| | 1 | Author
| H. Arald Hillebrecht, G.Erhard Thiele, Alrik Koppenhöfer, Heinrich Vahrenkamp | Requires cookie* | | | Title
| Kristallstruktur und Schwingungsspektren von Zn(NH 3)4(C104)2 Crystal Structure and Vibrational Spectra of Zn(N H 3)4(C104)2  | | | | Abstract
| The title compound Z n (N H 3)4(C104)2 crystallizes in the space group F 43m with a = 10.240(1) A. The crystal structure consists of tetrahedral Z n (N H 3)4 cations and two non equivalent C 104 anions with crystallographic Td symmetry. The complex ions constitute an arrangement which is known from the Zintl phase M gAgAs. The Z n(N H 3)4 cations are ccp packed with perchlorate anions in octahedral and tetrahedral voids. W hereas the C 104 ions centered at tetrahedral holes do not interact with the other lattice components, the perchlo rate ions in the octahedral voids are connected with the ammine ligands by a hydrogen bonded three-dimensional network involving all their N, H, and O atoms. The repeating unit of this network is a N40 4(m-H)12 cube with N -H = 1.19(2)A and O -H = 1.98(2)A . Raman and IR spectra were recorded between 150 and 4000 cm -1. A ll the expected internal m odes of the com plex ions could be detected and assigned. The crystallographically different C 104 anions have nearly the same vibrational spectra, only a slight splitting o f two IR m odes is observed. | | | |
Reference
| Z. Naturforsch. 49b, 1163—1168 (1994); eingegangen am 25. März 1994 | | | |
Published
| 1994 | | | |
Keywords
| Zinc Am m ine, Perchlorate, Cubic Structure, Hydrogen Bonds, Vibrational Spectra | | | |
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| default:Reihe_B/49/ZNB-1994-49b-1163.pdf | | | | Identifier
| ZNB-1994-49b-1163 | | | | Volume
| 49 | |
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