Abstract
THE study of the Raman spectra of oxonium compounds is of interest for the elucidation of the nature of the oxonium bond. Such a study was made by Briegleb and Lauppe1, who investigated the spectra of mixtures of ethyl ether with hydrogen bromide and stannic chloride. However, their work does not give a clear and unequivocal answer to the question of the nature of such compounds. We have undertaken the study of the oxonium molecule (CH3)2O.HCl, which is known to exist even in the gaseous state. The equilibrium between methyl ether and hydrogen chloride has been studied in the vapour state with sufficient exactness2. It cannot be doubted, therefore, that (CH3)2O.HCl exists as an individual molecule. We have obtained for (CH3)2O in the liquid state, at 280° K., the following frequencies: 408 (2) (e,k); 921 (6d) (e,k,i) ; 1095 (1) (k) ; 1448 (2d) (e,k) ; 2813 (10) (e,k,q,p) ; 2868 (3) (e,k,i) ; 2908 (3) (e,k,q) ; 2947 (2) (e,k,q) ; 2988 (6) (e,k,q,p).
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References
Briegleb and Lauppe, Z. Phys. Chem., B, 28, 154 (1935).
Maas and Morrison, J. Amer. Chem. Soc., 45, 1675 (1923). Jitaro Shidei, Mem. Coll. Sci. Kyoto Imp. Univ., A, 9, 99 (1925).
Kohlrauseh, Monats. Chem., 68, 349 (1936).
Latimer and Rodebush, J. Amer. Chem. Soc., 42, 1419 (1920). Bernal and Megaw, Proc. Roy. Soc., A, 151, 384 (1935).
Salant and Callihan, J. Chem. Phys., 2, 317 (1934).
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WOLKENSTEIN, M., SYRKIN, J. Raman Spectra of Oxonium Compounds. Nature 139, 288–289 (1937). https://doi.org/10.1038/139288b0
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DOI: https://doi.org/10.1038/139288b0
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