Modular crystals as modulated structures: the case of the lillianite homologous series

Authors:

Elcoro, Luis; Perez-Mato, J.M.; Friese, Karen; Petricek, Vaclav; Balic-Zunic, Tonci; Olsen, Lars Arnskov

Journal:

Acta Crystallographica Section B 64 684-701 (2008)

DOI:

https://doi.org/10.1107/S0108768108031492

B-IncStrDB ID: Rf4v0EQuMXe Entry date: 2021-10-26 Last revision: 2022-02-15

3D

Chemical data


Structural Formula Sum: Pb1 S1 [ Help ]

Formula weight: 239.2 Da [ Help ]

Absolute configuration: . [ Help ]

Crystallographic data and experimental details


Crystal system: orthorhombic [ Help ]

Space group name (H-M): B b m m [ Help ]

Space group name (Hall): -B -2xb;-2yb;-2z [ Help ]

Symmetry operations of the space group: [ Help ]

Operation code Operation in algebraic form
1 x,y,z
2 -x,-y,z
3 -x,y+1/2,-z
4 x,-y+1/2,-z
5 -x,-y,-z
6 x,y,-z
7 x,-y+1/2,z
8 -x,y+1/2,z
9 x+1/2,y,z+1/2
10 -x+1/2,-y,z+1/2
11 -x+1/2,y+1/2,-z+1/2
12 x+1/2,-y+1/2,-z+1/2
13 -x+1/2,-y,-z+1/2
14 x+1/2,y,-z+1/2
15 x+1/2,-y+1/2,z+1/2
16 -x+1/2,y+1/2,z+1/2

a: 13.535 Å [ Help ]

b: 20.6327 Å [ Help ]

c: 4.104 Å [ Help ]

α: 90 ° [ Help ]

β: 90 ° [ Help ]

γ: 90 ° [ Help ]

Volume: 1146.098 Å3 [ Help ]

Z: 176 [ Help ]

μ: 651.605 mm-1 [ Help ]

Absorption correction type: none [ Help ]

Minimum transmission factor: 1.000 [ Help ]

Maximum transmission factor: 1.000 [ Help ]

Refinement details


Total nb. of reflections: 1004 [ Help ]

Nb. of observed reflections: 619 [ Help ]

Intense reflections threshold: I>3σ(I) [ Help ]

Refinement based on: F [ Help ]

S(all): 1.78 [ Help ]

S(obs): 2.22 [ Help ]

Weighting scheme: sigma [ Help ]

Weighting scheme remarks: w=1/(σ2(F)+0.0001F2) [ Help ]

Δ/σ(max): 0.0000 [ Help ]

Δ/σ(mean): 0.0000 [ Help ]

Extinction method: none [ Help ]

Structural Information


Average Structure: [ Help ]

Atom site label Atom symbol x y z ADP type Uiso/equiv Symmetry multiplicity Occupancy Coords from (d)iffraction or (c)alculated Coords restraints or constraints Disordered cluster Disordered group
S1-1 S 0 0 0.5 Uani 0.040(4) 4 1 d . . .
S1-2 S 0.7366(6) 0.0962(5) 0.5 Uani 0.045(3) 8 1 d . . .
S1-3 S 0.4554(5) 0.1649(3) 0.5 Uani 0.037(2) 8 1 d . . .
S1-4 S 0.1837(7) 0.25 0.5 Uani 0.035(3) 4 1 d . . .
Pb1-1 Pb 0.86274(8) 0.04928(6) 0 Uani 0.0329(3) 8 1 d . . .
Pb1-2 Pb 0.59048(8) 0.13368(5) 0 Uani 0.0335(3) 8 1 d . . .
Pb1-3 Pb 0.32674(14) 0.25 0 Uani 0.0564(7) 4 1 d . . .

