[en] Short note

[en] The paper deals with firstly the calculation of the direction of growth dislocation lines and the interpretation of the development of plastic defects observed in X-ray topographs, and secondly the characterization of as-grown crystals obtained by the forced-flux method. (orig.)

[en] The characteristics of HgIsub(2) single crystal grown by the vapour phase growing method, such as resistivity, Hall mobility, and carrier concentration, were investigated. It is found that HgIsub(2) single crystal grown by the vapour phase growing method has n-type. (Author)

[en] The excess of iodine in mercury(II) iodide crystals was determined by spectrophotometry. Dynamic dissolution of mercury(II) iodide samples in carbon tetrachloride allows the detection of minute amounts (<1 μmol mol^-1) of free iodine in the crystal. This method has a detection limit that is at least two orders of magnitude lower than for other methods for the determination of excess iodine. Many crystals grown under various iodine overpressure conditions were studied. The solubility limit of free iodine in mercury(II) iodine was found to about 130 μmol mol^-1 in the range 95-120degC. (author). 15 refs.; 1 fig.; 1 tab

[en] The deposition-stripping behavior of iodide films at the hanging mercury drop electrode (HMDE) is investigated. Surface monolayers of Hg . HgI and Hg₂I₂ are postulated based on the percentage occupancy of the available sites at the surface of the HMDE. Submonolayer films of Hg . HgI, as stripped from the electrode, are used to determine iodine concentrations from 1 to 50 ppb with a standard deviation of 0.3 ppb

No abstract available

[en] Blue-green luminescence excited by UV-radiation in Ag microcrystalline and threadlike salt specimens under simultaneously occuring photolysis of these salts is studied

[en] A process is described for the fabrication of monocrystals of alpha mercuric iodide. Alpha mercuric iodide and at least one dialkyl-sulfoxide are dissolved in an organic solvent, the molar ratio of the dialkyl-sulfoxide with respect to the solvent being between 0.01 and 0.1 mole of dialkyl-sulfoxide per solvent mole, and the molar ratio of the alpha mercuric iodide with respect to the dialkyl-sulfoxide being between 0.5 and 0.6 mole of alpha mercuric iodide per mole of dialkyl-sulfoxide. Alpha mercuric iodide monocrystals are grown from the solution

No abstract available

[en] The assembly reactions of 1,10-dithia-18-crown-6 (L) with mercury(II) and/or cadmium(II) salts provide metallosupramolecules with the unusual arrangement due to the formation of the mercury(II) halides (chloride and iodide) clusters which locate outside the macrocyclic cavity. In the reaction with mercury(II) chloride, we were able to isolate the 1D pseudo-coordination polymer 1 which resembles the ivy leaves. In 1, it is considered that the 1D zigzag array of Hg-Cl-Hg-Cl chain as a leaf-stem and the macrocyclic complexes as leaves. While, from the reaction of mercury(II) iodide and cadmium(II) iodide mixture, the discrete complex 2 with two macrocyclic cadmium(II) complex cation parts and one mercury(II) iodide cluster anion part was isolated. In both cases, each metal center is seven-coordinate, being bound to all the donors of L, with its seventh site being occupied by one halide atom, adopting a distorted monocapped trigonal prism