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Synthesis, Crystal Structure, and Thermal Behavior of Pr(ClO3)3 · 2 H2O

✍ Scribed by Mathias S. Wickleder

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
80 KB
Volume
625
Category
Article
ISSN
0372-7874

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✦ Synopsis

Single crystals of Pr(ClO 3 ) 3 ´2 H 2 O have been obtained from the reaction of Pr 2 (CO 3 ) 3 ´x H 2 O and HClO 3 . The crystal structure (orthorhombic, P2 1 2 1 2 1 , Z = 4, a = 576.03(7), b = 1236.7(2), c = 1314.0(2) pm) contains Pr 3+ ions coordinated by two H 2 O molecules and seven ClO 3 ± groups. According to DTA/TG measurements, Pr(ClO 3 ) 3 2 H 2 O decomposes in a two step mechanism with Pr(ClO 3 ) 3 as an intermediate and PrOCl as the final product. The decomposition has also been investigated by means of temperature dependent X-ray powder diffraction.

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