The effects of compounds previously described to inhibit anion transport were tested for their ability to inhibit anion antiport in Vero cells as measured by uptake of 36Cl- by chloride self-exchange and as bicarbonate-linked uptake of 22Na+. While 4,4'-diisothiocyanostilbene-2,2'-disulfonic acid inhibited both processes, ethacrynic acid and probenecid selectively inhibited the uptake of 36Cl-....

Since Forbes and Davis reported the design of a class of phosphoniumand imidazolium ion-based ionic liquids (e.g. 1, Fig. 1A) equipped with a pendant acidic sulfonic acid moiety, interest in Brønsted acidic ionic liquids (BAILs) has gathered considerable pace. These materials afford the practitioner the flexibility of a system which combines strong acidity with the traditional advantages associ...

Electron transfer collisions between neutral K atoms and neutral, oriented trifluoroacetic acid molecules, CF(3)CO(2)H, are studied in crossed molecular beams at center of mass energies from 6 to 18 eV. An electron transfer produces a pair of ions with enough energy to escape the Coulomb attraction, and the ions are detected in separate time-of-flight mass spectrometers. The principle ions form...

Nitrophenols can be obtained in high yields via nitrosation-oxidation of phenols by 3methyl-1-sulfonic acid imidazolium chloride f[Msim]Clg as a new Br nsted acidic ionic liquid and NaNO2 at room temperature. In situ generation of HNO2 and a radical-cation mechanism via the nitrous acid catalyzed pathway appear to be applicable to phenol nitration using this reagent system.

Utilizing a purified basolateral plasma membrane vesicle (BLMV) preparation containing a sulfate/oxalate antiporter, it was demonstrated that sulfate exhibited similar binding characteristics to the transporter whether bound internally or externally. It was also demonstrated that oxalate had similar binding characteristics to the antiporter whether it was bound internally or externally. Oxalate...

On bases of previous observations on the band 3 anion exchange inhibition by the electrophilic reagent 1-fluoro-2,4-dinitrobenzene in resealed ghosts and a previously proposed band 3-based mechanism of control of the erythrocyte shape, it is suggested that stomatocytoses by 1-chloro-2,4-dinitrobenzene and other electrophilic reagents are due to an inhibition of the band 3 anion exchange by a co...

The title compound, {(C(6)H(11)N(2))[CrCl(3)]}(n), was generated via mixing of the ionic liquid 1-ethyl-3-methyl-imidazolium chloride with CrCl(2) in ethanol. Crystals were obtained by a diffusion method. In the crystal structure, the anion forms one-dimensional chains of chloride-bridged Jahn-Teller distorted chromium(II) centers extending along the [100] direction. The imidazolium cations are...

Density functional theory has been used to investigate the mechanism and kinetics of the liquid-phase, oxidative carbonylation of toluene to p-toluic acid (C7H8 + CO + /2O2 f p-C7H6COOH + H2O) catalyzed by Rh(III) cations. In toluene solution containing trifluoroacetic acid and dissolved CO, Rh(III) is coordinated to three trifluoroacetate (TFA) anions and two CO molecules as Rh(CO)2(TFA)3. The...