s-net: sqc81


 
Systre crystallographic geometry file (.cgd)

Links to this net in other databases

topcryst

Topological data

Vertices per primitive translational unit 2
Edges per primitive translational unit 8
Transitivity (vertex,edge)(2,4)
Vertex degrees {4,12}
Vertex coordination sequence [(4, 28, 86, 174, 294, 446, 630, 846, 1094, 1374), (12, 48, 116, 216, 348, 512, 708, 936, 1196, 1488)]
Wells’ vertex symbol [3^4.4^2, 3^8.4^37.5^18.6^3]
Systre key (3, 1, 1, -1, -2, 0, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 1, 0, 0, -1, 1, 2, -1, -2, 0, 1, 2, -1, -1, 0, 1, 2, 0, -1, 0, 1, 2, 0, 0, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Pmmm

Parameters:

a b c alpha beta gamma
1.01417 0.8779 1.75664 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0 0
0.5 0.5 0

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Pmmm

Parameters:

a b c alpha beta gamma
0.74395 1.19095 1.19216 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0 0
0.5 0.5 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 hqc641 *22222 (2,4,3) {12,4} {4.3.3.3.3.4.4.3.3.3.3.4}{3.3.3.3}

h-nets with edge collapse