Why is HBr a dipole-dipole interaction and not a hydrogen bond? and Bond Street (Lomo)

Why is HBr a dipole-dipole interaction and not a hydrogen bond?

HF is a hydrogen bond but HBr is a dipole-dipole interaction. Why isn't it a hydrogen bond.


Bond best answer:

Answer by whizkid66
A hydrogen bond only forms when hydrogen bonds with nitrogen, oxygen, or fluorine. The reason for this is due to the high electronegativity of these atoms. A H - Br bond does not have enough of an electronegativity difference to be called a hydrogen bond.

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