s-net: sqc254


 
Systre crystallographic geometry file (.cgd)

Links to this net in other databases

topcryst

Topological data

Vertices per primitive translational unit 4
Edges per primitive translational unit 9
Transitivity (vertex,edge)(3,3)
Vertex degrees {4,6,4}
Vertex coordination sequence [(4, 12, 30, 58, 94, 138, 190, 250, 318, 394), (6, 18, 38, 66, 102, 146, 198, 258, 326, 402), (4, 8, 20, 48, 86, 130, 182, 242, 310, 386)]
Wells’ vertex symbol [4^4.6^2, 4^4.6^10.8, 4^4.6^2]
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, 4, 0, 0, 0, 2, 4, 0, 1, 0, 3, 4, 0, 0, 0, 3, 4, 0, 0, 1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: P4/mmm

Parameters:

a b c alpha beta gamma
1.8 1.8 1.8 90.0 90.0 90.0

Vertex positions:

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

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: P4/mmm

Parameters:

a b c alpha beta gamma
1.99996 1.99996 1.00017 90.0 90.0 90.0

Vertex positions:

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

Edge end points:

Hyperbolic sources

h-nets with faithful topology

No items to display.

h-nets with edge collapse