ADP components: [ Help ]

Atom site label Atom site symbol U11 U22 U33 U12 U13 U23
S1-1 S 0.046(6) 0.027(5) 0.048(7) 0.002(4) 0 0
S1-2 S 0.041(4) 0.055(5) 0.040(4) 0.013(3) 0 0
S1-3 S 0.036(4) 0.027(4) 0.047(5) 0.002(3) 0 0
S1-4 S 0.034(5) 0.032(5) 0.038(6) 0 0 0
Pb1-1 Pb 0.0313(5) 0.0341(6) 0.0332(5) 0.0004(4) 0 0
Pb1-2 Pb 0.0360(5) 0.0299(5) 0.0344(6) 0.0006(4) 0 0
Pb1-3 Pb 0.0457(11) 0.0804(16) 0.0431(11) 0 0 0

misfit

Chemical data


Structural Formula Sum: S Pb [ Help ]

Formula weight: 239.2 Da [ Help ]

Absolute configuration: . [ Help ]

Crystallographic data and experimental details


Crystal system: orthorhombic [ Help ]

Superspace group name: Bbmm(0β0)s00 [ Help ]

Symmetry operations of the superspace group: [ Help ]

Operation code Operation in algebraic form
1 x1,x2,x3,x4
2 -x1,-x2,x3,-x4
3 -x1,x2+1/2,-x3,x4+1/2
4 x1,-x2+1/2,-x3,-x4+1/2
5 -x1,-x2,-x3,-x4
6 x1,x2,-x3,x4
7 x1,-x2+1/2,x3,-x4+1/2
8 -x1,x2+1/2,x3,x4+1/2
9 x1+1/2,x2,x3+1/2,x4
10 -x1+1/2,-x2,x3+1/2,-x4
11 -x1+1/2,x2+1/2,-x3+1/2,x4+1/2
12 x1+1/2,-x2+1/2,-x3+1/2,-x4+1/2
13 -x1+1/2,-x2,-x3+1/2,-x4
14 x1+1/2,x2,-x3+1/2,x4
15 x1+1/2,-x2+1/2,x3+1/2,-x4+1/2
16 -x1+1/2,x2+1/2,x3+1/2,x4+1/2

a: 13.535 Å [ Help ]

b: 1.8757 Å [ Help ]

c: 4.104 Å [ Help ]

α: 90 ° [ Help ]

β: 90 ° [ Help ]

γ: 90 ° [ Help ]

Volume: 104.1907 Å3 [ Help ]

Modulation dimension: 1 [ Help ]

Measured independent wave vectors: [ Help ]

Wave vector id q_x q_y q_z
1 0.00000 0.09091 0.00000

Number of subsystems: 3 [ Help ]

Subsystem code: 1 [ Help ]

Subsystem description: 1st subsystem [ Help ]

W matrix:

1.0 0.0 0.0 0.0
0.0 1.0 0.0 0.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Subsystem code: 2 [ Help ]

Subsystem description: 2nd subsystem [ Help ]

W matrix:

1.0 0.0 0.0 0.0
0.0 1.0 0.0 1.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Subsystem code: 3 [ Help ]

Subsystem description: 3rd subsystem [ Help ]

W matrix:

1.0 0.0 0.0 0.0
0.0 1.0 0.0 -1.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Z: 16 [ Help ]

Cell measurement temperature: 293 K [ Help ]

μ: 651.605 mm-1 [ Help ]

Absorption correction type: none [ Help ]

Minimum transmission factor: 1.000 [ Help ]

Maximum transmission factor: 1.000 [ Help ]

Refinement details


Total nb. of reflections: 1004 [ Help ]

Nb. of observed reflections: 619 [ Help ]

Intense reflections threshold: I>3σ(I) [ Help ]

Refinement based on: F [ Help ]

R(obs): 0.0484 [ Help ]

wR(obs): 0.0506 [ Help ]

R(all): 0.0726 [ Help ]

wR(all): 0.0525 [ Help ]

S(all): 1.69 [ Help ]

S(obs): 2.08 [ Help ]

Nb. of reflections: 1004 [ Help ]

Nb. of parameters: 26 [ Help ]

Weighting scheme: sigma [ Help ]

Weighting scheme remarks: w=1/(σ2(F)+0.0001F2) [ Help ]

Δ/σ(max): 0.0047 [ Help ]

Δ/σ(mean): 0.0008 [ Help ]

