s-net: sqc2321
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 7 |
| Edges per primitive translational unit | 18 |
| Transitivity (vertex,edge) | (2,4) |
| Vertex degrees | {4,12} |
| Vertex coordination sequence | [(4, 18, 67, 183, 358, 589, 875, 1217, 1615, 2069), (12, 60, 164, 324, 540, 812, 1140, 1524, 1964, 2460)] |
| Wells’ vertex symbol | [4^2.5^3.6, 4^24.5^12.6^27.8^3] |
| Systre key | (3, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 1, 0, 0, -1, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 6, 0, 0, 0, 1, 7, 0, 0, 0, 2, 3, 0, 0, -1, 2, 5, 1, 0, 0, 2, 7, 1, -1, 0, 3, 5, 0, 1, 0, 3, 6, 1, 0, 1, 4, 5, 0, 1, -1, 4, 6, 0, 1, 0, 4, 7, 1, 0, 0, 6, 7, 0, 0, -1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.8526 | 2.8526 | 2.16614 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.05556 | 0.27778 | 0.22222 |
| 0 | 0 | 1 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.47493 | 1.47493 | 2.12993 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.2123 | 0.04638 | 0.40869 |
| 0 | 0 | 1 |
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 |
|---|---|---|---|---|---|
 |
hqc212 | *2626 | (2,4,2) | {4,12} | {12.4.4.12}{4.4.4.4.4.4.4.4.4.4.... |