| | 1 | Author
| Alexandra Atzesdorfer, Klaus-Jürgen Range | Requires cookie* | | | Title
| Sodium Metaperrhenate, N aR e04: High Pressure Synthesis of Single Crystals and Structure Refinement  | | | | Abstract
| Single crystals of sodium metaperrhenate, N a R e 0 4, have been obtained by oxidation of rhe nium metal with sodium nitrate under high pres sure-high temperature conditions (m odified Belt-type apparatus, 4 kbar, 400 °C, Au-capsules). The crystals are tetragonal, space group 14^0, with a = 5.3654(4), c = 11.732(2) A and Z = 4. The struc ture was refined to R -0.026, Rw = 0.013 for 382 unique, absorption-corrected reflections. The scheelite-type structure for N a R e 0 4, pro posed by Beintema in 1937, could be confirmed. It consists of isolated R e 0 4 tetrahedra (R e -O = 1.728(2) A), connected by N aO s dodecahedra (< N a -0 > = 2.582(2) Ä). | | | |
Reference
| Z. Naturforsch. 50b, 1417—1418 (1995); received April 24 1995 | | | |
Published
| 1995 | | | |
Keywords
| Sodium Metaperrhenate, Single Crystals, High Pressure Synthesis, Structure Refinem ent | | | |
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| ZNB-1995-50b-1417_n | | | | Volume
| 50 | |
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