s-net: sqc2889


 
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, 72, 128, 202, 292, 398, 524, 664), (6, 20, 50, 100, 164, 244, 346, 460, 590, 744)]
Wells’ vertex symbol [4^2.6, 4^4.6^8.8^3]
Systre key (3, 1, 2, 0, 0, 0, 1, 2, 2, -1, 0, 1, 3, 0, 0, 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, 7, 0, 0, 0, 2, 8, 0, 0, 0, 3, 4, 1, -1, 0, 3, 5, -1, 0, 0, 3, 6, 0, 0, 1, 3, 6, 2, -1, 1, 4, 8, -1, 0, -1, 5, 7, 1, -1, -1, 6, 7, 1, -1, -1, 6, 8, -1, 0, -1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Cmma

Parameters:

a b c alpha beta gamma
2.12562 4.50921 1.98938 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.25 0 0.35714
0 0.08333 0.21429

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Cmma

Parameters:

a b c alpha beta gamma
1.72904 4.19633 0.48537 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.25 0 0.38467
0 0.12876 0.63747

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 hqc990 *22222 (2,5,3) {6,3} {4.6.4.4.6.4}{6.4.4}

h-nets with edge collapse

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