s-net: sqc2272


 
Systre crystallographic geometry file (.cgd)

Links to this net in other databases

topcryst

Topological data

Vertices per primitive translational unit 6
Edges per primitive translational unit 17
Transitivity (vertex,edge)(2,5)
Vertex degrees {6,5}
Vertex coordination sequence [(6, 18, 38, 66, 102, 146, 198, 258, 326, 402), (5, 14, 35, 64, 100, 144, 196, 256, 324, 400)]
Wells’ vertex symbol [3^2.4^7.5^2.6^4, 3^2.4^4.6^4]
Systre key (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 6, 0, 0, 0, 2, 3, 0, 1, 0, 2, 4, -1, 2, -1, 2, 5, 0, 0, 1, 2, 6, -1, 1, 0, 2, 6, 0, 1, 0, 3, 4, -1, 1, -1, 3, 5, 0, -1, 1, 3, 6, -1, 1, 0, 4, 5, 0, -1, 1, 4, 6, 0, 0, 0, 5, 6, 0, 0, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Fmmm

Parameters:

a b c alpha beta gamma
3.43096 4.20148 2.24459 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.25 0.08333 0.25
0 0 0.66667

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Fmmm

Parameters:

a b c alpha beta gamma
3.46414 4.00002 2.00005 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.25 0.12499 0.25
0 0 0.74997

Edge end points:

Hyperbolic sources

h-nets with faithful topology

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h-nets with edge collapse