THE INFRARED SPECTRA OF HDO IN IONIC SOLUTIONS

Abstract

The infrared spectra of HDO in $H_{2} O$ and $D_{2} O$ solutions saturated with metal halides were investigated in the region from $1200-8000 cm^{-1}$. The effect of hydrogen bonding with various ions present on the fundamental and overtone vibrations of the OH and OD bonds was measured. The dependence of frequency shift and anharmonicity on ionic species and H bond energy was investigated. It is shown the vibrational frequency of the OH or OD vibration decreases with decreasing anion size, and the vibrational anharmonicity is nearly independent of the presence of ions.