SrCl2 · 1/2 H2O und SrCl2 · H2O Röntgenographische,thermoanalytische, Raman- und IR-spektroskopische Untersuchungen |
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| Authors: | H D Lutz B Frischemeier Ch Mertins W Becker |
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| Abstract: | SrCI2 · 1/2 H2O and SrCl2 · H2O. X-ray, Thermalanalytical, Raman, and I. R. Data The formation of the new compound SrCI2 · 1/2 H2O was detected with help of high-temperature X-ray and high-temperature Raman measurements. Strontium chloride hemihydrate was prepared by dehydration of the higher hydrates in a water-vapour atmosphere of 1 bar at 165 °C. The Course of dehydration of SrCI2 · 6 H2O, and SrCI2 · 2 H2O is discussed. X-ray, i.r.-and Raman data of SrCI2 · 1/2 H2O and SrCl2 · H2O are reported. SrCI2 · H2O crystallizes ortho-rhombic in the BaCI2 · H2O type (space group Pnma) with a = 1088.1(1), b = 416.2(1), and c = 886.4(1) pm. The water modes of the hydrates as well as the force constants and bond energies of the hydrogen bridges are discussed. |
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