| | 1 | Author
| AnjaL. Oose, W. Illiam, S. Sheldrick | Requires cookie* | | | Title
| Quaternary Selenidogermanates(IV) A3[AgGe4Se10]*2H2O and A2[MnGe4Se10]*3H2O (A = Rb, Cs) with Open Framework Structures  | | | | Abstract
| Hydrothermal reaction of Ge and Se with Ag(CH3COO) in the presence of alkali metal carbonates affords the open framework selenidogermanates(IV) A^fAgGejSeiol ^H^O (A = Rb, Cs), 1 and 2, which contain corner linked adamantane-like Ge4Seio cages and AgSe4 tetrahedra. The analogous reaction with Mn(CHiCOO)2 yields the isostructural tetragonal compounds A2[MnGe4Seio]-3 H2 0 (A = Rb, Cs), 3 and 4. The cations are sited at a general position in the channels of the silver bridged anionic framework of 1 and 2 and exhibit a disordered pattern of occupation (s.o.f. = 0.75) with one of the two crystallographically independent water oxygen atoms 0 (2) (s.o.f. = 0.25). In contrast, the Rb+ cations in 3 are disordered over all three cation/oxygen sites, and the cation/water occupation pattern is fully reversed for the larger Cs+ cations in 4 in comparison to 1 and 2. | | | |
Reference
| Z. Naturforsch. 52b, 687—692 (1997); received March 13 1997 | | | |
Published
| 1997 | | | |
Keywords
| Selenidogermanates(IV), Silver, Manganese, Hydrothermal Synthesis, Framework Structure | | | |
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| default:Reihe_B/52/ZNB-1997-52b-0687.pdf | | | | Identifier
| ZNB-1997-52b-0687 | | | | Volume
| 52 | |
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