In order to understand the origins of these effects better and to explore the topography of the underlying potential energy landscape (PES), we conducted an inherent structure analysis. This procedure has first been used to study the potential energy landscape of liquids and soft-matter systems such as proteins. The top panel of Fig. shows a schematic of how this is conducted for our specific system. Here, we performed a geometry optimization of many structures sampled from the FES at 300K (top panel of Fig. ), that start from different initial values of the CN . These configurations are subsequently quenched via a geometry optimization on the PES (middle panel of Fig. ).