s-net: sqc2950


 
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 18
Transitivity (vertex,edge)(2,5)
Vertex degrees {3,6}
Vertex coordination sequence [(3, 10, 31, 74, 131, 198, 301, 400, 525, 670), (6, 18, 44, 90, 152, 228, 328, 438, 564, 718)]
Wells’ vertex symbol [3.6^2, 3^2.4^2.5^2.6^4.7^4.8]
Systre key (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 3, 2, -1, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 6, 0, 0, 0, 2, 3, 0, 1, -1, 2, 6, 0, 0, 1, 2, 6, 2, -1, 1, 2, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 4, 0, 0, 0, 3, 5, -2, 1, 0, 3, 6, 0, 0, 1, 4, 8, -1, 0, 0, 5, 7, 1, -1, 0, 6, 7, 0, 0, -1, 6, 8, -2, 1, -1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Cmma

Parameters:

a b c alpha beta gamma
4.92064 2.20058 2.20058 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.2 0 0.5
0.15 0.25 0.375

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Cmma

Parameters:

a b c alpha beta gamma
3.46016 1.66913 1.23876 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.10551 0 0.5
0.14459 0.25 0.27703

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 hqc987 *22222 (2,5,3) {6,3} {4.3.8.8.3.4}{3.8.8}

h-nets with edge collapse

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