A polarizable dipole–dipole interaction model is established to estimate the hydrogen bond distances and interaction energies for hydrogen-bonded complexes containing NH···O=C and CH···O=C hydrogen bonds. The chemical bonds NH, C=O, and CH are regarded as bond dipoles. The dipole–dipole interaction may be attractive or repulsive depending on the relative orientation of the two bond dipoles. The calculations by Shu-Shi Li et al. on page 415 show that this model can accurately and efficiently yield hydrogen bond distances and interaction energies for NH···O=C and CH···O=C hydrogen-bonded complexes.