s-net: sqc3988
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 9 |
| Edges per primitive translational unit | 21 |
| Transitivity (vertex,edge) | (2,3) |
| Vertex degrees | {5,4} |
| Vertex coordination sequence | [(5, 11, 27, 44, 71, 102, 132, 179, 226, 268), (4, 10, 26, 46, 62, 108, 132, 172, 228, 268)] |
| Wells’ vertex symbol | [3^3.4^2.5.7^4, 3^2.7^2.8^2] |
| Systre key | (3, 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, 2, 5, 0, 1, 0, 2, 6, 1, 0, 0, 2, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 4, 0, 0, 0, 3, 5, 0, 0, 0, 3, 8, 0, 0, 1, 3, 9, 0, 0, 0, 4, 6, 0, 0, 0, 4, 7, -1, 1, 1, 4, 9, 0, 0, 0, 5, 8, 0, -1, 0, 6, 7, -1, 0, 0, 7, 8, 0, 0, 0, 7, 9, 1, 0, -1, 8, 9, 1, 0, -1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.32133 | 3.32133 | 6.70112 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.14286 | 0.07143 | 0.25 |
| 0.5 | 0 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.21015 | 3.21015 | 5.65998 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.20767 | 0.10384 | 0.22987 |
| 0.5 | 0 | 0 |
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 |
|---|---|---|---|---|---|
 |
hqc369 | *2626 | (2,3,3) | {5,4} | {12.3.12.3.12}{3.12.3.12} |