s-net: sqc3055


 
Systre crystallographic geometry file (.cgd)

Other names

RCSR name etf
Keywords sphere packing
Fisher-Koch-Sowa symbol 3/8/h3

Links to this net in other databases

RCSR topcryst

Topological data

Vertices per primitive translational unit 12
Edges per primitive translational unit 18
Transitivity (vertex,edge)(1,3)
Vertex degrees {3}
Vertex coordination sequence [(3, 6, 12, 20, 30, 46, 68, 98, 123, 148)]
Wells’ vertex symbol [8^3]
Systre key (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 2, 5, 0, 0, 0, 2, 6, 0, 0, 0, 3, 6, 1, 0, 0, 3, 7, 0, 0, 0, 4, 5, 0, 1, 0, 4, 8, 0, 0, 0, 5, 9, 0, 0, 0, 6, 10, 0, 0, 0, 7, 10, 0, 0, 1, 7, 11, 0, 0, 0, 8, 9, -1, 1, 0, 8, 11, -1, 0, 0, 9, 12, 0, 0, 0, 10, 12, -1, 0, 0, 11, 12, 0, 0, 1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: R-3c

Parameters:

a b c alpha beta gamma
6.76552 6.76552 2.80063 90.0 90.0 120.0

Vertex positions:

X-pos Y-pos Z-pos
0.35556 0.11111 0.05556

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: R-3c

Parameters:

a b c alpha beta gamma
6.33857 6.33857 2.98969 90.0 90.0 120.0

Vertex positions:

X-pos Y-pos Z-pos
0.35948 0.11716 0.07687

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 hqc17 *23(18) (1,1,1) {3} {18.18.18}

h-nets with edge collapse

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