HoSb$_{2}$ Structure: AB2_oC6_21_a_k-002
| Prototype | HoSb$_{2}$ |
| AFLOW prototype label | AB2_oC6_21_a_k-002 |
| ICSD | 26220 |
| Pearson symbol | oC6 |
| Space group number | 21 |
| Space group symbol | $C222$ |
| AFLOW prototype command |
aflow --proto=AB2_oC6_21_a_k-002
--params=$a, \allowbreak b/a, \allowbreak c/a, \allowbreak z_{2}$ |
Other compounds with this structure
LuSb$_{2}$, YSb$_{2}$, DySb$_{2}$ (HT), GdSb$_{2}$ (HT), TbSb$_{2}$ (HT)
- Measurements were performed at a pressure of 65 kBar
- The primitive unit cell is nearly hexagonal
- The author states
We are well aware of the fact that the structure presented here may indeed be only a subcell of the true structure.
- HoSb$_{2}$ and Ta$_{2}$H share the same AFLOW prototype label, AB2_oC6_21_a_k. The structures are generated by the same symmetry operations with different sets of parameters (
--params) specified in their corresponding CIF files.
\[ \begin{array}{ccc}
\mathbf{a_{1}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}- \frac{1}{2}b \,\mathbf{\hat{y}}\\\mathbf{a_{2}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{1}{2}b \,\mathbf{\hat{y}}\\\mathbf{a_{3}}&=&c \,\mathbf{\hat{z}}
\end{array}\]
Basis vectors
| Lattice coordinates | Cartesian coordinates | Wyckoff position | Atom type | |||
|---|---|---|---|---|---|---|
| $\mathbf{B_{1}}$ | = | $0$ | = | $0$ | (2a) | Ho I |
| $\mathbf{B_{2}}$ | = | $\frac{1}{2} \, \mathbf{a}_{2}+z_{2} \, \mathbf{a}_{3}$ | = | $\frac{1}{4}a \,\mathbf{\hat{x}}+\frac{1}{4}b \,\mathbf{\hat{y}}+c z_{2} \,\mathbf{\hat{z}}$ | (4k) | Sb I |
| $\mathbf{B_{3}}$ | = | $\frac{1}{2} \, \mathbf{a}_{1}- z_{2} \, \mathbf{a}_{3}$ | = | $\frac{1}{4}a \,\mathbf{\hat{x}}- \frac{1}{4}b \,\mathbf{\hat{y}}- c z_{2} \,\mathbf{\hat{z}}$ | (4k) | Sb I |
References
- Q. Johnson, The Crystal Structure of High-Pressure Synthesized Holmium Diantimonde, Inorg. Chem. 10, 2089–2090 (1971), doi:10.1021/ic50103a059.
Found in
- M. N. Abdusaljamov, O. R. Burnashev, and K. E. Mironov, The Ho-Sb Alloy System, J. Less-Common Met. 102, L19–L22 (1984), doi:10.1016/0022-5088(84)90403-X.
Prototype Generator
aflow --proto=AB2_oC6_21_a_k --params=$a,b/a,c/a,z_{2}$