s-net: sqc1989
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 8 |
| Edges per primitive translational unit | 16 |
| Transitivity (vertex,edge) | (3,4) |
| Vertex degrees | {4,4,4} |
| Vertex coordination sequence | [(4, 8, 18, 46, 72, 126, 152, 234, 268, 376), (4, 6, 16, 40, 74, 116, 164, 208, 290, 342), (4, 12, 28, 54, 80, 118, 168, 218, 296, 358)] |
| Wells’ vertex symbol | [3^2.4.8^2.9, 3^2.8^2.9^2, 8.9^4.10] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, 0, 0, 2, 3, 0, 0, 0, 2, 4, 0, 0, 0, 3, 4, 0, 1, 0, 4, 5, 0, 0, 0, 4, 5, 0, 0, 1, 5, 6, 0, 0, 0, 5, 7, 0, 0, 0, 6, 7, -1, 0, 0, 6, 8, 0, 0, 0, 6, 8, 0, 1, 0, 7, 8, 1, 0, 0, 7, 8, 1, 1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: P42/mmc
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.06382 | 2.06382 | 3.45358 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.1 | 0.5 | 0 |
| 0 | 0 | 0 |
| 0.5 | 0.5 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: P42/mmc
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.71021 | 1.71021 | 2.10311 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.21962 | 0.5 | 0 |
| 0 | 0 | 0 |
| 0.5 | 0.5 | 0 |
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 |
|---|---|---|---|---|---|
 |
hqc819 | *22222 | (3,4,2) | {4,4,4} | {3.10.10.3}{3.10.3.10}{10.10.10.10} |