The HS-I, CS-I, and CS-II structures of hydrate correspond to the Z, A15, and C15 phases of the Frank-Kasper phase, respectively. With the discovery of HS-I, the primitive structures at the three ...

The left image shows a crystal structure of dynamic water molecule cluster like liquid at −20 °C in the supercooled water state revealed previously by X-ray structural analysis. The right image shows ...