s-net: sqc1646
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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 | {12,4} |
| Vertex coordination sequence | [(12, 46, 116, 212, 336, 488, 668, 876, 1112, 1376), (4, 34, 100, 208, 314, 490, 640, 884, 1078, 1390)] |
| Wells’ vertex symbol | [3^16.4^24.5^18.6^6.7^2, 3^2.4^2.5^2] |
| Systre key | (3, 1, 1, -1, 0, 0, 1, 2, -2, 0, 0, 1, 2, -2, 1, 0, 1, 2, -1, 0, 0, 1, 2, -1, 1, 0, 1, 2, 0, 0, 0, 1, 2, 0, 1, 0, 1, 3, 0, 0, 0, 1, 3, 0, 1, -1, 1, 4, 0, 0, 0, 1, 4, 0, 0, 1, 2, 2, -1, 0, 0, 2, 3, 0, 0, 0, 2, 3, 2, 0, -1, 2, 4, 0, -1, 1, 2, 4, 2, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.64464 | 3.28902 | 0.82268 | 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 |
|---|---|---|---|---|---|
| 1.6024 | 3.45448 | 0.80121 | 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 |
|---|---|---|---|---|---|
 |
hqc643 | *222222 | (2,4,3) | {12,4} | {4.3.6.6.3.4.4.3.6.6.3.4}{3.6.3.6} |