surface structure of clathrate hydrate

为了研究笼形水合物在低压条件下的形成过程，我们测量了含二氧化碳的气相沉积非晶态冰的红外光谱。从水的O-H型拉伸模态和二氧化碳的不对称拉伸模态振动频率的温度依赖性出发，分析了含二氧化碳的水的结构变化。研究了气相沉积非晶态冰向二氧化碳包合物水合物的转变过程。

To investigate the formation process of clathrate hydrate in a low pressure condition, we measured infrared spectra of a vapor-deposited amorphous ice including carbon dioxide. From the temperature dependence of the vibration frequencies of the O-H stretching modes of water and asymmetric stretching mode of carbon dioxide, we analyzed the structural change of water including carbon dioxide. The results showed the transition process of carbon dioxide clathrate hydrate from the vapor-deposited amorphous ice.