s-net: sqc2708
 |
|
| Systre crystallographic geometry file (.cgd) |
Other names
| RCSR name | sms |
| Keywords | sphere packing |
| Fisher-Koch-Sowa symbol | 6/3/h2 |
Links to this net in other databases
| RCSR | topcryst |
Topological data
| Vertices per primitive translational unit | 6 |
| Edges per primitive translational unit | 18 |
| Transitivity (vertex,edge) | (1,3) |
| Vertex degrees | {6} |
| Vertex coordination sequence | [(6, 17, 42, 68, 110, 153, 212, 272, 348, 425)] |
| Wells’ vertex symbol | [3^4.4^4.5^4.6^3] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 0, 1, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 3, -1, 0, 0, 2, 5, -1, 0, 0, 2, 5, 0, 0, 1, 2, 6, 0, 0, 0, 3, 4, 0, 0, 0, 3, 4, 1, 0, 1, 3, 6, 1, 0, 0, 4, 5, 0, 0, 0, 4, 6, 0, 0, 0, 4, 6, 1, 0, 0, 5, 6, 1, 0, 0, 5, 6, 1, 1, 0) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.96443 | 2.96443 | 4.59254 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.06667 | 0.13333 | 0.08333 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.51266 | 2.51266 | 3.91096 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0.13266 | 0.26532 | 0.10439 |
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 |
|---|---|---|---|---|---|
 |
hqc203 | 2*26 | (1,3,3) | {6} | {6.4.3.3.3.4} |