The collapse degree, conversely, gives information about how extended or contracted the clusters are. It is defined as the ratio between the initial ChCl:LA contact area and the contact area at time t. Considering that the contact area of an initial random atomic configuration is likely to be large due to the even distribution of molecular compounds, it decreases as the ChCl clusters are formed, and therefore, the clustering degree increases. Consistent with the earlier observations, the collapse degree reveals a discrepancy in the distribution of these clusters for each force field. Directly comparing each ChCl:LA ratio among the three force fields we deduce that FF1 consistently yields the highest collapse degree, followed by FF2, with FF3 providing the lowest values. In the case of the FF3 force field, the converged value of the collapse degree is close to the initial one for all the ratios studied. This observation indicates that this force field tends to evenly distribute the molecular compounds conforming the DES.