Here, 𝑁 𝑖 (𝑟) signifies the coordination number of Ow/Urea/Choline around Ow and 𝑁 𝑖 (𝑟 𝐵𝑢𝑙𝑘 )is designated as the coordination number of Ow/Urea/Choline around Ow at the bulk and 𝑟 𝐵𝑢𝑙𝑘 ≫ 3Å. The subscript 𝑖denotes the different components considered in the calculation, here Ow, urea, and choline. where Ow-Urea and Ow-choline have sharp minima. For each pair, as bulk is approached, preferential accumulation/exclusion is diminished and 𝛷 𝑖 (𝑟) converges to 1.