s-net: sqc4820


 
Systre crystallographic geometry file (.cgd)

Links to this net in other databases

topcryst

Topological data

Vertices per primitive translational unit 8
Edges per primitive translational unit 24
Transitivity (vertex,edge)(2,7)
Vertex degrees {5,7}
Vertex coordination sequence [(5, 17, 50, 110, 194, 298, 422, 566, 732, 918), (7, 24, 58, 113, 194, 298, 422, 566, 732, 918)]
Wells’ vertex symbol [3.4^4.5^2.6^3, 3^2.4^11.5^7.6]
Systre key (3, 1, 1, -1, 0, 0, 1, 2, 0, 0, 0, 1, 2, 0, 1, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 2, -1, 0, 0, 2, 3, 0, -1, 0, 2, 4, 0, -1, 0, 2, 6, 0, 0, 0, 3, 3, 0, -1, 0, 3, 7, 0, 0, 0, 4, 4, 0, -1, 0, 4, 8, 0, 0, 0, 5, 5, -1, 0, 0, 5, 6, 0, 0, 0, 5, 6, 0, 1, 0, 5, 7, -1, 0, 1, 5, 8, 0, 0, 1, 6, 6, -1, 0, 0, 6, 7, -1, 0, 1, 6, 8, 0, 0, 1, 7, 7, 0, -1, 0, 8, 8, 0, -1, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Imma

Parameters:

a b c alpha beta gamma
1.45088 1.28953 7.32506 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.125 0.25 0.66667
0 0.0625 0.58333

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Imma

Parameters:

a b c alpha beta gamma
1.06466 1.16211 8.0029 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.13866 0.75 0.18519
0 0.00399 0.56649

Edge end points:

Hyperbolic sources

h-nets with faithful topology

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h-nets with edge collapse