s-net: sqc568
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 4 |
| Edges per primitive translational unit | 11 |
| Transitivity (vertex,edge) | (2,6) |
| Vertex degrees | {8,3} |
| Vertex coordination sequence | [(8, 20, 42, 72, 112, 158, 216, 280, 354, 436), (3, 9, 30, 59, 101, 146, 205, 267, 344, 423)] |
| Wells’ vertex symbol | [3^8.4^15.5^3.6^2, 3.8^2] |
| Systre key | (3, 1, 1, -1, 0, 0, 1, 2, -2, 1, 0, 1, 2, -1, 1, 0, 1, 2, 0, 0, 0, 1, 2, 0, 1, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 2, -1, 0, 0, 2, 3, 1, -1, 0, 2, 4, 1, -1, 0, 3, 4, 0, 0, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.01759 | 2.87891 | 2.27631 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.5 | 0.1 |
| 0 | 0.75 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 0.8912 | 2.9548 | 1.76193 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.5 | 0.20777 |
| 0 | 0.82575 | 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 |
|---|---|---|---|---|---|
 |
hqc1676 | *222222 | (2,6,4) | {8,3} | {4.4.8.3.3.8.4.4}{8.8.3} |