Roberts and Debenedetti model
The Roberts and Debenedetti model shows both vapor-liquid and closed-loop liquid-liquid equilibrium in a pure substance.
- C. J. Roberts and Pablo G. Debenedetti "Polyamorphism and density anomalies in network-forming fluids: Zeroth- and first-order approximations", Journal of Chemical Physics 105 658 (1996)
- C. J. Roberts, A. Z. Panagiotopoulos, and Pablo G. Debenedetti "Liquid-Liquid Immiscibility in Pure Fluids: Polyamorphism in Simulations of a Network-Forming Fluid", Physical Review Letters 77 pp. 4386-4389 (1996)