Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , HPLC of Formula: C14H10ClNO, 31251-41-9, Name is 8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one, molecular formula is C14H10ClNO, belongs to pyridine-derivatives compound. In a document, author is Sanchez-Velandia, Julian E., introduce the new discover.
Kinetics of the isomerization of alpha-pinene epoxide over Fe supported MCM-41 and SBA-15 materials
A kinetic study for the isomerization of alpha-pinene epoxide over Fe/SBA-15 and Fe/MCM-41 catalysts was developed using a pseudo-homogeneous (polynomial law) and heterogeneous (LHHW formalism with one and two actives sites) models. TEM analysis of Fe/SBA-15 and Fe/MCM-41 showed that the materials have the typical hexagonal organization; FTIR adsorption-desorption of pyridine revealed the presence of Lewis acidity in both Fe/SBA-15 and Fe/MCM-41 catalysts. The presence of Fe3+ and Fe2+ species was concluded from XPS analysis; however, active site for alpha-pinene epoxide isomerization was attributed to Fe3+. With toluene as solvent, it was found that in both catalysts, the more adequate kinetic model was the unimolecular LHHW model with two active sites of the same type. Apparently, alpha-pinene epoxide isomerization is much faster over Fe/MCM-41 (5.78 L h(-1) g(Fe)(-1)) than over Fe/SBA-15 (1.14 L h(-1) g(Fe)(-1)). The activation energy for both Fe catalysts was evaluated using solvents of different polarity. In the case of Fe/MCM-41, the less energetic barrier was observed with toluene (30.99 kJ mol(-1)), while tert-butanol (13.76 kJ mol(-1)) was more favorable in the case of Fe/SBA-15 catalyst. Fe/MCM-41 is a very robust catalyst because it can be used up to four times without a significant loss of catalytic activity in comparison with Fe/SBA-15 that only can be used two times. Finally, a reaction mechanism was proposed for the isomerization of alpha-pinene epoxide over both Fe/SBA-15 and Fe/MCM-41 catalysts.
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 31251-41-9. HPLC of Formula: C14H10ClNO.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem