Abstract

The infrared spectra (4000-200 cm⁻¹) at 300 K and 95 K, and Raman spectra (4000-40 cm⁻¹) at 300 K and 130 K of the titled compounds are reported. A varying degree of deuteration has been used to assign the modes of water. Analysis of the spectra confirms the known structure that has one type of acetate ion and two types of water groups in the unit cell. H₂O(I) retains approximately C₂<i>v</i> symmetry while H₂O(II) is distorted to C_<i>s</i>.

Comparison of the frequencies of NH₃, CO₂, H₂O, N₂O, CO, and CH₄ as infrared calibration standards

Linda R. Brown and Robert A. Toth
J. Opt. Soc. Am. B 2(5) 842-856 (1985)

How the alternating degeneracy in rotational Raman spectra of CO₂ and C₂H₂ reveals the vibrational temperature

D. C. M. van den Bekerom, J. M. Palomares Linares, E. M. van Veldhuizen, S. Nijdam, M. C. M. van de Sanden, and G. J. van Rooij
Appl. Opt. 57(20) 5694-5702 (2018)

Carbon monoxide concentrations and temperature measurements in a low pressure CH₄–O₂–NH₃ flame

B. Rosier, P. Gicquel, D. Henry, and A. Coppalle
Appl. Opt. 27(2) 360-364 (1988)

N₂ and CO vibrational CARS and H₂ rotational CARS spectroscopy of CH₄/N₂O flames

Kenneth Aron, Leonce E. Harris, and Joanne Fendell
Appl. Opt. 22(22) 3604-3611 (1983)

Multispecies high-energy emitter for CO₂, CH₄, and H₂O monitoring in the 2  μm range

J. Barrientos Barria, D. Mammez, E. Cadiou, J. B. Dherbecourt, M. Raybaut, T. Schmid, A. Bresson, J. M. Melkonian, A. Godard, J. Pelon, and M. Lefebvre
Opt. Lett. 39(23) 6719-6722 (2014)