| | 1 | Author
| A. Nja-V, M. Erena, M. Udring, Artin Jansen | Requires cookie* | | | Title
| Darstellung und Kristallstruktur von Cs6Cl40 P rep aratio n and Crystal S tructure of Cs6Cl40  | | | | Abstract
| The solid state synthesis and the crystal struc ture of Cs6Cl40 (Pearson-code hR22, R3c, a = 1324.7(6), c -1658(1) pm, Z -6, 931 reflections with I0 > 2a(I), R\ = 0.040, wR2 = 0.114) are repor ted. The compound crystallises isotypically with Rb6Cl40 in the anti-K4CdCl6 type of structure. The structure consists of infinite chains of alterna ting face-sharing OCs6 octahedra and ClCs6 trigo nal prisms which are separated by chloride anions. The underlying structural concept and the ana logy to perovskites are outlined. | | | |
Reference
| Z. Naturforsch. 56b, 209—212 (2001); eingegangen am 2.November 2000 | | | |
Published
| 2001 | | | |
Keywords
| Cesium, Halide, Solid State Synthesis | | | |
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| default:Reihe_B/56/ZNB-2001-56b-0209_n.pdf | | | | Identifier
| ZNB-2001-56b-0209_n | | | | Volume
| 56 | |
| 2 | Author
| M. Artin Jansen | Requires cookie* | | | Title
| Rb8A 104Au3 = Rb5A 104 * 3RbAu - ein Aluminat-Aurid | | | | Abstract
| R b 8A 1 0 4A u3 = R b 5A 1 0 4-3RbAu -an A lu m in ate A uride A nja-V eren a M udring R b8A 1 0 4Au3 (Pearson-Code oP64, /*212121, a = 1043.4(1), b = 1296.7(2), c = 1320.2(2) pm, Z = 4, 809 reflections with IQ > 2a(I), Rj = 0.059, w R 2 = 0.151) is a further, completely new representative belonging to the group of composite alkali metal aurides. It consists of structural elem ents of alkali orthoaluminates and alkali aurides. Indeed, Rb8A 1 0 4Au3 is thus better represented by the formula Rb5A 1 0 4-3RbAu. | | | |
Reference
| Z. Naturforsch. 56b, 433—4 (2001); eingegangen am 14. Februar 2001 | | | |
Published
| 2001 | | | |
Keywords
| Alum inates, Aurides, Solid State Synthesis | | | |
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| default:Reihe_B/56/ZNB-2001-56b-0433_n.pdf | | | | Identifier
| ZNB-2001-56b-0433_n | | | | Volume
| 56 | |
| 3 | Author
| Florian Stadler, Thomas Fickenscher, Rainer Pöttgen | Requires cookie* | | | Title
| Synthesis and Structure of RE2Rh2Cd (RE = La, Ce, Pr, Nd, Sm) | | | | Abstract
| New intermetallic cadmium compounds /?£2Rh2Cd (r e = La, Ce, Pr, Nd, Sm) were syn thesized from the elements in sealed tantalum tubes in a high-frequency furnace. They were characterized through X-ray powder data: Mo2FeB2 type, space group P4/mbm, Z = 2. Single crystal data of the cerium compound (a = 762.8(1), c = 377.8(1) pm, wR2 = 0.0662, 199 F2 values, and 13 variable parameters) revealed small defects on the rhodium position leading to the composition Ce2R h186(3)Cd for the investi gated crystal. According to the course of the cell volumes Ce2Rh2Cd may be classified as a mixed-valent compound. The Ce2Rh2Cd structure is an intergrowth of slightly distorted A1B2 and CsCl related slabs of compositions CeRh2 and CeCd. Within the CeRh2 slab short Ce-Rh contacts (284-300 pm) are indicative of strong Ce-Rh bonding. The Rh-Rh distance within the A1B2 re lated slab is 289 pm. | | | |
Reference
| Z. Naturforsch. 56b, 1241—1244 (2001); received September 10 2001 | | | |
Published
| 2001 | | | |
Keywords
| Cadmium, Solid State Synthesis, Mixed Valence | | | |
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| default:Reihe_B/56/ZNB-2001-56b-1241_n.pdf | | | | Identifier
| ZNB-2001-56b-1241_n | | | | Volume
| 56 | |
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