First sen cutoff value, r min , at the first minimum g αβ (r), as shown in Eq. ( ). The Be-F partial PDF has a clear minimum at zero, and we use a r min value of 2.35 Å. However, Winner et al. argued that r min (referred to as the first-coordination shell radius) for F-Be should be 1.92 Å, which resulted in their CN result of 3.9. Using a r min value of 1.92 Å with our NNMD partials at 700 °C, we find the CN to be 3.89 matching their results more closely.