s-net: sqc4082


 
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 22
Transitivity (vertex,edge)(2,7)
Vertex degrees {4,7}
Vertex coordination sequence [(4, 13, 36, 73, 119, 174, 239, 314, 399, 494), (7, 22, 47, 82, 127, 182, 247, 322, 407, 502)]
Wells’ vertex symbol [3.4^3.6^2, 3^2.4^10.5^4.6^5]
Systre key (3, 1, 1, -1, 0, 0, 1, 2, 0, 0, 0, 1, 2, 0, 1, 0, 1, 3, -1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 2, -1, 0, 0, 2, 5, -1, 0, 0, 2, 5, 0, 0, 0, 2, 6, 0, 0, 0, 3, 5, 0, 1, 0, 3, 7, 0, 0, 0, 4, 4, -1, 0, 0, 4, 6, 0, 0, 0, 4, 6, 0, 1, 0, 4, 7, -1, 0, 1, 4, 7, 0, 0, 1, 5, 8, 0, 0, 0, 6, 6, -1, 0, 0, 6, 8, -1, 0, 1, 6, 8, 0, 0, 1, 7, 8, 0, 1, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Pmmm

Parameters:

a b c alpha beta gamma
1.14013 3.42023 2.54805 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0.16667 0.4
0.5 0.33333 0.3

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Pmmm

Parameters:

a b c alpha beta gamma
1.00005 3.73195 2.00017 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0.13398 0.25006
0.5 0.36602 0.25

Edge end points:

Hyperbolic sources

h-nets with faithful topology

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h-nets with edge collapse