| | 2 | Author
| PeterG. Jones, Ralf Schelbach, Einhard Schwarzmann | Requires cookie* | | | Title
| Hydroxy Complexes of Gold 2. Calcium Aurates [1]  | | | | Abstract
| Two calcium aurate phases have been obtained as single crystals, phase 1 from H AUC1 4 + Ca(OH) 2 and phase 2 from NaAu(OH) 4 + Ca(C10 4) 2 . An X-ray structure determination of 1 shows its composition to be Ca 2 (0H) 3 (H 2 0) 4 [Au(0H) 4 ]. The apparent space group is Cmcm, but this corresponds to a sub-cell of the true structure. The disordered Cmcm structure was refined to R 0.032 for 813 reflections. The coordination geometry is square planar at gold (Au-O 1.97, 1.99 Ä), cubic at Ca(l) and octahedral at Ca(2). Phase 2 crystallizes in a primitive tetragonal cell with a 6.94, c 7.71 Ä; it is probably Ca[Au(OH) 4 ] 2 , but this has not yet been confirmed by a full structure determination. | | | |
Reference
| Z. Naturforsch. 42b, 522—524 (1987); received December 2 1986 | | | |
Published
| 1987 | | | |
Keywords
| Gold(III), Hydroxide, Calcium, Crystal Structure | | | |
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| | | | | TEI-XML for
| default:Reihe_B/42/ZNB-1987-42b-0522.pdf | | | | Identifier
| ZNB-1987-42b-0522 | | | | Volume
| 42 | |
| 3 | Author
| Cornelia Borgmann, Christian Limberg, Läszlö Zsolnai, Katja Heinze | Requires cookie* | | | Title
| Syntheses, Structures, and Spectroscopic Properties of Alkoxide, Hydroxide, and Siloxide Complexes with (r73-Allyl)Mo Moieties | | | | Abstract
| Salts with binuclear anions of the general formula [(?73-C3H4R)(CO)2Mo(^-OR')2(/i-OR")-Mo(CO)2(f?3-C3H4R) r (R = h , R',R" = Me, 2 ; R = CH3, R' = CH(CH3)2, R" = OH, 3; R = CH3, R' = OH, R" = OSiMe3, 4) have been synthesised via reaction of [(r/3-C3H4R)-Mo(CO)2(CH3CN)2(thf)]+BF4_ , 1, with NaOMe, NaO'Pr, and KOSiMe3. All products were characterised spectroscopically and investigated by single crystal X-ray analysis. In the case of 3 low temperature 2D-NMR spectra revealed that the solid state structure is maintained in solution and that the compound shows a trigonal twist-rearrangement at room temperature. | | | |
Reference
| Z. Naturforsch. 54b, 473—481 (1999); received October 28 1998 | | | |
Published
| 1999 | | | |
Keywords
| Molybdenum Complexes, Allyl, Alkoxides, Hydroxides, NMR Data | | | |
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| default:Reihe_B/54/ZNB-1999-54b-0473.pdf | | | | Identifier
| ZNB-1999-54b-0473 | | | | Volume
| 54 | |
| 4 | Author
| Gerhard Jäger, PeterG. Jones, GeorgeM. Sheldrick, Einhard Schwarzmann | Requires cookie* | | | Title
| Darstellung und Kristallstruktur von Antimon(V)oxidhydroxid HSb308 Preparation and Crystal Structure of the Antimony(V) Oxide Hydroxide HSb30g | | | | Abstract
| Colourless crystals of HSb3Os were prepared by hydrothermal methods from Sb205. The crystal structure [P2/n, a = 945.6(2), b = 869.1(2), c = 990.9(2) pm, ß = 90.25(2)°, Z = 6. R = 0.045] was determined from diffractometer measurements. Distorted SbOe octahedra are linked through vertices and edges to form a three-dimensional polymer of pseudo-orthorhombic symmetry. The hydrogen atoms could not be located. | | | |
Reference
| Z. Naturforsch. 38b, 698—701 (1983); eingegangen am 14. Februar 1983 | | | |
Published
| 1983 | | | |
Keywords
| Crystal Structure, Antimony(V), Oxide, Hydroxide, Hydrothermal Synthesis | | | |
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| default:Reihe_B/38/ZNB-1983-38b-0698.pdf | | | | Identifier
| ZNB-1983-38b-0698 | | | | Volume
| 38 | |
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