Hydrogen bonding is of two types - t Intramolecular and intermolecular Am I right ?

1 Answer
Aug 24, 2017

Nope. It is only intermolecular.

It is just a misnomer that we call it "hydrogen-bonding". Yes, the hydrogen is bonded within the molecule, but the term "hydrogen-bonding" does not refer to that.

![https://upload.wikimedia.org/](useruploads.socratic.org)

It refers to the polarizing interaction with an electronegative atom on another molecule, which strictly speaking, is a significantly weaker interaction than in a regular bond.

This interaction is...

the polarization of electron density from an adjacent molecule's H atom by an electronegative-enough atom.

Often we speak of "O", "N", and "F" NOT bonded to the "H" in question as being hydrogen-bond acceptor atoms. The electronegative atom BONDED to the "H" atom is then the hydrogen-bond donor.

Thus, there is particularly noticeable hydrogen-bonding in "NH"_3, "HF", and "H"_2"O" samples.


It is not, however, restricted to "N"cdots"H"-"N", "O"cdots"H"-"O", and "F"cdots"H"-"F" interactions. [Chloroform and acetone are also known to weakly hydrogen-bond.](https://socratic.org/questions/introduced-a-glass-into-beaker-containing-acetone-and-chloroform-what-will-you-h)