s-net: sqc8993
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 18 |
| Edges per primitive translational unit | 36 |
| Transitivity (vertex,edge) | (2,5) |
| Vertex degrees | {6,3} |
| Vertex coordination sequence | [(6, 18, 39, 68, 104, 153, 212, 271, 336, 428), (3, 8, 23, 53, 91, 129, 190, 258, 323, 411)] |
| Wells’ vertex symbol | [3.4^4.5^4.6^4.7^2, 4.6.7] |
| 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, 1, 7, 0, 0, 0, 2, 3, 0, 0, 0, 2, 5, 1, 0, 0, 2, 8, 0, 0, 0, 2, 9, 0, 0, 0, 2, 10, 0, 0, 0, 3, 4, 0, 1, 0, 3, 8, -1, 1, 0, 3, 11, 0, 0, 0, 3, 12, 0, 0, 0, 4, 5, 1, -1, 0, 4, 8, 0, 0, 0, 4, 13, 0, 0, 0, 4, 14, 0, 0, 0, 5, 8, -1, 1, 0, 5, 15, 0, 0, 0, 5, 16, 0, 0, 0, 6, 10, 0, 0, 0, 6, 17, 0, 0, 0, 7, 12, 0, 0, 0, 7, 18, 0, 0, 0, 8, 17, 0, 0, 1, 8, 18, 0, 0, 1, 9, 11, 0, 0, 0, 9, 13, 1, 0, -1, 10, 14, 1, 0, -1, 11, 15, 1, 0, -1, 12, 16, 1, 0, -1, 13, 18, 0, 0, 1, 14, 16, 1, -1, 0, 15, 17, -1, 1, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 3.45972 | 3.45972 | 8.85315 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.18182 | 0.09091 | 0.29167 |
| 0 | 0.21212 | 0.20833 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.41365 | 2.41365 | 8.98814 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.27618 | 0.13809 | 0.30119 |
| 0.11856 | 0.35208 | 0.11611 |
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 |
|---|---|---|---|---|---|
 |
hqc1993 | *2626 | (2,5,5) | {6,3} | {6.4.4.6.4.4}{4.12.6} |