| | 1 | Author
| Werner Urland, Helmut Person | Requires cookie* | | | Title
| Zur Kristallstruktur von Ho2Se3 On the Crystal Structure of Ho2Se3  | | | | Abstract
| Starting from HoSe2_ t powder and holmium metal bright brownish-yellow, plate-like single crystals of Ho2Se3 could be prepared by chemical transport with A1C13. Holmium sesquiselenide crystallizes in the Sc2S3-type structure, space group Fddd, with lattice constants a = 1140,7(2), b -812,6(1) and c = 2423,9(3) pm. | | | |
Reference
| Z. Naturforsch. 53b, 900—902 (1998); eingegangen am 9. April 1998 | | | |
Published
| 1998 | | | |
Keywords
| Holmium Sesquiselenide, Chemical Transport, Crystal Structure | | | |
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| default:Reihe_B/53/ZNB-1998-53b-0900.pdf | | | | Identifier
| ZNB-1998-53b-0900 | | | | Volume
| 53 | |
| 3 | Author
| H. Oppermann, H. Dao Quoc, A. Morgenstern, Prof Manfred | Requires cookie* | | | Title
| Thermisches Verhalten von festem LaAlCl6 und chemischer Transport von LaCl3 mit AICI3 Thermical Behaviour of Solid LaAlCl6 and Chemical Transport of LaCl3 with A1C13 | | | | Abstract
| The thermodynamical data of solid aluminium lanthanum chloride LaAlCl6 have been ob tained by determination of the decomposition equilibria from total pressure measurements. The melting diagram was determined by DTA. The chemical transport of LaCl3 with A1C13 is suggesting the existence of the gaseous complex LaAl3C l12. The data are: Z\H(LaAlCl6 f 298) =-427,1 ±2,5 kcal/mol, S°(LaAlCl6.f.298) = 61 ±2,5 cal/K-mol, _AH(LaAl3C l12 g 298) =-712 ± 7 kcal/mol, S°(LaAl3C l12>g,298) = 205 ± 3 cal/K-mol. | | | |
Reference
| Z. Naturforsch. 54b, 1410—1416 (1999); eingegangen am 15. Juli 1999 | | | |
Published
| 1999 | | | |
Keywords
| Aluminium Lanthanum Chloride, Thermal Decomposition, Chemical Transport, Enthalpy, Entropy | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1410.pdf | | | | Identifier
| ZNB-1999-54b-1410 | | | | Volume
| 54 | |
| 4 | Author
| Herbert Brunner, Reginald Gruehn, Wilhelm Mertin | Requires cookie* | | | Title
| an FeNblx029, FeNb29074 und TiNb14037 Contributions to the Study of Inorganic Non-Stoichiometric Compounds, V* Preparation and Electron Optical Investigation of FeNbn029, FeNb29 0 74 and TiNb14037 | | | | Abstract
| FeNbn029(m), FeNbn029(o) and two mixed oxides with the composition limits FeNb29074 and TiNbi4037 were prepared by chemical transport. The crystal structures of the compounds have been examined by two-dimensional high resolution electron-micro-scopy. They are composed of 'blocks' of (n x 3) corner shared octahedra and belong to a series of structure related compounds with the general formula Me3nOsra-3-Crystallo-graphic defects and the thermic behavior of the materials are discussed. | | | |
Reference
| (Z. Naturforsch. 31b, 549—553 [1976]; eingegangen am 5. Januar 1976) | | | |
Published
| 1976 | | | |
Keywords
| Iron-niobium-oxides, Titan-niobium-oxides, Chemical Transport, Crystal Structures, High Resolution Electron Microscopy | | | |
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| default:Reihe_B/31/ZNB-1976-31b-0549.pdf | | | | Identifier
| ZNB-1976-31b-0549 | | | | Volume
| 31 | |
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