s-net: sqc8261
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 18 |
| Edges per primitive translational unit | 33 |
| Transitivity (vertex,edge) | (2,5) |
| Vertex degrees | {3,4} |
| Vertex coordination sequence | [(3, 6, 14, 26, 38, 56, 81, 110, 143, 172), (4, 9, 17, 29, 46, 67, 90, 116, 145, 179)] |
| Wells’ vertex symbol | [4^2.6, 4^2.6.8^3] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 6, 0, 0, 0, 2, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 8, 0, 0, 0, 3, 9, 0, 0, 0, 3, 10, 0, 0, 0, 4, 11, 0, 0, 0, 4, 12, 0, 0, 0, 4, 13, 0, 0, 0, 5, 13, 0, 0, 0, 5, 14, 0, 0, 0, 6, 9, 1, 0, 0, 6, 10, 1, 0, 0, 7, 10, 1, 0, 0, 7, 15, 0, 0, 0, 7, 16, 0, 0, 0, 8, 13, 0, 1, 0, 8, 14, 0, 1, 0, 9, 15, 0, 0, 1, 9, 16, 0, 0, 1, 11, 14, 1, 0, 1, 11, 15, 1, -1, 1, 11, 17, 0, 0, 0, 12, 14, 1, 0, 1, 12, 16, 0, 0, 1, 12, 18, 0, 0, 0, 15, 18, 0, 1, -1, 16, 17, -1, 0, -1, 17, 18, 1, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 4.76077 | 4.76077 | 7.14246 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.44444 | 0 | 0.5 |
| 0 | 0.22222 | 0.27778 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 4.41902 | 4.41902 | 7.19379 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.38686 | 0 | 0.5 |
| 0 | 0.22629 | 0.29348 |
Edge end points:
Hyperbolic sources
h-nets with faithful topology
1 record listed.| Image | h-net name | Orbifold symbol | Transitivity (Vert,Edge,Face) | Vertex Degree | 2D Vertex Symbol |
|---|---|---|---|---|---|
 |
hqc1664 | *2626 | (2,5,4) | {4,3} | {12.4.18.4}{18.4.4} |