Encyclopedia of Crystallographic Prototypes

AFLOW Prototype: A6BC2_hP9_164_i_a_d-001

This structure originally had the label A6BC2_hP9_164_i_a_d. Calls to that address will be redirected here.

If you are using this page, please cite:
D. Hicks, M.J. Mehl, M. Esters, C. Oses, O. Levy, G.L.W. Hart, C. Toher, and S. Curtarolo, The AFLOW Library of Crystallographic Prototypes: Part 3, Comp. Mat. Sci. 199, 110450 (2021). (doi=10.1016/j.commatsci.2021.110450)

Links to this page

https://aflow.org/p/2HX1
or https://aflow.org/p/A6BC2_hP9_164_i_a_d-001
or PDF Version

K$_{2}$GeF$_{6}$ (J1$_{13}$) Structure: A6BC2_hP9_164_i_a_d-001

Picture of Structure; Click for Big Picture
Prototype F$_{6}$GeK$_{2}$
AFLOW prototype label A6BC2_hP9_164_i_a_d-001
Strukturbericht designation $J1_{13}$
ICSD 24026
Pearson symbol hP9
Space group number 164
Space group symbol $P\overline{3}m1$
AFLOW prototype command aflow --proto=A6BC2_hP9_164_i_a_d-001
--params=$a, \allowbreak c/a, \allowbreak z_{2}, \allowbreak x_{3}, \allowbreak z_{3}$

Other compounds with this structure

(NH$_{4}$)$_2$GeF$_{6}$,  Cs$_{2}$CeCl$_{6}$,  K$_{2}$PtF$_{6}$,  K$_{2}$SiF$_{6}$


\[ \begin{array}{ccc} \mathbf{a_{1}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}- \frac{\sqrt{3}}{2}a \,\mathbf{\hat{y}}\\\mathbf{a_{2}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{\sqrt{3}}{2}a \,\mathbf{\hat{y}}\\\mathbf{a_{3}}&=&c \,\mathbf{\hat{z}} \end{array}\]

Basis vectors

Lattice coordinates Cartesian coordinates Wyckoff position Atom type
$\mathbf{B_{1}}$ = $0$ = $0$ (1a) Ge I
$\mathbf{B_{2}}$ = $\frac{1}{3} \, \mathbf{a}_{1}+\frac{2}{3} \, \mathbf{a}_{2}+z_{2} \, \mathbf{a}_{3}$ = $\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{\sqrt{3}}{6}a \,\mathbf{\hat{y}}+c z_{2} \,\mathbf{\hat{z}}$ (2d) K I
$\mathbf{B_{3}}$ = $\frac{2}{3} \, \mathbf{a}_{1}+\frac{1}{3} \, \mathbf{a}_{2}- z_{2} \, \mathbf{a}_{3}$ = $\frac{1}{2}a \,\mathbf{\hat{x}}- \frac{\sqrt{3}}{6}a \,\mathbf{\hat{y}}- c z_{2} \,\mathbf{\hat{z}}$ (2d) K I
$\mathbf{B_{4}}$ = $x_{3} \, \mathbf{a}_{1}- x_{3} \, \mathbf{a}_{2}+z_{3} \, \mathbf{a}_{3}$ = $- \sqrt{3}a x_{3} \,\mathbf{\hat{y}}+c z_{3} \,\mathbf{\hat{z}}$ (6i) F I
$\mathbf{B_{5}}$ = $x_{3} \, \mathbf{a}_{1}+2 x_{3} \, \mathbf{a}_{2}+z_{3} \, \mathbf{a}_{3}$ = $\frac{3}{2}a x_{3} \,\mathbf{\hat{x}}+\frac{\sqrt{3}}{2}a x_{3} \,\mathbf{\hat{y}}+c z_{3} \,\mathbf{\hat{z}}$ (6i) F I
$\mathbf{B_{6}}$ = $- 2 x_{3} \, \mathbf{a}_{1}- x_{3} \, \mathbf{a}_{2}+z_{3} \, \mathbf{a}_{3}$ = $- \frac{3}{2}a x_{3} \,\mathbf{\hat{x}}+\frac{\sqrt{3}}{2}a x_{3} \,\mathbf{\hat{y}}+c z_{3} \,\mathbf{\hat{z}}$ (6i) F I
$\mathbf{B_{7}}$ = $- x_{3} \, \mathbf{a}_{1}+x_{3} \, \mathbf{a}_{2}- z_{3} \, \mathbf{a}_{3}$ = $\sqrt{3}a x_{3} \,\mathbf{\hat{y}}- c z_{3} \,\mathbf{\hat{z}}$ (6i) F I
$\mathbf{B_{8}}$ = $2 x_{3} \, \mathbf{a}_{1}+x_{3} \, \mathbf{a}_{2}- z_{3} \, \mathbf{a}_{3}$ = $\frac{3}{2}a x_{3} \,\mathbf{\hat{x}}- \frac{\sqrt{3}}{2}a x_{3} \,\mathbf{\hat{y}}- c z_{3} \,\mathbf{\hat{z}}$ (6i) F I
$\mathbf{B_{9}}$ = $- x_{3} \, \mathbf{a}_{1}- 2 x_{3} \, \mathbf{a}_{2}- z_{3} \, \mathbf{a}_{3}$ = $- \frac{3}{2}a x_{3} \,\mathbf{\hat{x}}- \frac{\sqrt{3}}{2}a x_{3} \,\mathbf{\hat{y}}- c z_{3} \,\mathbf{\hat{z}}$ (6i) F I

References

  • J. L. Hoard and W. B. Vincent, Structures of Complex Fluorides. Potassium Hexafluogermanate and Ammonium Hexafluogermanate, J. Am. Chem. Soc. 61, 2849–2852 (1939), doi:10.1021/ja01265a082.

Found in

  • T. Kaatz and M. Marcovich, The crystal structure of the compound Cs$_{2}$CeCl$_{6}$, Acta Cryst. 21, 1011 (1966), doi:10.1107/S0365110X66004419.

Prototype Generator

aflow --proto=A6BC2_hP9_164_i_a_d --params=$a,c/a,z_{2},x_{3},z_{3}$

Species:

Running:

Output: