A STUDY OF HYDROGEN-BONDING BETWEEN DIMETHYL ETHER AND HYDROGEN HALIDES IN SOLID PHASE

Spectra have been recorded of adducts of dimethyl ether with hydrogen chloride, bromide and iodide, and deuterium chloride and bromide, in the solid state. From the position and contour of the band assigned to the H-X stretching frequency it was concluded that the adducts are formed by hydrogen-bonding Me2O ⋯ HX and not by proton transfer to give [Me2OH]+X-. With all the hydrogen halides, characteristic absorption bands were observed at about 1020 and 800 cm-1 and these have been assigned to the O ⋯ HX torsional modes of the adduct, coupled to some degree with skeletal modes of the ether. © 1969.