s-net: sqc1809
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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 | 16 |
| Transitivity (vertex,edge) | (2,4) |
| Vertex degrees | {4,12} |
| Vertex coordination sequence | [(4, 34, 106, 230, 314, 582, 618, 1094, 1018, 1766), (12, 52, 124, 228, 364, 532, 732, 964, 1228, 1524)] |
| Wells’ vertex symbol | [3^4.4^2, 3^8.4^27.5^24.6^7] |
| Systre key | (3, 1, 2, -1, 1, 2, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 2, 0, 0, 2, 1, 2, 0, 1, 0, 1, 2, 0, 1, 1, 1, 2, 0, 1, 2, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, 0, 0, 1, 4, -1, 1, 0, 1, 4, 0, 0, 0, 2, 3, 0, 0, 0, 2, 3, 1, -1, -2, 2, 4, -1, 0, 0, 2, 4, 0, 0, -2) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.34885 | 1.6611 | 0.95904 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.25 | 0.25 | 0.5 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.48123 | 2.08692 | 0.50608 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.25 | 0.25 | 0.5 |
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 |
|---|---|---|---|---|---|
 |
hqc641 | *22222 | (2,4,3) | {12,4} | {4.3.3.3.3.4.4.3.3.3.3.4}{3.3.3.3} |