s-net: sqc4040


  
Barycentric geometry maximising unit cell volume
 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)(4,5)
Vertex degrees {6,4,8,8}
Vertex coordination sequence [(6, 14, 38, 102, 180, 308, 436, 616, 790, 962), (4, 18, 44, 106, 190, 302, 444, 595, 775, 966), (8, 36, 92, 162, 248, 376, 512, 650, 824, 1060), (8, 16, 44, 100, 194, 312, 440, 626, 800, 968)]
Wells’ vertex symbol [3^4.4^2.5^2.6^6.7, 3^2.4.5^2.6, 4^4.5^8.6^12.8^4, 3^8.4^8.5^8.6^4]
Systre key (3, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 6, 0, 0, 0, 2, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 6, -1, -1, 0, 3, 7, -1, 0, 0, 3, 8, 0, -1, 0, 4, 6, 0, -1, 1, 4, 7, 0, 0, 1, 4, 8, 0, -1, 1, 5, 6, -1, 0, 1, 5, 7, -1, 0, 1, 5, 8, 0, 0, 1, 6, 7, 0, 0, 0, 6, 7, 0, 1, 0, 6, 8, 0, 0, 0, 6, 8, 1, 0, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: P-42m

Parameters:

a b c alpha beta gamma
1.81328 1.81328 3.31122 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0.5 0
0.25 0.25 0.125
0.5 0.5 0.5
0 0 0

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: P-42m

Parameters:

a b c alpha beta gamma
1.24166 1.24166 3.87944 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0.5 0
0.24999 0.24999 0.25
0.5 0.5 0.5
0 0 0

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
Net details hqc1858 *2244 (4,5,2) {8,4,6,8} {5.5.5.5.5.5.5.5}{5.3.3.5}{5.3.3...

h-nets with edge collapse

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