s-net: sqc1819
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 4 |
| Edges per primitive translational unit | 16 |
| Transitivity (vertex,edge) | (2,3) |
| Vertex degrees | {12,4} |
| Vertex coordination sequence | [(12, 50, 116, 206, 324, 466, 636, 830, 1052, 1298), (4, 34, 100, 194, 308, 454, 620, 818, 1036, 1286)] |
| Wells’ vertex symbol | [3^10.4^32.5^16.6^8, 3^2.4^4] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 1, 2, 1, 0, 0, 2, 2, -1, 0, 0, 2, 2, 0, -1, 1, 2, 3, 0, 0, 0, 2, 3, 0, 0, 1, 2, 3, 0, 1, 0, 2, 3, 1, 0, 0, 3, 3, -1, 0, 0, 3, 3, 0, -1, 1, 3, 4, 0, 0, 0, 3, 4, 0, 0, 1, 3, 4, 0, 1, 0, 3, 4, 1, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I41/amd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.24691 | 1.24691 | 2.69363 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.25 | 0.375 |
| 0 | 0.75 | 0.125 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I41/amd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.00091 | 1.00091 | 3.46166 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.25 | 0.375 |
| 0 | 0.75 | 0.125 |
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 |
|---|---|---|---|---|---|
 |
hqc643 | *222222 | (2,4,3) | {12,4} | {4.3.6.6.3.4.4.3.6.6.3.4}{3.6.3.6} |