Extinction method: B-C type 1 Gaussian isotropic (Becker & Coppens, 1974) [ Help ]

Extinction coefficient: 59(5) [ Help ]

Structural Information


Average Structure: [ Help ]

Atom site label Atom symbol Subsystem x y z ADP type Uiso/equiv Symmetry multiplicity Occupancy Coords from (d)iffraction or (c)alculated Coords restraints or constraints Disordered cluster Disordered group
S1 S 2 0.5 0.5 0 Uani 0.0405(12) 4 1 d . . .
Pb1 Pb 3 0 0 0 Uani 0.0394(2) 4 1 d . . .

ADP components: [ Help ]

Atom site label Atom site symbol U11 U22 U33 U12 U13 U23
S1 S 0.0385(18) 0.038(2) 0.045(2) 0 0 0
Pb1 Pb 0.0376(3) 0.0434(4) 0.0372(4) 0 0 0

Fourier Wave Vectors (explicit: q_x,q_y,q_z or coefficients: q_1,q_2,...): [ Help ]

Wave vector code q_x q_y q_z
1 0.00000 0.09091 0.00000
2 0.00000 0.18182 0.00000
3 0.00000 0.27273 0.00000
4 0.00000 0.36364 0.00000
5 0.00000 0.45455 0.00000

Definition of the displacive (translational) Fourier series: [ Help ]

Modulation code Atom site label Displacement axis Wave vector code
S1x1 S1 x 1
S1y1 S1 y 1
S1z1 S1 z 1
S1x2 S1 x 2
S1y2 S1 y 2
S1z2 S1 z 2
S1x3 S1 x 3
S1y3 S1 y 3
S1z3 S1 z 3
S1x4 S1 x 4
S1y4 S1 y 4
S1z4 S1 z 4
S1x5 S1 x 5
S1y5 S1 y 5
S1z5 S1 z 5
Pb1x1 Pb1 x 1
Pb1y1 Pb1 y 1
Pb1z1 Pb1 z 1
Pb1x2 Pb1 x 2
Pb1y2 Pb1 y 2
Pb1z2 Pb1 z 2
Pb1x3 Pb1 x 3
Pb1y3 Pb1 y 3
Pb1z3 Pb1 z 3
Pb1x4 Pb1 x 4
Pb1y4 Pb1 y 4
Pb1z4 Pb1 z 4
Pb1x5 Pb1 x 5
Pb1y5 Pb1 y 5
Pb1z5 Pb1 z 5

Displacive (translational) Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
S1x1 0 -0.0525(4)
S1y1 0 0
S1z1 0 0
S1x2 0 0
S1y2 0 0.080(4)
S1z2 0 0
S1x3 0 0.0132(4)
S1y3 0 0
S1z3 0 0
S1x4 0 0
S1y4 0 0.102(3)
S1z4 0 0
S1x5 0 -0.0007(4)
S1y5 0 0
S1z5 0 0
Pb1x1 0 -0.04462(7)
Pb1y1 0 0
Pb1z1 0 0
Pb1x2 0 0
Pb1y2 0 -0.1273(5)
Pb1z2 0 0
Pb1x3 0 0.00285(8)
Pb1y3 0 0
Pb1z3 0 0
Pb1x4 0 0
Pb1y4 0 0.0711(5)
Pb1z4 0 0
Pb1x5 0 -0.00075(5)
Pb1y5 0 0
Pb1z5 0 0

Displacive sawtooth coefficients: [ Help ]

Atom site label Ax Ay Az Center (x0) Width
S1 -0.75 0 0 0 0.5
Pb1 -0.625 0 0 0 0.5

Definition of the ADP Fourier series: [ Help ]

