s-net: sqc3321
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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 | 20 |
| Transitivity (vertex,edge) | (3,3) |
| Vertex degrees | {4,8,4} |
| Vertex coordination sequence | [(4, 20, 62, 162, 288, 516, 796, 1218, 1668, 2270), (8, 24, 90, 154, 328, 478, 840, 1142, 1674, 2182), (4, 28, 58, 178, 268, 518, 732, 1166, 1542, 2156)] |
| Wells’ vertex symbol | [5^4.6.8, 5^8.6^16.7^4, 5^4.6^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 1, 2, 1, 0, 0, 2, 3, 0, 0, 0, 2, 4, 0, 0, 0, 2, 5, 0, 0, 0, 2, 6, 0, 0, 0, 3, 3, -1, 0, 1, 3, 7, 0, 0, 0, 4, 4, 0, -1, 0, 4, 7, 1, 0, 0, 5, 5, 0, 0, -1, 5, 7, 0, 1, 0, 6, 6, -1, 1, 0, 6, 7, 0, 0, 1, 7, 8, 0, 0, 0, 7, 8, 0, 0, 1, 7, 8, 0, 1, 0, 7, 8, 1, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I41/a
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.87965 | 1.87965 | 2.21137 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0.25 | 0.125 |
| 0 | 0.25 | 0.625 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I41/a
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.23324 | 2.23324 | 0.66244 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0.25 | 0.125 |
| 0 | 0.25 | 0.625 |
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 |
|---|---|---|---|---|---|
 |
hqc174 | *2244 | (3,3,1) | {4,8,4} | {5.5.5.5}{5.5.5.5.5.5.5.5}{5.5.5.5} |