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Synthesis, Crystal Structure, and Thermal Behavior of Pr(ClO 3 ) 3 · 2 H 2 O
Author(s) -
Wickleder Mathias S.
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199911)625:11<1771::aid-zaac1771>3.0.co;2-i
Subject(s) - orthorhombic crystal system , thermal decomposition , crystallography , crystal structure , molecule , decomposition , powder diffraction , materials science , ion , single crystal , chemistry , organic chemistry
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.