| Autor: |
Quint, Raimund, Boller, Herbert, Blaha, Herbert |
| Zdroj: |
Monatshefte für Chemie / Chemical Monthly; December 1986, Vol. 117 Issue: 12 p1387-1397, 11p |
| Abstrakt: |
Two different polytypic series (2s and 3s) of layered alkali and alkaline earth thiochromites of formulaMx(H2O)yCrS2 (x=0.2–0.4;y=0.18–0.5) were prepared by topotactic ion exchange in 2H- and 3R- Kx(H2O)yCrS2. The products were studied by TGA and X-ray diffraction techniques. Hydrates with monomolecular (hydrates I) and bimolecular (hydrates II) water layers between the CrS2 slabs were observed. In the 3s series the CrS2 layers are stacked according to 3R (Ib) (hydrates I) and 3R (Ia) (hydrates II) structures. In the 2s series the layer stacking leads to a 2H (Ib) structure and to a new orthorhombic 2 O structure. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink