s-net: sqc3945
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| Systre crystallographic geometry file (.cgd) |
Links to this net in other databases
| topcryst |
Topological data
| Vertices per primitive translational unit | 7 |
| Edges per primitive translational unit | 21 |
| Transitivity (vertex,edge) | (2,4) |
| Vertex degrees | {18,4} |
| Vertex coordination sequence | [(18, 96, 286, 588, 1002, 1528, 2166, 2916, 3778, 4752), (4, 33, 152, 388, 734, 1192, 1762, 2444, 3238, 4144)] |
| Wells’ vertex symbol | [4^42.5^36.6^63.7^12, 4^6] |
| Systre key | (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 2, -2, -1, 1, 2, 2, 0, -1, 0, 2, 2, 0, 0, -1, 2, 3, -2, -1, 1, 2, 3, -1, 0, 1, 2, 4, -1, 0, 1, 2, 4, 0, 1, 0, 2, 5, 0, 0, 0, 2, 5, 1, 0, 0, 2, 6, -1, -1, 0, 2, 6, 0, 0, 0, 2, 7, -1, -1, 1, 2, 7, 0, 0, 0, 3, 7, 0, 0, 0, 4, 6, -1, -1, 0, 5, 6, -2, -1, 1, 5, 7, -1, 0, 1) |
Geometric data
Systre equilibrium placement (barycentric embedding) maximising unit cell volume
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 2.64607 | 2.64607 | 1.78809 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.22222 | 0.11111 | 0.38889 |
Edge end points:
Systre coordinates favouring equal edge-lengths
Spacegroup: R-3m
Parameters:
| a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|
| 1.96732 | 1.96732 | 1.01136 | 90.0 | 90.0 | 120.0 |
Vertex positions:
| X-pos | Y-pos | Z-pos |
|---|---|---|
| 0 | 0 | 0 |
| 0.13756 | 0.27512 | 0.09964 |
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 |
|---|---|---|---|---|---|
 |
hqc447 | *2626 | (2,3,3) | {4,18} | {6.4.4.4}{4.4.4.4.4.4.4.4.4.4.4.... |