s-net: sqc1990
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 6 |
| Edges per primitive translational unit | 16 |
| Transitivity (vertex,edge) | (2,2) |
| Vertex degrees | {4,8} |
| Vertex coordination sequence | [(4, 26, 44, 152, 140, 390, 286, 724, 488, 1174), (8, 20, 88, 94, 280, 218, 572, 398, 976, 628)] |
| Wells’ vertex symbol | [4^2.6^4, 4^4.6^22.8^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, 1, 1, 1, 4, 0, 0, 0, 1, 4, 0, 0, 1, 1, 5, 0, 0, 0, 1, 5, 0, 1, 0, 2, 6, 0, 0, 0, 2, 6, 1, 0, 0, 3, 6, 1, -1, 0, 3, 6, 2, 0, 1, 4, 6, 2, 1, 0, 4, 6, 2, 1, 1, 5, 6, 1, -1, 1, 5, 6, 1, 0, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I41/a
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.89323 | 1.89323 | 2.07375 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0.25 | 0.625 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I41/a
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.70583 | 1.70583 | 2.41171 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 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 |
|---|---|---|---|---|---|
 |
hqc96 | *2244 | (2,1,2) | {4,8} | {4.8.4.8}{4.8.4.8.4.8.4.8} |