s-net: sqc18
 |
|
| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 2 |
| Edges per primitive translational unit | 6 |
| Transitivity (vertex,edge) | (2,4) |
| Vertex degrees | {8,4} |
| Vertex coordination sequence | [(8, 32, 72, 128, 200, 288, 392, 512, 648, 800), (4, 20, 58, 114, 186, 274, 378, 498, 634, 786)] |
| Wells’ vertex symbol | [4^13.5^12.6^3, 5^4.6^2] |
| Systre key | (3, 1, 1, -1, -2, 0, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 2, 2, -1, -1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 0.82459 | 2.0196 | 0.82415 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0.5 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 0.81009 | 2.08804 | 0.8103 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0.5 | 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 |
|---|---|---|---|---|---|
 |
hqc208 | *222222 | (2,4,2) | {8,4} | {4.8.8.4.4.8.8.4}{8.8.8.8} |