Intercalation and formation of complexes in the system of lead(II) iodide-ammonia |
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Authors: | G.I Gurina |
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Affiliation: | a Department of Polymeric Composite Materials, National Technical University “KhPI,” Kharkov 61002, Ukraineb Institute for Low Temperature Physics and Engineering, The National Academy of Sciences of Ukraine, Kharkov 61103, Ukraine |
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Abstract: | Interaction between lead(II) iodide and ammonia was studied with the help of an X-ray in situ analysis, DTA-TG analysis, DSC measurements and IR spectroscopy. A two-stage mechanism of the reaction was defined. At the first stage of the reaction two phases with trigonal symmetry and a phase with monoclinic symmetry are developed. At the second stage of the reaction the structure changes lead to formation of a compound with orthorhombic symmetry. The results were discussed along with the data of thermal analysis and IR spectroscopy. The value of enthalpy of formation for the compound PbI2(NH3)4 was determined. |
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Keywords: | Lead(II) iodide Ammonia Intercalation Complex |
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