s-net: sqc3891
 |
|
| Systre crystallographic geometry file (.cgd) |
Other names
| RCSR name | stw |
Links to this net in other databases
| RCSR | topcryst |
Topological data
| Vertices per primitive translational unit | 12 |
| Edges per primitive translational unit | 20 |
| Transitivity (vertex,edge) | (2,2) |
| Vertex degrees | {3,4} |
| Vertex coordination sequence | [(3, 7, 12, 19, 39, 56, 71, 100, 122, 151), (4, 6, 12, 25, 36, 55, 80, 90, 124, 167)] |
| Wells’ vertex symbol | [4.12^2, 4^2.8^4] |
| Systre key | (3, 1, 2, 0, 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, 3, 7, 0, 0, 0, 3, 8, 0, 0, 0, 4, 9, 0, 0, 0, 4, 10, 0, 0, 0, 5, 9, 0, 0, 0, 5, 11, 0, 0, 0, 6, 9, 1, 0, 0, 6, 12, 0, 0, 0, 7, 10, 0, 0, 1, 7, 11, 0, 1, 0, 8, 9, 1, -1, 1, 8, 12, 0, -1, 1, 10, 12, -1, 0, -1, 11, 12, -1, -1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: I4/mmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 4.5723 | 4.5723 | 3.73327 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.16667 | 0.16667 | 0.125 |
| 0 | 0.16667 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: I4/mmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 4.43074 | 4.43074 | 3.47769 | 90.0 | 90.0 | 90.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.19067 | 0.19067 | 0.15385 |
| 0 | 0.19037 | 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 |
|---|---|---|---|---|---|
 |
hqc169 | *2224 | (2,2,2) | {3,4} | {12.4.12}{12.4.12.4} |