s-net: sqc3965
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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 | {3,8} |
| Vertex coordination sequence | [(3, 14, 46, 99, 182, 269, 386, 505, 660, 813), (8, 28, 68, 134, 212, 306, 424, 550, 708, 866)] |
| Wells’ vertex symbol | [3.5^2, 3^4.5^6.6^8.7^6.8^4] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 4, 0, 1, 0, 1, 5, 0, 0, 0, 1, 5, 1, 0, 0, 1, 6, 0, 0, 0, 1, 7, 0, 0, 0, 2, 4, 0, 0, 0, 2, 7, 0, 0, 1, 3, 5, 0, 0, 0, 3, 6, -1, 1, 1, 4, 5, 0, 0, 1, 4, 5, 1, -1, -1, 4, 7, 0, -1, 0, 4, 8, 0, 0, 0, 4, 9, 0, 0, 0, 5, 6, -1, 0, 0, 5, 8, 0, 0, -1, 5, 9, -1, 1, 1, 8, 9, -1, 1, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.63333 | 3.63333 | 2.72488 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.375 | 0 |
| 0 | 0.5 | 0.5 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.66864 | 1.66864 | 2.60849 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.21785 | 0 |
| 0 | 0.5 | 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 |
|---|---|---|---|---|---|
 |
hqc408 | *2626 | (2,3,3) | {8,3} | {6.3.18.3.6.3.18.3}{3.18.18} |