as surfactants enhance the membrane transport of organic compounds, it has to be assumed that they decisively influence the absorption of pollutants from house dust. sampling sites for the surfactant analysis include housing areas, each location of which has different surroundings such as rural, urban, construction, and industrial area. three stations had been selected for each housing area and...

to find the nutritional condition of plants as related to the tatus of soil nutrients, also for an evaluation of soil solution toxicity and nutrition of plants in salt affected soils, it is preferred to study the activity of these elements rather than their concentrations. to calculate the ionic strength of a solution the concentrations of all cations and anions are needed which is very time co...

Abstract Alkylarenes are readily functionalized via the corresponding benzylic anions. Benzylic anions have been used for a range of catalytic reactions, including Ni-catalyzed dehydrogenation. Interestingly, employment Zn(TMP)2 slow and incomplete deprotonation position was observed. This manuscript describes preliminary investigation into heteroarenes its relationship to

Pale violet, plate-like single crystals of the title compound, neodymium(III) oxide chloride oxotellurate(IV) Nd5O4Cl3[TeO3]2, can be obtained by the reaction of Nd2O3 with NdCl3 and TeO2 in equimolar ratios in evacuated silica ampoules within five days at 775 ◦Cwith an excess of CsCl added as fluxing agent. Nd5O4Cl3[TeO3]2 crystallizes in the monoclinic space group C2/m (no. 12) with the latti...

The asymmetric unit of the title salt, C(7)H(10)N(+)·C(8)H(5)O(4) (-), consists of two 3-methyl-phenyl-ammonium cations and two hydrogen phthalate anions. There are strong intra-molecular O-H⋯O hydrogen bonds in the virtually planar (r.m.s. deviations = 0.054 Å) phthalate anions. In the crystal, the cations and anions are connected via an extensive sytem of N-H⋯O hydrogen bonds into a corrugate...

An on-column enrichment method was developed for the rapid determination of inorganic anions in natural water. The system was assembled from a syringe pump, a six-port switching valve with a sample-enrichment loop, a separation column and a UV detector. The enrichment efficiency of the system was tested by using inorganic anions as samples. The limits of detection were between 0.6 and 7.7 micro...

In the title compound, (C(7)H(10)N)(3)[SbCl(5)]Cl, the Sb(III) cation is coordinated by five Cl(-) anions in a distorted square-pyramidal geometry, in which the longest Sb-Cl distance of 3.0319 (14) Å indicates a weak coordination bond. In the crystal, the 3-methyl-anilinium cations link with the complex antimonate anions and Cl(-) anions via N-H⋯Cl hydrogen bonds.

The crystal structures of three salts of anionic 5-aminotetrazole are described. The tetramethylammonium salt (P[Formula: see text]) forms hydrogen-bonded ribbons of anions which accept weak C-H⋯N contacts from the cations. The cystamine salt (C2/c) shows wave-shaped ribbons of anions linked by hydrogen bonds to screw-shaped dications. The tetramethylguanidine salt (P21/c) exhibits layers of an...

The title mol-ecular salt, C8H12N(+)·C4H3O4 (-), crystallized with two independent cations and anions in the asymmetric unit. The ethanaminium side chains of the cations exhibit anti conformations [C-C-C-N torsion angles = 176.5 (3) and -179.4 (3)°]. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds connect adjacent anions and cations, and , O-H⋯O hydrogen bonds connect adjacent anions, generating...