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Boltzmann-inverted probability distribution of β (1→4)-glycosidic linkage (ϕ = O5(N)-C1(N)-O4(U)–C4(U) and ψ = C1(N)-O4(U)–C4(U)-C5(U)) in unsulfated chondroitin (CN6) is shown for additive (a and b) and Drude (c and d) simulations, respectively.
