Synthesis and physicochemical properties of lead(2) hydroxyperrhenate

Lead (2) hydroxoperrhenate has been synthesized and investigated, using the methods of chemical, thermographical, thermogravimetric, X-ray diffraction phase, PMR and IR spectroscopic analyses. By means of thermal analysis it has been established, that the process of dehydration of basic lead perrhenate takes place according to the scheme: PbOHReO4→Pb2O(ReO4)2+H2O. On the basis of X-ray diffraction phase and IR spectroscopic methods of analysis the difference in the structure of PbOHReO4 and Pb2O(ReO4)2 is detected. Using PMR, quantitative content of hydroxyl groups in basic lead perrhenate is determined and it is shown, that interproton distapce for OH--groups equals 2.52+-0.12 A