s-net: sqc1971
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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 | {4,3,6} |
| Vertex coordination sequence | [(4, 10, 26, 62, 96, 142, 182, 244, 332, 418), (3, 13, 31, 63, 96, 141, 185, 259, 321, 410), (6, 18, 40, 64, 100, 146, 212, 266, 332, 390)] |
| Wells’ vertex symbol | [5^4.8^2, 5^2.6, 5^2.6^9.8^2.9^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, -1, 0, 1, 4, 0, 0, 0, 1, 4, 0, 1, 0, 2, 5, 0, 0, 0, 2, 5, 1, -1, 0, 2, 6, 0, 0, 0, 2, 6, 0, 1, 0, 3, 7, 0, 0, 0, 4, 8, 0, 0, 0, 5, 8, 0, 0, 1, 6, 7, 1, -2, 1, 7, 8, -1, 1, 0, 7, 8, 0, 1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.29357 | 1.9012 | 3.29453 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.25 | 0 | 0 |
| 0.25 | 0 | 0.25 |
| 0 | 0.25 | 0.625 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.02962 | 1.99784 | 2.90589 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.25 | 0 | 0 |
| 0.25 | 0 | 0.34413 |
| 0 | 0.25 | 0.51113 |
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 |
|---|---|---|---|---|---|
 |
hqc804 | *22222 | (3,4,2) | {6,3,4} | {6.5.6.6.5.6}{6.5.5}{5.5.5.5} |