Low-temperature structure formation and glass transition behaviors oflow-dimensional water

在纳米管中，水被混淆的静态和动态属性是由亚原子热量测量和DSC研究的。在Silica的Pors MCM-41中显示了玻璃过渡到160 K，然后显示了210 K，如极点大小增加，同时115 K左右的空隙水。The 210 K is the glass transition temperature firstly observed and claimed.Inorganic and organic hybrid crystals [Ni（cyclam）（H2O）2]3·24 H2O， [Co（H2bim）3·（TMA）·0 H2O， and [Cr（H2bim）3·（TMA）·nH2O have pore diameters 1. 0，1. 5， and 1. 6 nm， respectively， with the pore wall structure of crystalline framework。在第一个物质中没有阶段过渡。在两个更深的纳米油中，水消耗了它们的结构订购和玻璃过渡，而在订购中的协同作用比在Coone中的Cr化合物中更高。当MCM 41中的表面水在任何大小上都被打乱时，这些晶体中的一个被称为晶体框架结构的晶体。 ... More k of the pore wall. InNa-RUB-18晶体在白天层之间放置纳米片水，在氢键网络中不参与水在194 K和106 K的玻璃过渡中显示出一个阶段过渡。没有异常现象是在氢键链嵌入硅醇组中观察到的，在1.1纳米硅凝胶片中发现了甲基醇的问题解决方案，因为在高浓度地区的玻璃过渡行为中，对这些系统中的氢键网络固有的纯净水没有形成，而且，这种固有的网络在恶劣的地区形成，准确地说，玻璃过渡温度迅速增加到160 K的纯净水。类似的行为被发现在MCM 41端口中的乙基糖醇问题解决方案。关于另一方面，有人建议用水分子结合网络结构形成的羟基胺解决方案，但由于第二成分的介绍，一种可能性被确定为一种液体-液体相转换occurs，它被包括在低温下的水分子形式中自己的characteristic hydrogen-Bond网络，这就是放松的时间，因此玻璃过渡温度跳跃到网络中的发展阶段。Less（低）

Static and dynamic properties of the water confined within nano-pores were studied by adiabatic calorimetry and DSC. The internal water within the pores of silica MCM-41 showed its glass transition at 160 K and then 210 K as the pole size increases, while the interfacial water at around 115 K. The 210 K is the glass transition temperature firstly observed and claimed.Inorganic and organic hybrid crystals [Ni(cyclam)(H2O)2]3・24H2O, [Co(H2bim)3](TMA)・0H2O, and [Cr(H2bim)3](TMA)・nH2O have pore diameters 1.0, 1.5, and 1.6 nm, respectively, with the pore wall structure of crystalline framework. No phase transition was observed in the first substance. The water within the nanopores in the latter two shoved its structural ordering and glass transitions, the cooperativeness in the ordering was higher in the Cr compound than in the Co one. While the interfacial water in MCM41 is disordered in any size, the one in these crystals famed the ordered structures conforming to the crystalline framewor … More k of the pore wall.InNa-RUB-18 crystal possessing nano-sheet water between day layers, the water without participating in the hydrogen-bond network showed a phase transition at 194 K and a glass transition at 106K. No anomaly was observed in the hydrogen-bond chain inclding silanol groups.It was found in methanol aqueous solutions within 1.1 nm pores of silica gel that the glass transition behavior in the high concentration region corresponds to that of the systems in which a hydrogen-bond network inherent to pure water is not formed, and that the inherent network is formed in the dilute region and accordingly the glass transition temperature increases rapidly to approach 160K in the pure water. The similar behavior was observed in the ethylene glycol aqueous solutions within MCM41 pores. On the other hand, it was suggested in hydroxylamine solutions that the hydrogen-bond network structure formed by water molecules is not destroyed by introduction of the second component, and a possibility was indicated that a kind of liquid-liquid phase transition occurs.It was concluded that water molecules forms their own characteristic hydrogen-bond network at low temperatures, and that the relaxation time and therefore the glass transition temperature jumps according to the stages of the development in the network. Less