Ultrafast X-ray measurements of the glass-like, high-frequency stiffness of aqueous solutions. Issue 31 (27th July 2017)

• Record Type: Journal Article
• Authors: Jiao, Yishuo; Adams, Bernhard; Rose-Petruck, Christoph
• Is Part Of: Physical chemistry chemical physics. Volume 19:Issue 31(2017)
• Page Start: 21095
• Page End: 21100
• Publication Date: 2017-07-27
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c7cp02747h
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The ultrafast dynamics of the domains surrounding solutes in aqueous solution were measured using laser-generating GHz phonons in 30 mM ferrocyanide solutions and the resulting molecular motions of the solutes and their hydrogen-bonded solvation shells were detected using ultrafast X-ray absorption spectroscopy (UXAS). Abstract : The ultrafast dynamics of the domains surrounding solutes in aqueous solution were measured using laser-generating GHz phonons inside of 30 mM ferrocyanide solutions and the resulting molecular motions of the solutes and their hydrogen-bonded solvation shells were detected using ultrafast X-ray absorption spectroscopy (UXAS). The measurements of the phonon dynamics around the solutes showed that the domains had a glass-like stiffness on a timescale of tens of picoseconds.