Diethyl ether infrared spectroscopy

Spectroscopy data Infrared (proton [5830] grating [33038]), nuclear magnetic resonance (proton [6575] C-13 [2936]) and mass spectral data have been reported (Sadtler Research Laboratories, 1980 Lide Milne, 1996) Solubility Very soluble in water (954 g/L) and ethanol slightly soluble in benzene and diethyl ether (Lide Milne, 1996 Verschueren, 1996)... 

In ethanol, containing dissolved HCl, the formation of dichloro-cuprate(I) salts is even more favored than in aqueous solution (187). This would seem to be generally true for most weakly polar, organic solvents since the cuprate(I) complexes are extracted preferentially into diethyl ether (91), tributylphosphate (321, 347), or cyclohexanone (321). In the first two solvents the ions have been shown to be linear and centrosymmetric by infrared and Raman spectroscopy (91, 347). 

The compound C2H5MgCl (C2H5)20 was also studied in the liquid and crystalline state and in solution in diethyl ether by Kress and Novak, using infrared and Raman spectroscopy [4]. In the liquid state (300 K) and in the vitreous state (90 K), this monoetherate has a dimeric cyclic structure obtained through the formation of chlorine bridges (Fig. 2). The diethyl ether molecules are in a GG conformation. 

Infrared depletion spectroscopy suggests mode-specific vibrational d3mamics in the hydrogen-bonded aniline-diethyl ether (C6H5-NH2- -OC4HiO) complex ... 

Acidify the aqueous phase D, remaining after the removal of alcohols (see above) with concentrated hydrochloric acid and extract the liberated thioacid with diethyl ether. Liquid - liquid extraction for 4 hours produces more material, but shaking with 50 cm of diethyl ether for about 1 min normally gives enough extract for identification. Because of partial decomposition of the thioacid during the foregoing saponification, sulphides are produced and the above acidification and extraction should be carried out in a fiime cupboard. The ether extract can be evaporated to dryness on a water bath md examined by infrared or nuclear magnetic resonance spectroscopy or by both techniques, but, because of partial decomposition a better way of identification at least for the thioacid, is as follows ... 

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