Water (H2O and D2O) Molar Absorptivity in the 1000–4000 cm−1Range and Quantitative Infrared Spectroscopy of Aqueous Solutions

Experimental techniques for characterising water in wood covering the range from dry to fully water-saturated

“…This is not necessarily correct as O-D stretching vibrations in cellulose, starch, and wood have been reported to be about 10% more intense than O-H stretching vibrations (Mann and Marrinan 1956b;Nara et al 1981;Thybring et al 2017). From theoretical calculations, O-D stretching vibrations are expected to be less intense than O-H stretching vibrations (Crawford 1952;Swenson 1965), in line with studies on liquid normal and heavy water showing 29% lower intensity for O-D stretching vibrations (Venyaminov and Prendergast 1997). Moreover, it should be noted, as discussed for gravimetric techniques, that deuteration will not exchange hydrogens on all hydroxyls interacting with water as shown by Lindh et al (2016), only those capable of acting as hydrogen bond donor, i.e.…”

Effective Pumping Proton Collection Facilitated by a Copper Site (CuB) of Bovine Heart Cytochrome c Oxidase, Revealed by a Newly Developed Time-resolved Infrared System

“…However, because of strong IR absorption of solvent water (12), IR measurements of proteins in aqueous solution (i.e. under physiological conditions) with sufficient sensitivity for analysis of IR spectral changes due to a single peptide CϭO band have remained technically challenging.…”

Communication: Salt-induced water orientation at a surface of non-ionic surfactant in relation to a mechanism of Hofmeister effect

“…Since the OD stretching vibrations are expected at around 2400-2800 cm −1 (Ref. 24) and the hydrogen-deuterium exchange is almost negligible in this case, 20 this observation clearly indicates that the negative Im[ χ (2) ] in the 3050-3450 cm −1 region from the samples with H 2 O solutions was originated from the OH stretching vibration in H 2 O molecules, and that the hydroxyl groups of the surfactant did not contribute to them. The negative Im[ χ (2) ] around 3050-3450 cm −1 in the SSP polarization combination indicates that water molecules at the surfactant monolayer orient with their hydrogen atoms pointing to the bulk 15 probably due to the Coulomb forces of the anions, while the water molecules are only weakly oriented without ions as indicated by the small signal amplitude.…”