Abstract
The new compound K4Au6S5 was prepared by reacting a corresponding mixture of potassium sulphide, gold and sulphur at 600?C. Green-yellow crystals were obtained by cooling the melt slowly. The crystal structure was determined from four-circle diffractometer data and refined to a conventional R of 0.037 for 342 observed reflections. K4Au6S5 crystallizes in the space group P-62c with a=9.631(3)Ä, c=9.856(4)Ä and Z=2.
The crystal structure is characterized by anionic [Au6S5] groups, stacked along [001] in hexagonal close-packed sense. They are built up from trigonal bipyramides of sulphur atoms, upon whose skew edges lie the gold atoms, so forming a trigonal prism. The coordination of the gold atoms is almost linear. The Au-Au distances within and between the [Au6] units show weak interactions of the atoms with d10 configuration.
| Original language | German (Austria) |
|---|---|
| Number of pages | 8 |
| Journal | Journal of the Less Common Metals |
| Publication status | Published - Jul 1987 |
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
