s-net: sqc899
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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 | 12 |
| Transitivity (vertex,edge) | (2,3) |
| Vertex degrees | {4,8} |
| Vertex coordination sequence | [(4, 20, 72, 114, 240, 278, 496, 514, 840, 822), (8, 30, 80, 142, 232, 334, 464, 606, 776, 958)] |
| Wells’ vertex symbol | [3^2.4^2.5^2, 3^4.4^4.5^4.6^16] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 0, 1, 0, 1, 2, 1, 0, 0, 1, 2, 1, 1, 2, 1, 3, 0, 0, 0, 1, 3, 1, 0, 1, 1, 4, 0, 0, 0, 1, 4, 0, 0, 1, 2, 3, 0, -1, -1, 2, 3, 0, -1, 0, 2, 4, -1, -1, -1, 2, 4, 0, -1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.09122 | 2.09205 | 1.8112 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.25 | 0 | 0 |
| 0 | 0.75 | 0.83333 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Cmma
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.48472 | 1.7563 | 0.88592 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.25 | 0 | 0 |
| 0 | 0.25 | 0.49643 |
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 |
|---|---|---|---|---|---|
 |
hqc282 | *22222 | (2,3,2) | {8,4} | {3.6.6.3.3.6.6.3}{3.6.3.6} |