s-net: sqc518


 
Systre crystallographic geometry file (.cgd)

Other names

Keywords sphere packing
Fisher-Koch-Sowa symbol 5/4/t5

Links to this net in other databases

topcryst

Topological data

Vertices per primitive translational unit 4
Edges per primitive translational unit 10
Transitivity (vertex,edge)(1,2)
Vertex degrees {5}
Vertex coordination sequence [(5, 13, 28, 49, 73, 106, 145, 185, 236, 293)]
Wells’ vertex symbol [4^6.6^4]
Systre key (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 3, 1, 0, 0, 1, 4, 0, 0, 0, 2, 3, 0, 1, 0, 2, 4, 0, 0, 1, 2, 4, 1, 0, 1, 3, 4, 0, 0, 1, 3, 4, 1, 0, 1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: P42/mmc

Parameters:

a b c alpha beta gamma
2.31747 2.31747 1.33821 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.16667 0 0

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: P42/mmc

Parameters:

a b c alpha beta gamma
1.99973 1.99973 1.41461 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.24996 0 0

Edge end points:

Hyperbolic sources

h-nets with faithful topology

No items to display.

h-nets with edge collapse