Ion-Solvent Interactions in Acrylonitrile Solutions of Some Tetraalkylammonium Halides Using FTIR Spectroscopy

Abstract

The FTIR spectra of tetrapentylammonium bromide (Pe 4 NBr), tetrapentylammonium iodide (Pe 4 NI), tetrahexylammonium bromide (He 4 NBr), tetrahexylammonium iodide (He 4 NI), tetraheptylammonium bromide (Hp 4 NBr), and tetraheptylammonium iodide (Hp 4 NI) in pure acrylonitrile were observed at 0.1(M), 0.08(M), 0.05(M), and 0.02(M) concentrations. The region of immobilized solvent resulting from the structure-making effects of electrostriction increases with increase in charge-surface ratio of the ions. Cation-anion interactions are thus investigated by evaluating the frequency shifts of the solvent in the pure state upon complexation with the salt.

Physico-chemical studies of sodium tetraphenylborate and tetrabutylammonium tetraphenylborate in pure nitrobenzene and nitromethane and their binaries probed by conductometry, refractometry and FT-IR spectroscopy

“…A band in the region 1348.2 cm À1 is obtained for symmetric stretching vibration The result obtained can be interpreted by the various types of interaction between the solvent molecules given in scheme 1. As soon as CH 3 NO 2 is added in PhNO 2 the dipole-dipole Table 5 Walden product (K o Á g) and Gibb's free energy change (DG°) of NaPh 4 increase in the H-bonding interaction between the PhNO 2 and CH 3 NO 2 molecules and also between CH 3 NO 2 molecules. The C-H stretching of the phenyl group of PhNO 2 almost remains the same in all the mass fraction of CH 3 NO 2 in PhNO 2 .…”

“…Conductance study is a very important tool in obtaining the information regarding the solvation and association behaviour of ions in solution. FT-IR spectroscopy has also been one of the most convenient methods for investigating the ion-solvent interactions in electrolytic solutions [2][3][4].…”

Conductance and FTIR Spectroscopic Study of Triple-ion Formation of Tetrabutylphosphonium Methanesulfonate in Methylamine Solution

“…The conductance data were reported at a frequency of 1 kHz and the accuracy of Infrared spectra were recorded in 8300 FTIR spectrometer (Shimadzu, Japan). The details of the instrument have already been previously described [13]. The concentration of the studied solutions used in the IR study is 0.05 M.…”

“…Thus owning to the effect of ternary association [22] the non-conducting species, Bu4PCH3SO3, removes some from the solution, and have been represented in Table 5. The KP value is utilized to calculate the inter ionic distance (aIP) parameter with the aid of the Bjerrum's theory of ionic association [15,16] in the form (13)…”

Investigation of Solution Behaviour of an Ionic Liquid in Diverse Cellosolves by Physicochemical Contrivance

“…Infrared Spectra of the pure solvents and IL in presence of pure solvents were recorded by 8300 FTIR spectrometer (Shimadzu, Japan).The details about this instrument discussed earlier [17].…”