Abstract
The new compounds CsAu3S2, RbAu3Se2 and CsAu3Se2 were prepared by high temperature reactions. They are isostructural and crystallize in P`3m1, Z=1 with a=6.192(1)Ä, c=5.080(2)Ä for CsAu3S2, a=6.112(4)Ä, c=5.224(6)Ä for RbAu3Se2 and a=6.281(1)Ä, c=5.205(1)Ä for CsAu3Se2. Their crystal structures were determined by single crystal diffractometer data. They are characterized by the formation of corrugated chalcogenoaurate layers 2-oo-[Au3Q2](-) seperated by the alkali cations. Au is in a strictly linear coordination (d(Au-S) 2.32Ä, d(Au-Se) 2.450(7)Ä and 2.434(4)Ä respectively), the bond angles of the chalcogens are close to 80?. The shortest Au-Au distances (3.056(2)Ä) occur in the rubidium compound. The crystal structures are related to the CsCu3S2 type.
| Original language | English |
|---|---|
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| DOIs | |
| Publication status | Published - 1996 |
Fields of science
- 103040 Photonics
- 104 Chemistry
- 104003 Inorganic chemistry
- 104008 Catalysis
- 104011 Materials chemistry
- 104015 Organic chemistry
- 104016 Photochemistry
- 104021 Structural chemistry
- 106 Biology
- 106002 Biochemistry
- 106032 Photobiology
- 107002 Bionics
- 209001 Biocatalysis
- 209004 Enzyme technology
- 210002 Nanobiotechnology
- 210005 Nanophotonics
- 211908 Energy research
- 211915 Solar technology
- 301114 Cell biology
- 301305 Medical chemistry
- 301904 Cancer research