Related Products of 108-47-4, Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.108-47-4, Name is 2,4-Dimethylpyridine, molecular formula is C7H9N. In a article£¬once mentioned of 108-47-4
The effect of temperature, between 87 and 250 deg C, on the mobility of protonated amines in helium, air, CO2, and SF6 was studied by ion mobility spectrometry.In helium, the reduced mobility was found to decrease as the temperature was raised, due to an increase in the collision cross section, and was approximately proportional to T-1/2.In CO2, where clustering takes place at low temperatures, raising the temperature led to an increase in the reduced mobility, mainly due to breakdown of the clusters and a decrease in the effective mass of the ion.In air, where only little clustering was observed, the reduced mobility of light ions in creases with the temperature, while for heavy ions the oposite was found.In SF6, like in CO2, the increase of the reduced mobility with temperature was attributed to breakdown of clusters.An expression for the temperature dependence of the reduced mobility in each of these drift gases was determined semiempirically.
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, they are the focus of active research. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 108-47-4
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