STRONG HYDROGEN-BONDS IN ACID SELENITES - CORRELATION OF INFRARED SPECTROSCOPIC AND STRUCTURAL DATA

Several hitherto unknown acid selenites of divalent metals have been p repared and characterized by means of infrared spectroscopy and X-ray structure determination. The relations between the O-H...O stretching and bending vibrations and the O-H...O distances of the strongly hydro gen-bonded hydroxyl groups of these compounds and of some other acid s elenites are presented. They are discussed with respect to the nature of the ABC trio-bands in the nu(OH) stretching mode region of strongly hydrogen-bonded systems.