s-net: sqc249


 
Systre crystallographic geometry file (.cgd)

Other names

RCSR name kag
Keywords sphere packing
Fisher-Koch-Sowa symbol 6/3/h13

Links to this net in other databases

RCSR topcryst

Topological data

Vertices per primitive translational unit 3
Edges per primitive translational unit 9
Transitivity (vertex,edge)(1,2)
Vertex degrees {6}
Vertex coordination sequence [(6, 18, 40, 72, 112, 162, 220, 288, 364, 450)]
Wells’ vertex symbol [3^2.4^8.6^5]
Systre key (3, 1, 1, -1, 0, 0, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 3, 0, 0, 0, 1, 3, 0, 1, 0, 2, 2, -1, 0, 0, 2, 3, 0, 0, -1, 2, 3, 0, 1, 0, 3, 3, -1, 0, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: P6/mmm

Parameters:

a b c alpha beta gamma
1.99982 1.99982 1.00018 90.0 90.0 120.0

Vertex positions:

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

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: P6/mmm

Parameters:

a b c alpha beta gamma
2.0 2.0 1.0 90.0 90.0 120.0

Vertex positions:

X-pos Y-pos Z-pos
0 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 hqc37 *2226 (1,2,2) {6} {6.4.4.6.4.4}

h-nets with edge collapse

No items to display.