Demo

You entered the OD groupoid family symbol: pb1(1)11 { - - (4^+_4) n_(2,-1/2+r+s) -} [r,-]

The OD groupoid family parsed fine.

General OD Family Symbol

pb1 (1) 11 
{--(4+4)n2,-1/2+r'+s'-}
 [r']      

Reduced general OD Family Symbol

pb1 (1) 11 
{--(4+4)n2,-1/2+s'-}
 [0]      

General Data

OD family of layers

Kinds of layers:N=1
Category:II (single)
Pointgroup:4mm (C4v)
Crystal system:tetragonal
Layer system:square
Common lattice:same
Common lattice size (rel. to global):1
Layer planes:(001)
c0(0,0,1)
Global lattice restriction:ab=0, |b|=|a|
User supplied lattice restriction:none
Lattice restriction derived from layers:ab=0, |b|=|a|

Layer Data

Layer 0:

Type:Layer group
Symbol:pb1(1)
Crystal system:monoclinic
Layer system:rectangular
Polarity:polar
Lattice restriction (instrinsic):ab=0
Lattice restriction (extrinsic):ab=0, |b|=|a|
Lattice (rel. to global):same
Lattice (rel. to common):same
Lattice size (rel. to global):1
Lattice size (rel. to common):1
Order (modulo lattice):2
Order (modulo global lattice):2
Order (modulo common lattice):2
Floating origin:0,y,z

Symmetry operations:

x,y,z1
-x,y+1/2,zb

Special positions:

x,y,z

Centring vectors:

none

Special parameters

Special parameters for σ-POs (right)

  1. (general)
    Codes: general
    1. No subparameters.
  2. r'=0 (reduced)
    Codes: reduced
    1. No subparameters.
  3. r'=r, s'=s+l, l∈ℤ (user)
    Codes: user-1
    1. l=0