s-net: sqc201


 
Systre crystallographic geometry file (.cgd)

Links to this net in other databases

topcryst

Topological data

Vertices per primitive translational unit 3
Edges per primitive translational unit 9
Transitivity (vertex,edge)(2,5)
Vertex degrees {12,3}
Vertex coordination sequence [(12, 52, 136, 268, 448, 676, 952, 1276, 1648, 2068), (3, 17, 67, 164, 308, 500, 740, 1028, 1364, 1748)]
Wells’ vertex symbol [4^47.6^19, 4^3]
Systre key (3, 1, 1, -1, -2, 0, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 1, 0, 0, -1, 1, 2, -1, -1, 0, 1, 2, 0, 0, 0, 1, 3, -1, -1, 0, 1, 3, 0, 0, 0, 2, 3, 0, 0, 1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Pmmm

Parameters:

a b c alpha beta gamma
1.07153 1.07153 1.51537 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0 0
0 0.5 0.25

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Pmmm

Parameters:

a b c alpha beta gamma
0.69924 0.91934 1.04836 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0 0 0
0 0.5 0.11613

Edge end points:

Hyperbolic sources

h-nets with faithful topology

No items to display.

h-nets with edge collapse