Soft X-ray Absorption Spectroscopy for Observing Element-specific Intermolecular Interaction in Solution Chemistry
Masanari Nagasaka, Nobuhiro Kosugi
Abstract
Soft X-ray absorption spectroscopy (XAS) observes element-specific intermolecular interactions of light elements in liquid phase through the core-to-valence excitation. We have newly developed liquid cells and devices with precise photoabsorbance control. We demonstrate here their applications to XAS in transmission measurement with aqueous acetonitrile solutions and XAS in fluorescence-yield measurement with microfluidic systems. Soft X-ray absorption spectroscopy (XAS) can be used to observe element-specific intermolecular interactions of light elements in liquid phase through the core-to-valence excitation. We have newly developed liquid cells and devices with precise photoabsorbance control. We demonstrate here their applications to XAS in transmission measurement with aqueous acetonitrile solutions and XAS in fluorescence-yield measurement with microfluidic systems.