| | 1 | 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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| default:Reihe_B/42/ZNB-1987-42b-0522.pdf | | | | Identifier
| ZNB-1987-42b-0522 | | | | Volume
| 42 | |
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