Showing papers in "Journal of Molecular Liquids in 1991"

TL;DR: Using time domain reflectometry technique dielectric study has been carried out in the thirteen different mixtures of aqueous solutions of N,N-Dimethylacetamide (DMA).

TL;DR: In this article, the non-resonant part of the static non-linear susceptibility χ(3)1212 (ω 1,−ω1,o,o) in acetonitrile, benzaldehyde, acetophenone, acetone, ethyl methyl ketone, o-nitrotoluene, nitrobenzene, and benzoylchloride are reported.

TL;DR: In this article, the complex (dielectric) permittivity has been measured as a function of frequency between 100 kHz and 40 GHz and of the molar ratio between 0 and 1 for binary mixtures of the following liquids: acetone, dimethyl sulfoxide, and isopropanol.

TL;DR: Les mesures de diffusion incoherente quasi elastique de neutrons fournit une duree pouvant etre interpretee comme la Duree de vie de liaisons hydrogenes, si ce temps peut etre associe a des mouvements de libration de great amplitudes as mentioned in this paper.

TL;DR: Theoretical evaluation of sound velocity, using Nomoto's relation, Schaaff's collision factor theory (CFT), Jacobson's free length theory (FLT), and ideal mixing relation due to Van Deal and Vangeel have been made in binary mixtures of benzene, toluene, aniline, monochlorobenzene, methanol, ethanol, acetone with the highly polar nonassociated DMSO as common solvent as discussed by the authors.

TL;DR: In this article, a simple two-phase aqueous solution model based on the idea of overlapping water hydration shells is proposed to interpret the idea and a simple dependence of the size and the compressibility of the relevant shells or the ionic radii.

TL;DR: In this article, the dc Kerr response and the pretransitional behavior in (p-ethoxybenzylidine)-p-butyl aniline (EBBA) liquid crystal mixtures at temperatures above nematic to isotropic transition temperature were investigated.

TL;DR: In this paper, aqueous systems for which measurements of the complex electric permittivity (103 Hz ≤ ν ≤ 1011 Hz) and of the attunation coefficient of acoustic waves (105 Hz ≤ ≥ 3·109 Hz) had been recently performed over a broad range of frequencies ν.

TL;DR: In this article, the dipole moments of some mono-, di- and penta-substituted ferrocenes as solutes in cyclohexane have been determined by a standard microwave dielectric loss technique.

TL;DR: In this article, experimental observations of the variation of Kerr constant in five binary liquid mixtures of acetonitrile in benzene, toluene, nitrobenzene, chlorobenzene and o-nitrotoluene with different molar fractions were reported.

TL;DR: In this paper, the authors explore the contribution of chemical (site-site) exchange to these band shapes and for most situations find it to be small, at least within the classical (two-body) framework of equilibrium between complexed and uncomplexed iodine.

TL;DR: In this article, the excess molar volumes, η E, isentropic compressibilities, and viscosities of mixing for the binary liquid mixtures of furfural with acetone, 2-butanone, and 2-pentanone over the entire composition range have been determined and reported.

TL;DR: In this article, the Grote-Hynes theory is applied to the rate constant of barrier crossing reaction in solution and the influence of an internal vibrational degree of freedom for a molecular solvent on this friction is examined via a collisional model, and the consequences are assessed.

TL;DR: In this paper, it is suggested that these transfers of protons in neutral media at pH=7, are of a different nature than those which are responsible of proton conduction, and are well known in electrochemistry.

TL;DR: In this article, the S 0 − S 1 absorption of thionine at 16,700 cm−1 was studied by fluorescence, absorption, and thermal lens spectroscopy in water and methanol solutions.

TL;DR: In this paper, a study of the concentration and solvent effects on IR and 1H NMR spectra of quinoline-trifluoroacetic acid complex (Q.TFA) is presented.

TL;DR: In this paper, the authors present new results on the liquid and solid fluocarbons CMF3 with M = H, F, Cl, Br, CH3, and CF3.

TL;DR: In this paper, the hydration properties of Ni(ClO4)2, Mg(C4O4), Ni(CF3SO3)2 and Ni(C2SO3), as probed by the HDO molecule in hydration spheres of the ions, were studied in both the OD and OH stretching regions.

TL;DR: In this paper, a model for the study of the interaction mechanisms among the electric dipoles of a monolayer is presented, where each dipole is assumed to interact with a limited number of other dipoles, constituting a "cellular array".

TL;DR: In this article, the density profile of a polar fluid near an uncharged wall decays as A/z 3 when the distance z to the wall becomes very large, this behavior is due to the existence of image forces.

TL;DR: In this article, a non-Markovian theory of dielectric relaxation in liquids that take due account of effects of the inertia of the polar molecules is discussed, and their implications for the absorption spectrum are studied.

TL;DR: In this paper, the effect of dilution in carbon tetrachloride on the far-infrared spectra 5-150 cm −1 ) of N-methyl formide has been investigated over the whole miscibility range.

TL;DR: In this paper, the dielectric loss was measured in the frequency range from o.1 GHz to 670 GHz and analyzed in several Debye and Frohlich terms and the results are discussed.

TL;DR: In this article, the high frequency dielectric permittivity is studied as a measure of orientational-translational coupling across the nematic-smectic A (NA) transition in the binary mixtures of N(p-n-alkoxybenzylidene)p -nalkylaniline (nO.m) compounds viz..40.6/60.4.

TL;DR: In this paper, the permittivity of the following mixtures has been measured at 20°C between 30 MHz and 72 GHz: PEG 400 with toluene or pEG 400 dimethylether (PEGDM); PEG 200 with ethyleneglycolmonomethylether, ethylenedlycol, ethanol, methanol or water.

TL;DR: In this article, the Raman isotropic υ 1 band of CH 4 diluted in CD 4 has been studied along numerous isochoric lines 0.2 p/p −3 c )/T c −1.

TL;DR: In this article, the concept of electron spin polarisability was introduced and its existence can be tested experimentally by a theoretically predicted laser induced analogue of the anomalous Zeeman effect and electron spin resonance.

TL;DR: In this paper, the Cole-Cole distribution of dielectric relaxation times of CH 2 Cl 2 at 293 K has been measured at frequencies in the range 50-310 GHz.

TL;DR: In this paper, the Kerr constant has been measured in four binary systems of acetonitrile in acetophenone, benzaldehyde, ethyl methyl ketone and acetone, and the observed non-additive nature of Kerr constant with molar fraction was found in good agreement with the mean field theory.