum chemical techniques. Trans-A with nitrogen atoms further apart is more stable by 2 kJ mol(-1) and the most populated conformer in the supersonic jet, owing this stability to a stronger inter-ring CH center dot center dot center dot N hydrogen bond than the trans-B counterpart.
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 1539-42-0 is helpful to your research. Product Details of 1539-42-0.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem