s-net: sqc3902
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 5 |
| Edges per primitive translational unit | 21 |
| Transitivity (vertex,edge) | (3,4) |
| Vertex degrees | {18,12,4} |
| Vertex coordination sequence | [(18, 78, 200, 342, 594, 794, 1200, 1434, 2018, 2262), (12, 60, 170, 354, 528, 854, 1074, 1566, 1808, 2490), (4, 36, 116, 274, 446, 728, 958, 1394, 1658, 2272)] |
| Wells’ vertex symbol | [3^30.4^60.5^51.6^12, 3^18.4^36.5^12, 3^4.4^2] |
| Systre key | (3, 1, 1, -1, -1, -1, 1, 1, -1, 0, 0, 1, 1, 0, -1, -1, 1, 2, -1, -1, -1, 1, 2, -1, -1, 0, 1, 2, -1, 0, 0, 1, 2, 0, -1, 0, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 3, 0, -1, 0, 1, 3, 0, 0, 0, 1, 4, -1, 0, -1, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 5, 0, 0, 1, 2, 3, 0, 0, 0, 2, 3, 1, 0, 0, 2, 4, 0, 0, -1, 2, 4, 0, 1, 0, 2, 5, 0, 0, 0, 2, 5, 1, 1, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.45655 | 1.45655 | 4.71975 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
| 0 | 0.5 | 0.5 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.27328 | 1.27328 | 5.72391 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
| 0 | 0.5 | 0.5 |
Edge end points:
