02047nas a2200193   4500008004100000022001400041245010300055210006900158260007100227300001400298490000800312520131400320100001801634700002201652700001801674700001601692700001501708856013001723       2010                        eng d  a1520-610600aMeasurements and molecular interactions for N,N-dimethylformamide with ionic liquid mixed solvents0 aMeasurements and molecular interactions for NNdimethylformamide   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAY  a6126-61330 v1143 a<p>To understand the molecular interactions between N,N-dimethylformamide (DMF) with two families of ionic liquids (ILs), we have measured thermophysical properties such as densities (rho) and ultrasonic sound velocities (a) over the whole composition range at 25 degrees C under atmospheric pressure. The excess molar volume (V(E)) and the deviation in isentropic compressibilities (Delta K(s)) were predicted using these properties as a function of the concentration of IL. These results are fitted to the Redlich-Kister polynomials. The materials investigated in the present study included two families of ILs such as ammonium salts and imidazolium salts. Diethylammonium acetate ([Et(2)NH][CH(3)COO], DEAA), triethylammonium actetate ([Et(3)NH][CH(3)COO], TEAA), triethylammonium dihydogen phosphate ([Et(3)NH][H(2)PO(4)], TEAP), and triethylammonium sulfate ([Et(3)NH][HSO(4)], TEAS) are ammonium salts and l-benzy1-3-methylimidazolium chloride (Bmiml[Cl]) belongs to the imidazolium family. The intermolecular interactions and structural effects were analyzed on the basis of the measured and the derived properties. A qualitative analysis of the results is discussed in terms of the ion dipole, ion-pair interactions, and hydrogen bonding between ILs and DMF molecules and their structural factors.</p>1 aAttri, Pankaj1 aReddy, Madhusudan1 aVenkatesu, P.1 aKumar, Anil1 aHofman, T.  uhttps://library.ncl.res.in/content/measurements-and-molecular-interactions-nn-dimethylformamide-ionic-liquid-mixed-solvents-0