Encyclopedia of Crystallographic Prototypes

AFLOW Prototype: A2B_oP6_59_e_a-001

This structure originally had the label A2B_oP6_59_f_a. 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/BRW1
or https://aflow.org/p/A2B_oP6_59_e_a-001
or PDF Version

RuB$_{2}$ Structure: A2B_oP6_59_e_a-001

Picture of Structure; Click for Big Picture
Prototype B$_{2}$Ru
AFLOW prototype label A2B_oP6_59_e_a-001
ICSD 615356
Pearson symbol oP6
Space group number 59
Space group symbol $Pmmn$
AFLOW prototype command aflow --proto=A2B_oP6_59_e_a-001
--params=$a, \allowbreak b/a, \allowbreak c/a, \allowbreak z_{1}, \allowbreak y_{2}, \allowbreak z_{2}$

Other compounds with this structure

OsB$_{2}$


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

Basis vectors

Lattice coordinates Cartesian coordinates Wyckoff position Atom type
$\mathbf{B_{1}}$ = $\frac{1}{4} \, \mathbf{a}_{1}+\frac{1}{4} \, \mathbf{a}_{2}+z_{1} \, \mathbf{a}_{3}$ = $\frac{1}{4}a \,\mathbf{\hat{x}}+\frac{1}{4}b \,\mathbf{\hat{y}}+c z_{1} \,\mathbf{\hat{z}}$ (2a) Ru I
$\mathbf{B_{2}}$ = $\frac{3}{4} \, \mathbf{a}_{1}+\frac{3}{4} \, \mathbf{a}_{2}- z_{1} \, \mathbf{a}_{3}$ = $\frac{3}{4}a \,\mathbf{\hat{x}}+\frac{3}{4}b \,\mathbf{\hat{y}}- c z_{1} \,\mathbf{\hat{z}}$ (2a) Ru I
$\mathbf{B_{3}}$ = $\frac{1}{4} \, \mathbf{a}_{1}+y_{2} \, \mathbf{a}_{2}+z_{2} \, \mathbf{a}_{3}$ = $\frac{1}{4}a \,\mathbf{\hat{x}}+b y_{2} \,\mathbf{\hat{y}}+c z_{2} \,\mathbf{\hat{z}}$ (4e) B I
$\mathbf{B_{4}}$ = $\frac{1}{4} \, \mathbf{a}_{1}- \left(y_{2} - \frac{1}{2}\right) \, \mathbf{a}_{2}+z_{2} \, \mathbf{a}_{3}$ = $\frac{1}{4}a \,\mathbf{\hat{x}}- b \left(y_{2} - \frac{1}{2}\right) \,\mathbf{\hat{y}}+c z_{2} \,\mathbf{\hat{z}}$ (4e) B I
$\mathbf{B_{5}}$ = $\frac{3}{4} \, \mathbf{a}_{1}+\left(y_{2} + \frac{1}{2}\right) \, \mathbf{a}_{2}- z_{2} \, \mathbf{a}_{3}$ = $\frac{3}{4}a \,\mathbf{\hat{x}}+b \left(y_{2} + \frac{1}{2}\right) \,\mathbf{\hat{y}}- c z_{2} \,\mathbf{\hat{z}}$ (4e) B I
$\mathbf{B_{6}}$ = $\frac{3}{4} \, \mathbf{a}_{1}- y_{2} \, \mathbf{a}_{2}- z_{2} \, \mathbf{a}_{3}$ = $\frac{3}{4}a \,\mathbf{\hat{x}}- b y_{2} \,\mathbf{\hat{y}}- c z_{2} \,\mathbf{\hat{z}}$ (4e) B I

References

  • B. Aronsson, The Crystal Structure of RuB$_{2}$, OsB$_{2}$, and IrB$_{1.35}$ and Some General Comments on the Crystal Chemistry of Borides in the Composition Range MeB - MeB$_{3}$, Acta Chem. Scand. 17, 2036–2050 (1963), doi:10.3891/acta.chem.scand.17-2036.

Prototype Generator

aflow --proto=A2B_oP6_59_e_a --params=$a,b/a,c/a,z_{1},y_{2},z_{2}$

Species:

Running:

Output: