Synthesis, thermal analysis, IR spectrum and crystal structure of K2Th2(NO3)10·15H2O. Structural evolution of thorium nitrate complexes

Abstract The compound K 2 Th 2 (NO 3 ) 10 ·15H 2 O was synthesized, and its crystal structure was determined by X-ray diffraction analysis: space group P 1 ¯ ; a  = 10.3068(9), b  = 13.1642(11), c  = 13.9605(12) A, α  = 95.276(2)°, β  = 90.425(2), γ  = 92.749(2)°, Z  = 2; R  = 0.0379. Thermal conditions of decomposition of the compound are studied by differential scanning calorimetry and high-temperature X-ray powder. The compound was studied by IR spectroscopy and was assigned bands.