Modulation code Atom site label Tensor element Wave vector code
Pb1U111 Pb1 U11 1
Pb1U221 Pb1 U22 1
Pb1U331 Pb1 U33 1
Pb1U121 Pb1 U12 1
Pb1U131 Pb1 U13 1
Pb1U231 Pb1 U23 1
Pb1U112 Pb1 U11 2
Pb1U222 Pb1 U22 2
Pb1U332 Pb1 U33 2
Pb1U122 Pb1 U12 2
Pb1U132 Pb1 U13 2
Pb1U232 Pb1 U23 2
Pb1U113 Pb1 U11 3
Pb1U223 Pb1 U22 3
Pb1U333 Pb1 U33 3
Pb1U123 Pb1 U12 3
Pb1U133 Pb1 U13 3
Pb1U233 Pb1 U23 3
Pb1U114 Pb1 U11 4
Pb1U224 Pb1 U22 4
Pb1U334 Pb1 U33 4
Pb1U124 Pb1 U12 4
Pb1U134 Pb1 U13 4
Pb1U234 Pb1 U23 4

ADP Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
Pb1U111 0 0
Pb1U221 0 0
Pb1U331 0 0
Pb1U121 0.0006(3) 0
Pb1U131 0 0
Pb1U231 0 0
Pb1U112 -0.0070(6) 0
Pb1U222 -0.0177(7) 0
Pb1U332 -0.0043(6) 0
Pb1U122 0 0
Pb1U132 0 0
Pb1U232 0 0
Pb1U113 0 0
Pb1U223 0 0
Pb1U333 0 0
Pb1U123 -0.0004(3) 0
Pb1U133 0 0
Pb1U233 0 0
Pb1U114 0.0029(5) 0
Pb1U224 0.0214(7) 0
Pb1U334 0.0031(6) 0
Pb1U124 0 0
Pb1U134 0 0
Pb1U234 0 0

modular_2n_3

Chemical data


Structural Formula Sum: Pb1 S1 [ Help ]

Formula weight: 239.2 Da [ Help ]

Absolute configuration: . [ Help ]

Crystallographic data and experimental details


Crystal system: orthorhombic [ Help ]

Superspace group name: Bbmm(0β0)s00 [ Help ]

Symmetry operations of the superspace group: [ Help ]

Operation code Operation in algebraic form
1 x1,x2,x3,x4
2 -x1,-x2,x3,-x4
3 -x1,x2+1/2,-x3,x4+1/2
4 x1,-x2+1/2,-x3,-x4+1/2
5 -x1,-x2,-x3,-x4
6 x1,x2,-x3,x4
7 x1,-x2+1/2,x3,-x4+1/2
8 -x1,x2+1/2,x3,x4+1/2
9 x1+1/2,x2,x3+1/2,x4
10 -x1+1/2,-x2,x3+1/2,-x4
11 -x1+1/2,x2+1/2,-x3+1/2,x4+1/2
12 x1+1/2,-x2+1/2,-x3+1/2,-x4+1/2
13 -x1+1/2,-x2,-x3+1/2,-x4
14 x1+1/2,x2,-x3+1/2,x4
15 x1+1/2,-x2+1/2,x3+1/2,-x4+1/2
16 -x1+1/2,x2+1/2,x3+1/2,x4+1/2

a: 13.535 Å [ Help ]

b: 1.8757 Å [ Help ]

c: 4.104 Å [ Help ]

α: 90 ° [ Help ]

β: 90 ° [ Help ]

γ: 90 ° [ Help ]

Volume: 104.1907 Å3 [ Help ]

Modulation dimension: 1 [ Help ]

Measured independent wave vectors: [ Help ]

Wave vector id q_x q_y q_z
1 0.00000 0.09091 0.00000

Number of subsystems: 3 [ Help ]

Subsystem code: 1 [ Help ]

Subsystem description: 1st subsystem [ Help ]

W matrix:

1.0 0.0 0.0 0.0
0.0 1.0 0.0 0.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Subsystem code: 2 [ Help ]

Subsystem description: 2nd subsystem [ Help ]

W matrix:

3.0 -1.0 0.0 9.0
1.0 0.0 0.0 3.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Subsystem code: 3 [ Help ]

Subsystem description: 3rd subsystem [ Help ]

W matrix:

3.0 1.0 0.0 -9.0
1.0 0.0 0.0 -3.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 -1.0

Z: 16 [ Help ]

μ: 651.605 mm-1 [ Help ]

