The present experimental investigation was carried out in order to explore the possible thermodynamic and interactions studies of D(+) fructose with mixed solvent of aqueous alkali metal halides at different molalities and constant temperature. Experimental values of densities and ultrasonic velocities were carried out of the ternary mixture solution D(+)fructose with aqueous NaCl ,KCl , MgCl2 ...

Today, free-standing membranes, i.e. liposomes and vesicles, are used in a multitude of applications, e.g. as drug delivery devices and artificial cell models. Because current laboratory techniques do not allow handling of large sample sizes, systematic and quantitative studies on the impact of different effectors, e.g. electrolytes, are limited. In this work, we evaluated the Hofmeister effect...

Crystal Calorimetry in future high energy physics experiments faces a new challenge to maintain its precision in a hostile radiation environment. This paper discusses the effects of radiation damage in scintillating crystals, and concludes that the predominant radiation damage effect in crystal scintillators is the radiation induced absorption, or color center formation, not the loss of scintil...

The density, the electrolytic conductivity, and the viscosity of molten silver chloride doped with LiCl, KCl, CsCl, and BaCl2 have been measured in the concentration range 0 ^ xdopant — 0.1 and temperature range 740 K ^ Tm 900 K. The molar conductivity, A, decreases linearly with -̂ dopant•> the curve being independent of the charge of the added cation. Only in the case of LiCl is a very small i...

A ditopic receptor is shown to have an impressive ability to recognize and extract the ion pairs of various alkali halides into organic solution. X-ray diffraction analysis indicates that the salts are bound in the solid state as contact ion pairs. Transport experiments, using a supported liquid membrane and high salt concentration in the source phase, show that the ditopic receptor can transpo...

The anionic species (Al„ X 3 n + i w i t h X = CI or Br and n > 1 have been recognized for a number of years to form in acidic liquid mixtures of aluminium chloride or bromide with the corresponding halides of alkali or organic cations, in relative proportions which vary with the composition of the mixture. In this work we evaluate the structure and the energetics of such polymeric series in a ...

Evolutionary structure searches predict two hitherto unknown phases of KCl that are the most stable in the pressure regime of 200-600 GPa. I41/amd-KCl, which has the lowest enthalpy between ∼200-350 GPa, can be thought of as being composed of two three-connected nets. This structure can be compared with that of the Cs-IV electride (Cs(+)e(-)): the potassium ions assume the positions of the cesi...

The alkali halides interaction with d-ribose in D2O solutions was studied by 1H and 13C NMR spectroscopy. The observed changes in the NMR spectra are interpreted according to a model in which the hydroxyls rich region, from C1 to C4, interacts with the cation while the CH2 group at C5 on the opposite side of the sugar interacts with the anion. It seems, during the salt-sugar interaction, cation...

By means of molecular dynamics simulations with an all-atom force field, we investigated the affinities of alkali cations and halide anions for the dioleoylphosphatidylcholine lipid membrane in aqueous salt solutions. In addition, changes in phospholipid lateral diffusion and in headgroup mobility upon adding NaCl were observed using fluorescence spectroscopy. The simulations revealed that sodi...

The B–H bond length of the borohydride anion (BH4?) in alkali metal borohydrides MBH4 with M = Na, K, Rb, Cs, and diluted different halide matrices, was investigated experimentally by infrared spectroscopy (FTIR) theoretically using first principles calculations. peak positions IR absorption spectra NaBH4 pressed at 754 MPa halides NaX KX X Cl, Br, I show significant variations indicating ion e...