s-net: sqc3587
 |
|
| Systre crystallographic geometry file (.cgd) |
Other names
| Keywords | sphere packing |
| Fisher-Koch-Sowa symbol | 5/4/t48 |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 8 |
| Edges per primitive translational unit | 20 |
| Transitivity (vertex,edge) | (1,3) |
| Vertex degrees | {5} |
| Vertex coordination sequence | [(5, 17, 40, 75, 116, 163, 226, 292, 370, 456)] |
| Wells’ vertex symbol | [4^3.5^5.6^2] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 6, 0, 0, 0, 2, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 4, 0, 1, 0, 3, 5, -1, 0, 0, 3, 6, 0, -1, 1, 3, 6, 0, 0, 1, 4, 5, 0, -1, 0, 4, 8, 0, 0, 0, 4, 8, 1, 0, 0, 5, 7, 0, -1, 1, 5, 7, 0, 0, 1, 6, 7, -1, 0, 0, 6, 8, 0, 1, 0, 7, 8, 0, 1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I41/amd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.83503 | 1.83503 | 5.19026 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0.1875 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I41/amd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.78047 | 1.78047 | 5.15785 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0.53082 | 0.20584 |
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 |
|---|---|---|---|---|---|
 |
hqc128 | 2*222 | (1,3,2) | {5} | {4.6.6.6.4} |