s-net: sqc2346


 
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 18
Transitivity (vertex,edge)(2,5)
Vertex degrees {14,4}
Vertex coordination sequence [(14, 62, 142, 254, 398, 574, 782, 1022, 1294, 1598), (4, 38, 122, 242, 370, 570, 746, 1026, 1250, 1610)]
Wells’ vertex symbol [3^20.4^40.5^26.6^5, 3^4.4^2]
Systre key (3, 1, 1, -1, 0, 0, 1, 2, -2, -1, 1, 1, 2, -2, 0, 0, 1, 2, -2, 0, 1, 1, 2, -1, 0, 0, 1, 2, -1, 0, 1, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 1, 3, 0, 0, 0, 1, 3, 0, 1, 0, 1, 4, 0, -1, 1, 1, 4, 0, 0, 0, 2, 2, -1, 0, 0, 2, 3, 0, 0, 0, 2, 3, 2, 1, -1, 2, 4, 0, -1, 0, 2, 4, 2, 0, 0)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: Cmma

Parameters:

a b c alpha beta gamma
1.75801 2.48478 0.87853 90.0 90.0 90.0

Vertex positions:

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

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: Cmma

Parameters:

a b c alpha beta gamma
1.75736 2.48535 0.87865 90.0 90.0 90.0

Vertex positions:

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

Edge end points:

Hyperbolic sources

h-nets with faithful topology

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h-nets with edge collapse