s-net: sqc3948
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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 | {18,4} |
| Vertex coordination sequence | [(18, 84, 206, 384, 618, 908, 1254, 1656, 2114, 2628), (4, 32, 132, 291, 504, 773, 1098, 1479, 1916, 2409)] |
| Wells’ vertex symbol | [3^12.4^36.5^54.6^33.7^15.8^3, 3.4^5] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 2, -1, 0, 0, 2, 2, -1, 1, -1, 2, 2, 0, -1, 0, 2, 3, 0, -1, 1, 2, 3, 0, 0, 1, 2, 4, -1, 1, 0, 2, 4, 0, 0, 1, 2, 5, 0, 0, 0, 2, 5, 1, 0, 0, 2, 6, 0, -1, 0, 2, 6, 0, 0, 0, 2, 7, 0, 0, 0, 2, 7, 1, -1, 1, 3, 7, 0, 0, 0, 4, 6, 0, -1, 0, 5, 6, 0, -1, 1, 5, 7, 0, 0, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.55352 | 2.55352 | 2.2112 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.22222 | 0.11111 | 0.38889 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.28129 | 1.28129 | 2.71268 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.12532 | 0.25064 | 0.33106 |
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 |
|---|---|---|---|---|---|
 |
hqc409 | *2626 | (2,3,3) | {4,18} | {6.6.3.6}{6.3.3.6.3.3.6.3.3.6.3.... |