Supercooling Behavior and Dipole-Glass-like Relaxation in a Three-Dimensional Water Framework

The dynamic behaviors
of a new type of three-dimensional (3D) water
framework symbiotic with 1D stacking organic guests, including an
order–disorder transition of hydrogen atoms, a supercooling
phenomenon during phase transition, and a dipole-glass-like relaxation
behavior due to locally trapped water molecules, are presented. This
extremely scarce 3D water framework, together with the rich dynamic
behaviors it exhibits, provides new clues to design new ice-like models
for promoting the fundamental understanding of the dynamic behavior
of water in diverse solid-states.

本研究报道了一类与一维（1D）堆叠有机客体共生的新型三维（3D）水骨架的动态行为，涵盖氢原子的有序-无序转变、相变过程中的过冷现象，以及局域束缚水分子诱发的类偶极玻璃弛豫行为。这种极为罕见的三维水骨架及其所展现的丰富动态行为，为设计新型类冰模型提供了全新线索，有助于推动学界对不同固态环境中水的动态行为的基础认知。