Synthesis and crystal chemistry of Pb(SeO3)2 and two modifications of Sn(SeO3)2
- Author(s)
- Georg Steinhauser, Christoph Luef, Manfred Wildner, Gerald Giester
- Abstract
Single crystals of two modifications of Sn(SeO3)2 have been synthesized from SnCl2, SeO2 and H2O at low-hydrothermal conditions (T = 490 K), tiny crystals of Pb(SeO3)2 were precipitated at T = 363 K from solutions of SeO2 (aq.) and Pb(CH3COO)4 in pure acetic acid. The structures were determined from CCD X-ray diffraction data and refined to R1 = 0.019, 0.029 and 0.045, respectively. a-Sn(SeO3)2: space group P a over(3, ¯), a = 8.1725(5) A°, V = 545.84(6) A°3, Z = 4. ß-Sn(SeO3)2 and Pb(SeO3)2: space group P21/c, a = 4.784(1)/4.811(2), b = 8.529(1)/8.768(4), c = 6.943(1)/7.079(3) A°, ß = 111.01(1)/110.10(2)°, V = 264.43(7)/280.4(2) A°3, Z = 2. ß-Sn(SeO3)2 and Pb(SeO3)2 crystallize isotypic in a structure type known from Ti(SeO3)2, while a-Sn(SeO3)2 is structurally related to Me2+(NO3)2 compounds. Both structure types are built from Me4+O6 (Me = Sn, Pb) octahedra, which are interlinked by trigonal pyramidal SeO3 groups via common corners to framework structures. Œ 2005 Elsevier B.V. All rights reserved.
- Organisation(s)
- Department of Functional Materials and Catalysis, Department of Mineralogy and Crystallography
- External organisation(s)
- Technische Universität Wien
- Journal
- Journal of Alloys and Compounds
- Volume
- 419
- Pages
- 45-49
- No. of pages
- 5
- ISSN
- 0925-8388
- Publication date
- 2006
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104011 Materials chemistry, 1051 Geology, Mineralogy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/46afada5-b34c-46dc-80fb-5a55640888a4