s-net: sqc2168
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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) | (2,4) |
| Vertex degrees | {4,4} |
| Vertex coordination sequence | [(4, 8, 16, 30, 50, 72, 92, 118, 154, 192), (4, 8, 18, 30, 42, 66, 98, 122, 144, 184)] |
| Wells’ vertex symbol | [3.4.8^4, 3^2.4.8^2.9] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 3, 0, 0, 0, 2, 3, 1, 0, 0, 2, 6, 0, 0, 0, 3, 6, 0, 0, 0, 4, 6, 0, 1, 0, 4, 7, 0, 0, 0, 4, 8, 0, 0, 0, 5, 6, 0, 1, 0, 5, 7, 0, 0, 1, 5, 8, 0, 0, 1, 7, 8, 0, 0, 0, 7, 8, 1, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: P4/mmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.33411 | 3.33411 | 2.04129 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.25 | 0 |
| 0 | 0.5 | 0.16667 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: P4/mmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.14629 | 3.14629 | 1.99998 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.22475 | 0 |
| 0 | 0.5 | 0.25 |
Edge end points:
Hyperbolic sources
h-nets with faithful topology
2 records listed.| Image | h-net name | Orbifold symbol | Transitivity (Vert,Edge,Face) | Vertex Degree | 2D Vertex Symbol |
|---|---|---|---|---|---|
 |
hqc729 | *2224 | (2,4,3) | {4,4} | {4.8.3.8}{8.8.3.3} |
 |
hqc730 | *2244 | (2,4,3) | {4,4} | {4.16.3.16}{16.16.3.3} |
