s-net: sqc180
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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 | 8 |
| Transitivity (vertex,edge) | (3,4) |
| Vertex degrees | {6,4,3} |
| Vertex coordination sequence | [(6, 12, 28, 56, 80, 122, 176, 216, 282, 360), (4, 16, 28, 52, 94, 120, 168, 238, 276, 348), (3, 11, 22, 45, 79, 116, 161, 221, 278, 341)] |
| Wells’ vertex symbol | [4^2.5^8.6^3.8^2, 5^4.8^2, 4.6^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 0, 1, 0, 1, 4, 0, 0, 0, 1, 4, 1, 0, 0, 2, 4, 0, 0, 1, 3, 3, -1, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.17143 | 2.34235 | 2.34444 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
| 0.5 | 0.25 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.00006 | 2.73195 | 2.00005 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
| 0.5 | 0.31698 | 0 |
Edge end points:
Hyperbolic sources
h-nets with faithful topology
3 records listed.| Image | h-net name | Orbifold symbol | Transitivity (Vert,Edge,Face) | Vertex Degree | 2D Vertex Symbol |
|---|---|---|---|---|---|
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hqc803 | *22222 | (3,4,2) | {3,6,4} | {6.5.6}{6.5.5.6.5.5}{5.5.5.5} |
 |
hqc807 | *222222 | (3,4,2) | {3,6,4} | {6.10.6}{6.10.10.6.10.10}{10.10.... |
 |
hqc834 | *222222 | (3,4,2) | {4,6,3} | {12.12.12.12}{12.4.12.12.4.12}{1... |