Abstract
We have reported X-ray diffractometry for analyzing the structure of water confined in nanochannels. However, the signal-to-noise ratio was not sufficient to discuss the radial distribution function (RDF), which contains microscopic structural information. In this study, the measurement conditions were optimized, and the accuracy was much improved. The radial distribution function was obtained. The structures were also measured by Raman microscopy. These methods and information will be quite important for designing chemical reactions and fluidic circuit in nanochannels.