s-net: sqc3740
 |
|
| Systre crystallographic geometry file (.cgd) |
Other names
| Keywords | sphere packing |
| Fisher-Koch-Sowa symbol | 5/4/t49 |
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, 14, 31, 58, 94, 138, 190, 250, 318, 394)] |
| Wells’ vertex symbol | [4^6.6^4] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 6, 0, 0, 0, 2, 6, 0, 1, 0, 2, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 6, 0, 0, 1, 3, 7, 0, 0, 1, 3, 8, -1, 0, 0, 4, 6, 0, 0, 1, 4, 7, 1, -1, 2, 4, 8, 0, -1, 1, 4, 8, 0, 0, 1, 5, 6, 0, 1, 0, 5, 7, 0, 0, 1, 5, 7, 1, 0, 1, 5, 8, 0, 0, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I41/amd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.36287 | 2.36287 | 3.73627 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.125 | 0 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I41/amd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.00011 | 2.00011 | 3.99997 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.24996 | 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 |
|---|---|---|---|---|---|
 |
hqc128 | 2*222 | (1,3,2) | {5} | {4.6.6.6.4} |