s-net: sqc3900
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 8 |
| Edges per primitive translational unit | 21 |
| Transitivity (vertex,edge) | (3,4) |
| Vertex degrees | {12,3,12} |
| Vertex coordination sequence | [(12, 62, 218, 508, 926, 1472, 2146, 2948, 3878, 4936), (3, 30, 69, 272, 526, 1008, 1578, 2276, 3102, 4056), (12, 14, 114, 232, 590, 1058, 1642, 2354, 3194, 4162)] |
| Wells’ vertex symbol | [4^18.5^24.6^3.7^12.8^9, 4^2.5, 4^12.5^18.6^18.7^18] |
| Systre key | (3, 1, 1, -2, -1, 1, 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, 8, -2, -1, 1, 2, 8, 0, 0, 0, 3, 8, -1, -1, 0, 3, 8, -1, 0, 0, 4, 8, -1, -1, 0, 4, 8, -1, -1, 1, 5, 8, -2, -1, 0, 5, 8, -2, -1, 1, 6, 8, -2, -2, 1, 6, 8, -2, -1, 1, 7, 8, -3, -2, 1, 7, 8, -1, -1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.67572 | 2.67572 | 1.73407 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.22222 | 0.11111 | 0.11111 |
| 0 | 0 | 0.5 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.93562 | 1.93562 | 1.15912 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.08368 | 0.16736 | 0.2442 |
| 0 | 0 | 0.5 |
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 |
|---|---|---|---|---|---|
 |
hqc546 | *2626 | (3,3,2) | {12,3,12} | {5.5.5.5.5.5.5.5.5.5.5.5}{5.4.5}... |