s-net: sqc139
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 3 |
| Edges per primitive translational unit | 8 |
| Transitivity (vertex,edge) | (3,5) |
| Vertex degrees | {8,4,4} |
| Vertex coordination sequence | [(8, 32, 78, 166, 302, 486, 718, 998, 1326, 1702), (4, 20, 72, 172, 320, 516, 760, 1052, 1392, 1780), (4, 16, 46, 106, 216, 372, 576, 828, 1128, 1476)] |
| Wells’ vertex symbol | [4^8.5^8.6^12, 5.6^4.8, 4^4.5.6] |
| Systre key | (3, 1, 1, -1, 0, 0, 1, 2, 0, 0, 0, 1, 2, 0, 1, 0, 2, 2, -1, -1, 0, 2, 2, -1, 1, 0, 2, 3, -1, 0, 0, 2, 3, 0, 0, 0, 3, 3, 0, 0, -1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.16082 | 1.83562 | 0.98158 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
| 0.5 | 0 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 0.97113 | 1.35816 | 1.25137 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
| 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 |
|---|---|---|---|---|---|
 |
hqc751 | *222222 | (3,5,2) | {4,8,4} | {4.4.4.4}{4.8.8.4.4.8.8.4}{8.8.8.8} |