It was found that introduction of a substituent to pyridine-C atom in 3-pyridylboronic acid drastically increased the acidity of the pyridinium moiety, but decreased the acidity of the boron center, whereas the introduction to pyridine-N atom had no influence on the acidity of the boron center...
In general, the primary activator has a higher acidity and/or a greater number of acidic groups per molecule than the secondary activator. The primary activator is selected from compounds having a pKa of less than 8.0 and in some embodiments having two or more acidic groups per molecule, while...
Why doesn t distilled water affect titration? Why is it important to control soil acidity? Why is it that mitigating the cause of ocean acidification will not immediately increase the pH (lower the acidity) along the pacific coast for ye...
The low acidity of trimethylamine (PKa = 9.81) permits the higher permeability of anions because they are dis- sociated from the functional groups [18,36]. The prepared functionalized inorganic/organic composite AEMs will contain a trimethylamine group responsible for higher permeability of anions, ...