I know that the two are different thing, that vdW appears in inert gas crystals and alike while hydrogen bond bonds molecules of water. My question is, how does the potential look for hydrogen bond? For vdWaals we have the two terms proportional to 1/R^6 that describes attraction and 1/R^12 that describes repulsion. Can we say that hydrogen bond has similar dependence? I am curiou cause in nuclear matter systems we say that nuclear matter has forces between nucleons similar as forces between water molecules, but then we use the vdW like potential. So I am not sure, can we compare it with water bonds or not?