I wonder whether two pyridine molecules can be linked by a H+ ion so as to form a dimer in acidic aqueous solutions.
With the followup, this is almost two questions. The answer to the first question is that it would be possible, but as specified, no. In an acidic aqueous medium, the pyridine molecules would be individually protonated with the excess acid.
Can one form (Pyr)2
? I presume that if one took a pyridinium salt and added a mole of pyridine to it, then one could find some pyridine hydrogen bonded to the proton of a protonated pyridine.
If you added a great molar excess of water to it, would the water disrupt the hydrogen bonded dimer? I presume it would, but I wouldn't know to what extent. I am also uncertain how one would answer this question definitively. How do you measure hydrogen bonding and hydrogen bonding species in water?