phase diagram of zwitterions

[epsilonprodigy]

If there were to be a phase diagram of something zwitterionic, would it resemble the phase diagram of water because of the significance of its intermolecular interactions?

I understand that water's phase diagram looks the way it does because solid ice is less dense than liquid water at certain temps, but wonder if this is also the case for other things that either hydrogen-bond or have other types of intermolecular interactions.

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[PiBond]

If there were to be a phase diagram of something zwitterionic, would it resemble the phase diagram of water because of the significance of its intermolecular interactions?

I understand that water's phase diagram looks the way it does because solid ice is less dense than liquid water at certain temps, but wonder if this is also the case for other things that either hydrogen-bond or have other types of intermolecular interactions.

it most likely wouldn't. water's negative slope phenomena is due to the fact that an increased pressure can change the solid phase into liquid phase (think ice-skating), which is unusual. just because something is in its zwitterion form doesn't mean it will take on physical properties that mirror another substance. also, having positively and negatively charged sites aren't synonymous to the extensive h-bonding network that water experiences.