AuCsCl3 ($K7_{6}$) Structure : AB3C_tI20_139_ab_eh_d

Picture of Structure; Click for Big Picture
Prototype : AuCl3Cs
AFLOW prototype label : AB3C_tI20_139_ab_eh_d
Strukturbericht designation : $K7_{6}$
Pearson symbol : tI20
Space group number : 139
Space group symbol : $I4/mmm$
AFLOW prototype command : aflow --proto=AB3C_tI20_139_ab_eh_d
--params=
$a$,$c/a$,$z_{4}$,$x_{5}$


Other compounds with this structure

  • AgAuCs2Cl6

Body-centered Tetragonal primitive vectors:

\[ \begin{array}{ccc} \mathbf{a}_1 & = & - \frac12 \, a \, \mathbf{\hat{x}} + \frac12 \, a \, \mathbf{\hat{y}} + \frac12 \, c \, \mathbf{\hat{z}} \\ \mathbf{a}_2 & = & ~ \frac12 \, a \, \mathbf{\hat{x}} - \frac12 \, a \, \mathbf{\hat{y}} + \frac12 \, c \, \mathbf{\hat{z}} \\ \mathbf{a}_3 & = & ~ \frac12 \, a \, \mathbf{\hat{x}} + \frac12 \, a \, \mathbf{\hat{y}} - \frac12 \, c \, \mathbf{\hat{z}} \\ \end{array} \]

Basis vectors:

\[ \begin{array}{ccccccc} & & \mbox{Lattice Coordinates} & & \mbox{Cartesian Coordinates} &\mbox{Wyckoff Position} & \mbox{Atom Type} \\ \mathbf{B}_{1} & = & 0 \, \mathbf{a}_{1} + 0 \, \mathbf{a}_{2} + 0 \, \mathbf{a}_{3} & = & 0 \, \mathbf{\hat{x}} + 0 \, \mathbf{\hat{y}} + 0 \, \mathbf{\hat{z}} & \left(2a\right) & \mbox{Au I} \\ \mathbf{B}_{2} & = & \frac{1}{2} \, \mathbf{a}_{1} + \frac{1}{2} \, \mathbf{a}_{2} & = & \frac{1}{2}c \, \mathbf{\hat{z}} & \left(2b\right) & \mbox{Au II} \\ \mathbf{B}_{3} & = & \frac{3}{4} \, \mathbf{a}_{1} + \frac{1}{4} \, \mathbf{a}_{2} + \frac{1}{2} \, \mathbf{a}_{3} & = & \frac{1}{2}a \, \mathbf{\hat{y}} + \frac{1}{4}c \, \mathbf{\hat{z}} & \left(4d\right) & \mbox{Cs} \\ \mathbf{B}_{4} & = & \frac{1}{4} \, \mathbf{a}_{1} + \frac{3}{4} \, \mathbf{a}_{2} + \frac{1}{2} \, \mathbf{a}_{3} & = & \frac{1}{2}a \, \mathbf{\hat{x}} + \frac{1}{4}c \, \mathbf{\hat{z}} & \left(4d\right) & \mbox{Cs} \\ \mathbf{B}_{5} & = & z_{4} \, \mathbf{a}_{1} + z_{4} \, \mathbf{a}_{2} & = & z_{4}c \, \mathbf{\hat{z}} & \left(4e\right) & \mbox{Cl I} \\ \mathbf{B}_{6} & = & -z_{4} \, \mathbf{a}_{1}-z_{4} \, \mathbf{a}_{2} & = & -z_{4}c \, \mathbf{\hat{z}} & \left(4e\right) & \mbox{Cl I} \\ \mathbf{B}_{7} & = & x_{5} \, \mathbf{a}_{1} + x_{5} \, \mathbf{a}_{2} + 2x_{5} \, \mathbf{a}_{3} & = & x_{5}a \, \mathbf{\hat{x}} + x_{5}a \, \mathbf{\hat{y}} & \left(8h\right) & \mbox{Cl II} \\ \mathbf{B}_{8} & = & -x_{5} \, \mathbf{a}_{1}-x_{5} \, \mathbf{a}_{2}-2x_{5} \, \mathbf{a}_{3} & = & -x_{5}a \, \mathbf{\hat{x}}-x_{5}a \, \mathbf{\hat{y}} & \left(8h\right) & \mbox{Cl II} \\ \mathbf{B}_{9} & = & x_{5} \, \mathbf{a}_{1}-x_{5} \, \mathbf{a}_{2} & = & -x_{5}a \, \mathbf{\hat{x}} + x_{5}a \, \mathbf{\hat{y}} & \left(8h\right) & \mbox{Cl II} \\ \mathbf{B}_{10} & = & -x_{5} \, \mathbf{a}_{1} + x_{5} \, \mathbf{a}_{2} & = & x_{5}a \, \mathbf{\hat{x}}-x_{5}a \, \mathbf{\hat{y}} & \left(8h\right) & \mbox{Cl II} \\ \end{array} \]

References

  • N. Elliott and L. Pauling, The Crystal Structure of Cesium Aurous Auric Chloride, Cs2AuAuCl6, and Cesium Argentous Auric Chloride, Cs2AgAuCl6, J. Am. Chem. Soc. 60, 1846–1851 (1938), doi:10.1021/ja01275a037.

Found in

  • R. T. Downs and M. Hall–Wallace, The American Mineralogist Crystal Structure Database, Am. Mineral. 88, 247–250 (2003).

Geometry files


Prototype Generator

aflow --proto=AB3C_tI20_139_ab_eh_d --params=

Species:

Running:

Output: