Top Picks: new discover of 108-47-4

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 108-47-4, help many people in the next few years.category: chiral-nitrogen-ligands

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. category: chiral-nitrogen-ligands, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 108-47-4, name is 2,4-Dimethylpyridine. In an article£¬Which mentioned a new discovery about 108-47-4

Nitrogen-15 Nuclear Magnetic Resonance Studies of Hydrogen Bonding and Proton Transfer in Some Pyridine Trifluoroacetates in Dichloromethane

The 15N NMR chemical shifts of ten substituted pyridines (B) and their complexes with trifluoroacetic acid (AHB) were measured at the natural abundance level in dichloromethane.The plot of the relative chemical shifts against DeltapKa gives a titration curve which reflects a protometric equilibrium AH…B ->/<- A-...HB+.These data were used to determine the constants of the overall proton transfer reaction (Kexp).A linear relationship holds between log Kexp and DeltapKa. Deltadelta(15N) values can be treated as a good hydrogen bond parameter.KEY WORDS: 15N NMR spectroscopy, Hydrogen bond, Proton transfer, Pyridines I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 108-47-4, help many people in the next few years.category: chiral-nitrogen-ligands

Reference£º
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis