s-net: sqc3625


  
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 20
Transitivity (vertex,edge)(4,6)
Vertex degrees {6,6,4,4}
Vertex coordination sequence [(6, 21, 56, 113, 174, 280, 368, 532, 648, 864), (6, 18, 54, 102, 186, 250, 390, 494, 672, 816), (4, 15, 38, 89, 146, 242, 326, 478, 606, 780), (4, 12, 36, 76, 130, 210, 316, 442, 578, 762)]
Wells’ vertex symbol [3^4.4^3.5^2.6^5.7, 3^2.4^2.5^3.6^6.7^2, 4.5^2.6^2.8, 5^2.6.7^2.8]
Systre key (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 3, 0, 0, 1, 2, 4, 0, 1, 0, 3, 5, 0, 0, 0, 3, 6, 0, 0, 0, 4, 5, -1, -1, 0, 4, 6, 0, 0, 1, 5, 7, 0, -1, 0, 5, 7, 0, 0, 0, 5, 8, 0, 0, -1, 5, 8, 0, 0, 0, 6, 7, -1, -2, 0, 6, 7, 0, -1, 0, 6, 8, -1, -1, -1, 6, 8, 0, -1, 0, 7, 8, 0, 0, 0, 7, 8, 0, 1, -1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: I212121

Parameters:

a b c alpha beta gamma
2.74094 2.20373 2.47434 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0.25 0.25
0.25 0.58333 0
0 0.25 0.625
0.33333 0 0.25

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: I212121

Parameters:

a b c alpha beta gamma
2.88708 2.00033 1.91566 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0.25 0.25077
0.25 0.49929 0
0 0.25 0.74878
0.20018 0 0.25

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 hqc1475 *222222 (4,5,2) {6,6,4,4} {3.7.3.3.7.3}{3.7.7.3.7.7}{7.7.7...

h-nets with edge collapse

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