In this study we investigate vibrational and rotational relaxation of a bromobenzene molecule in the broad spectral region at the room temperature using the Raman scattering spectroscopy method. Experimentally, and by using quantum-chemical calculation, it has been shown that hydrogen atom can have H – bond with carbon atom both inside the molecule, as well as between bromobenzene molecules. Intense lines of the Raman scattering can be observed in the low frequency region of the spectrum, which opens the possibility for observation of the detection of rotational swings of the separate atomic groups in complex molecules.