Hydrogen bonded structure of water and aqueous solutions of sodium halides: a Raman spectroscopic study

A new insight on the hydrogen bonding structures of nanoconfined water: a Raman study

“…Actually, in a recent paper, 22 we studied the influence of T as well as the fine size effects on similar samples by deconvoluting the O-H stretching region into four symmetrical profiles in accordance with an interesting model proposed by Walrafen et al 14,15 for bulk H 2 O some years ago. Essentially, the interpretation formulated in our previous work has been partially used here, but with a further and deeper refinement of the aforementioned subbands assignment, having added a new contribution at ¾3020 cm 1 , properly discussed in the framework proposed by Li et al 23 Hence, we best-fitted all the spectra, starting from bulk water passing to the confined sample, both in the case of native and silanised GelSil glass, into five Gaussians, each of them assigned to a particular O-H vibration related to the specific interaction with the absorbing silica substrate. In Fig.…”

Raman spectroscopic study of trivalent lanthanides in concentrated aqueous solutions

“…As proposed, the effect of halogen anions on the water structure consists in breaking water-water hydrogen bonds and on the other hand in forming the hydrogen bonds between anions and water molecules that results in the specific changing of the O-H stretching band contour [1,8,9] .…”

Development and application of in situ/operando soft X-ray transmission cells to aqueous solutions and catalytic and electrochemical reactions

“…The solvent-shared ion pair is also confirmed in LiCl solutions by dielectric relaxation measurement [93]. The interactions of anions with water molecules were extensively studied by using the OH stretching mode in Raman spectroscopy [10][11][12]. The hydration shell of anions is reconstructed within several pico seconds, as observed by time-resolved IR and Raman spectroscopy [94][95][96][97].…”

“…For example, the OH stretching mode is effectively observed in Raman spectroscopy [10][11][12] to reveal the hydration structure of the anion to the hydrogen of water in aqueous salt solutions. In aqueous pyridine solutions, the HB interaction between N atoms in pyridine and water molecules is revealed by IR [13] and Raman spectroscopy [14,15]; in aqueous acetonitrile solutions, the HB interaction is revealed by the C N and OH stretching modes in IR spectroscopy [9,16,17].…”