s-net: sqc3960
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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 | 21 |
| Transitivity (vertex,edge) | (4,5) |
| Vertex degrees | {3,8,6,4} |
| Vertex coordination sequence | [(3, 16, 32, 81, 94, 193, 182, 349, 302, 549), (8, 16, 48, 62, 132, 140, 266, 240, 448, 374), (6, 20, 30, 86, 94, 194, 182, 354, 298, 554), (4, 16, 28, 74, 88, 182, 176, 330, 300, 522)] |
| Wells’ vertex symbol | [5^2.8, 3^4.4^4.5^8.6^7.7^4.9, 3^4.4^4.5^4.6^3, 3^4.4^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 3, 0, 1, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 5, 1, 0, 0, 1, 6, 0, 0, 0, 1, 7, 0, 0, 0, 2, 7, 0, 0, 1, 2, 8, 0, 0, 0, 3, 4, 0, 0, 0, 3, 6, 0, -1, 0, 3, 8, -1, -1, -1, 3, 8, 0, -1, -1, 4, 5, 1, 0, 0, 4, 8, 0, -1, -1, 5, 6, 0, 0, 0, 5, 8, -1, -1, -1, 5, 8, -1, 0, -1, 6, 8, -1, 0, -1, 7, 8, -1, -1, -2) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Fmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.14578 | 2.91197 | 5.44978 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.125 | 0 |
| 0 | 0.25 | 0.25 |
| 0.25 | 0 | 0.25 |
| 0.25 | 0.25 | 0.25 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Fmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.26148 | 3.26133 | 4.0388 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.16101 | 0 |
| 0 | 0.25 | 0.25 |
| 0.25 | 0 | 0.25 |
| 0.25 | 0.25 | 0.25 |
Edge end points:
