s-net: sqc3890


  
Barycentric geometry maximising unit cell volume
 Systre crystallographic geometry file (.cgd)

Other names

RCSR name stj

Links to this net in other databases

RCSR topcryst

Topological data

Vertices per primitive translational unit 12
Edges per primitive translational unit 20
Transitivity (vertex,edge)(2,2)
Vertex degrees {4,3}
Vertex coordination sequence [(4, 6, 12, 26, 36, 52, 80, 94, 124, 168), (3, 7, 12, 21, 39, 54, 71, 103, 126, 149)]
Wells’ vertex symbol [4^2.10^4, 4.10^2]
Systre key (3, 1, 2, 0, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 2, 6, 0, 0, 0, 2, 7, 0, 0, 0, 3, 7, 0, 0, 0, 3, 8, 0, 0, 0, 4, 7, 1, 0, 0, 4, 9, 0, 0, 0, 5, 7, 1, 0, 0, 5, 10, 0, 0, 0, 6, 11, 0, 0, 0, 6, 12, 0, 0, 0, 8, 11, 1, 1, 0, 8, 12, 0, 1, 0, 9, 11, 0, 0, 1, 9, 12, 0, 0, 1, 10, 11, 1, 1, 1, 10, 12, 0, 1, 1)

Geometric data

Systre equilibrium placement (barycentric embedding) maximising unit cell volume

Spacegroup: I4/mmm

Parameters:

a b c alpha beta gamma
5.22408 5.22408 2.61204 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.25 0.25 0.25
0.125 0.25 0

Edge end points:

Systre coordinates favouring equal edge-lengths

Spacegroup: I4/mmm

Parameters:

a b c alpha beta gamma
4.94906 4.94906 2.70241 90.0 90.0 90.0

Vertex positions:

X-pos Y-pos Z-pos
0.25 0.25 0.25
0.10103 0.24998 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 hqc169 *2224 (2,2,2) {3,4} {12.4.12}{12.4.12.4}

h-nets with edge collapse

No items to display.