s-net: sqc2077
 |
|
| Systre crystallographic geometry file (.cgd) |
Other names
| Keywords | sphere packing |
| Fisher-Koch-Sowa symbol | 4/6/t7 |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 8 |
| Edges per primitive translational unit | 16 |
| Transitivity (vertex,edge) | (1,2) |
| Vertex degrees | {4} |
| Vertex coordination sequence | [(4, 12, 30, 56, 92, 144, 212, 291, 380, 483)] |
| Wells’ vertex symbol | [6^5.8] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 5, 0, 0, 0, 2, 6, 0, 0, 0, 3, 6, 0, 0, 1, 3, 6, 0, 1, 0, 3, 7, 0, 0, 0, 4, 5, 1, -1, 0, 4, 5, 1, -1, 1, 4, 7, 0, -1, 0, 5, 8, 0, 0, 0, 6, 8, 0, -1, 0, 7, 8, 0, 0, 1, 7, 8, 1, -1, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I41/acd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.90511 | 2.90511 | 2.37201 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.16667 | 0.41667 | 0.125 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I41/acd
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.84773 | 1.84773 | 2.41704 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.03588 | 0.28588 | 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 |
|---|---|---|---|---|---|
 |
hqc12 | *248 | (1,1,1) | {4} | {8.8.8.8} |