s-net: sqc17
 |
|
| 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, 26, 64, 132, 232, 364, 528, 724, 952, 1212), (4, 16, 52, 120, 220, 352, 516, 712, 940, 1200)] |
| Wells’ vertex symbol | [4^21.6^7, 4.6^4.8] |
| Systre key | (3, 1, 1, -1, -2, 0, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 2, -1, -1, 0, 1, 2, 0, 0, 0, 2, 2, 0, 0, -1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 0.88316 | 1.52966 | 0.96739 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 0.5 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: Pmmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 0.88324 | 1.23781 | 1.08337 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 0 | 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 |
|---|---|---|---|---|---|
 |
hqc208 | *222222 | (2,4,2) | {8,4} | {4.8.8.4.4.8.8.4}{8.8.8.8} |