s-net: sqc2908
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 9 |
| Edges per primitive translational unit | 18 |
| Transitivity (vertex,edge) | (2,3) |
| Vertex degrees | {3,6} |
| Vertex coordination sequence | [(3, 9, 32, 89, 191, 330, 498, 706, 946, 1226), (6, 24, 70, 156, 282, 440, 632, 864, 1126, 1432)] |
| Wells’ vertex symbol | [6^3, 6^8.7^5.8^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 3, 0, 2, -1, 1, 4, 0, 0, 0, 1, 4, 1, 0, 0, 1, 5, 0, 0, 0, 2, 6, 0, 0, 0, 2, 7, 0, 0, 0, 3, 4, 0, 0, 1, 3, 4, 1, -2, 0, 3, 6, 0, -1, 0, 3, 8, 0, 0, 0, 4, 7, 0, -1, 0, 4, 9, 0, 0, 0, 5, 8, 0, 1, -1, 5, 9, 1, -1, 0, 6, 9, 0, 0, 1, 7, 8, -1, 2, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 4.43289 | 4.43289 | 1.6227 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.16667 | 0.08333 | 0.03333 |
| 0 | 0.5 | 0.5 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.63322 | 3.63322 | 0.5264 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.044 | 0.088 | 0.06501 |
| 0 | 0.5 | 0.5 |
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 |
|---|---|---|---|---|---|
 |
hqc226 | *2626 | (2,3,3) | {3,6} | {6.8.8}{8.6.8.8.6.8} |