In the title compound, C(20)H(30)N(2) (2+)·2Br(-)·2H(2)O, the asymmetric unit consists of half of the N,N'-dibenzyl-N,N,N',N'-tetra-methyl-ethylenediammonium cation lying across an inversion center, a bromide ion and a water mol-ecule of solvation. There is an eight-membered dibromide dihydrate ring, which is formed via hydrogen bonds of the type O-H⋯Br.

Halide ions could be visualized via fluorescence quenching in microcolumn ion chromatography. The fluorescence of quinine sulfate, which was contained in an acidic eluent, was quenched by halide ions. The observed fluorescence quenching values increased in this order: iodide, bromide, and chloride. The present detection system was relatively sensitive to halide ions except for fluoride: other a...

Since the dark ozonation of frozen NaCl/NaBr solutions is known to exhibit a (nonlinear) [O3] dependence (Oldridge and Abbatt, 2011), and the observed photochemical dihalogen production may be sensitive to the extent of bromide ion depletion and the gas phase concentration of the dihalogens themselves, the effect of [O3] on the photochemical dihalogen production was investigated in experiments ...

In the title complex, [CuBr(C(14)H(19)N(2)O(2))], the Cu(II) atom is coordinated by one phenolate O, one imine N and one amine N atom of the tridentate Schiff base ligand and by one bromide ion, resulting in a distorted CuBrN(2)O square-planar geometry, with the N atoms in a cis arrangement. The morpholine ring adopts a chair conformation.

The asymmetric unit of the title compound, [HgBr(2)(C(5)H(4)N(2)O(2))(2)]·2H(2)O, contains one half-mol-ecule and one water mol-ecule. The Hg(II) ion, lying on a twofold rotation axis, is four-coordinated by two N atoms of pyrazine-2-carboxylic acid ligands and two bromide ions, forming a highly distorted tetrahedral geometry. In the crystal structure, inter-molecular O-H⋯O and O-H⋯N hydrogen b...

The rate of hydrochloric acid production by isolated, bullfrog gastric mucosae depends critically on the supply of chloride ion to the serosal surface. Secretion of acid is negligible if chloride is completely replaced by glucuronate and gluconate ion. The experimental evidence indicates that the rate of acid secretion may be regarded as a reaction velocity, depending on chloride concentration ...