s-net: sqc12
 |
|
| Systre crystallographic geometry file (.cgd) |
Other names
| RCSR name | bnn |
| Keywords | sphere packing |
| Fisher-Koch-Sowa symbol | 5/4/h5 |
Links to this net in other databases
| RCSR | topcryst |
Topological data
| Vertices per primitive translational unit | 2 |
| Edges per primitive translational unit | 5 |
| Transitivity (vertex,edge) | (1,2) |
| Vertex degrees | {5} |
| Vertex coordination sequence | [(5, 14, 29, 50, 77, 110, 149, 194, 245, 302)] |
| Wells’ vertex symbol | [4^6.6^4] |
| Systre key | (3, 1, 1, -1, 0, 0, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 2, 2, -1, 0, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: P6/mmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.83008 | 1.83008 | 0.91511 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.33333 | 0.66667 | 0 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: P6/mmm
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.73207 | 1.73207 | 0.99999 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.33333 | 0.66667 | 0 |
Edge end points:
Hyperbolic sources
h-nets with faithful topology
3 records listed.| Image | h-net name | Orbifold symbol | Transitivity (Vert,Edge,Face) | Vertex Degree | 2D Vertex Symbol |
|---|---|---|---|---|---|
 |
hqc111 | *2626 | (1,3,3) | {5} | {6.4.12.12.4} |
 |
hqc147 | 2*26 | (1,3,2) | {5} | {6.4.4.4.4} |
 |
hqc110 | *2226 | (1,3,3) | {5} | {6.4.4.4.4} |
