Moving to the intermediate concentration, the experimental band in the intermediate region broadens and increases in intensity. In this case, the Q/s approach produces a signal mainly associated with the tetramer, which is again notably less intense than the experimental band. In contrast, the C/d method is able to capture the broadening and intensity increase in this intermediate region, resulting in a simulated band that aligns quite well with the experimental data, although it is shifted to lower frequencies, suggesting a possible underestimation of tetramer-related bands.