s-net: sqc3942
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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 | 21 |
| Transitivity (vertex,edge) | (2,4) |
| Vertex degrees | {5,12} |
| Vertex coordination sequence | [(5, 27, 53, 119, 162, 268, 323, 471, 540, 730), (12, 24, 74, 102, 192, 236, 366, 426, 596, 672)] |
| Wells’ vertex symbol | [3^2.4^4.5^4, 3^6.4^6.5^18.6^18.7^6.8^12] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 3, -1, 0, 0, 2, 3, 0, 0, 0, 2, 4, -1, 0, -1, 2, 4, 0, 1, 0, 2, 5, 0, 0, 1, 2, 5, 0, 1, 0, 2, 6, -1, -1, -1, 2, 6, 0, 0, 0, 2, 7, 0, -1, 1, 2, 7, 0, 0, 0, 3, 6, 0, 0, -1, 3, 7, 1, 0, 1, 4, 6, 0, -1, 0, 4, 7, 0, -1, 1, 5, 6, -1, -1, -1, 5, 7, 0, -1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.26568 | 3.26568 | 2.1164 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.13333 | 0.26667 | 0.41667 |
| 0 | 0 | 1 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.90454 | 2.90454 | 0.77972 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.27761 | 0.13881 | 0.05467 |
| 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 |
|---|---|---|---|---|---|
 |
hqc428 | *2626 | (2,3,3) | {5,12} | {6.6.3.3.6}{6.3.6.3.6.3.6.3.6.3.... |