Absorption correction type: none [ Help ]

Minimum transmission factor: 1.000 [ Help ]

Maximum transmission factor: 1.000 [ Help ]

Refinement details


Total nb. of reflections: 1004 [ Help ]

Nb. of observed reflections: 619 [ Help ]

Intense reflections threshold: I>3σ(I) [ Help ]

Refinement based on: F [ Help ]

R(obs): 0.0497 [ Help ]

wR(obs): 0.0515 [ Help ]

R(all): 0.0751 [ Help ]

wR(all): 0.0534 [ Help ]

S(all): 1.71 [ Help ]

S(obs): 2.12 [ Help ]

Nb. of reflections: 1004 [ Help ]

Nb. of parameters: 26 [ Help ]

Weighting scheme: sigma [ Help ]

Weighting scheme remarks: w=1/(σ2(F)+0.0001F2) [ Help ]

Δ/σ(max): 0.0212 [ Help ]

Δ/σ(mean): 0.0036 [ Help ]

Extinction method: B-C type 1 Gaussian isotropic (Becker & Coppens, 1974) [ Help ]

Extinction coefficient: 240(22) [ Help ]

Structural Information


Average Structure: [ Help ]

Atom site label Atom symbol Subsystem x y z ADP type Uiso/equiv Symmetry multiplicity Occupancy Coords from (d)iffraction or (c)alculated Coords restraints or constraints Disordered cluster Disordered group
S0 S 1 0.6835(7) 0.25 0 Uani 0.036(3) 4 0.0909 d . . .
Pb0 Pb 1 0.32670(14) 0.25 0 Uani 0.0580(7) 4 0.0909 d . . .
Pb1 Pb 2 0 0 0 Uani 0.0347(2) 4 0.3333 d . . .
S1 S 2 0 0.5 0 Uani 0.0417(13) 4 0.4167 d . . .

ADP components: [ Help ]

Atom site label Atom site symbol U11 U22 U33 U12 U13 U23
S0 S 0.033(5) 0.034(5) 0.041(5) 0 0 0
Pb0 Pb 0.0471(10) 0.0822(15) 0.0447(10) 0 0 0
Pb1 Pb 0.0345(4) 0.0343(4) 0.0353(4) 0.0029(3) 0 0
S1 S 0.036(2) 0.044(3) 0.045(2) 0.0065(19) 0 0

Fourier Wave Vectors (explicit: q_x,q_y,q_z or coefficients: q_1,q_2,...): [ Help ]

Wave vector code q_x q_y q_z
1 0.00000 0.09091 0.00000
2 0.00000 0.18182 0.00000

Occupation crenel coefficients: [ Help ]

Atom site label Center (x0) Width
S0 0.25 0.0909
Pb0 0.25 0.0909
Pb1 0 0.3333
S1 0 0.4167

Definition of the displacive (translational) Fourier series: [ Help ]

Modulation code Atom site label Displacement axis Wave vector code
Pb1x1 Pb1 x 1
Pb1y1 Pb1 y 1
Pb1z1 Pb1 z 1
Pb1x2 Pb1 x 2
Pb1y2 Pb1 y 2
Pb1z2 Pb1 z 2
S1x1 S1 x 1
S1y1 S1 y 1
S1z1 S1 z 1
S1x2 S1 x 2
S1y2 S1 y 2
S1z2 S1 z 2

Displacive (translational) Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
Pb1x1 0 0.095(2)
Pb1y1 0 -0.1156(15)
Pb1z1 0 0
Pb1x2 0 -0.0686(15)
Pb1y2 0 0.0799(11)
Pb1z2 0 0
S1x1 0 0.047(5)
S1y1 0 -0.152(4)
S1z1 0 0
S1x2 0 -0.010(4)
S1y2 0 0.118(3)
S1z2 0 0

modular_2n_4

Chemical data


Structural Formula Sum: Pb S [ Help ]

Formula weight: 239.2 Da [ Help ]

Absolute configuration: . [ Help ]

Crystallographic data and experimental details


Crystal system: orthorhombic [ Help ]

Superspace group name: Bmmm(0β0)s00 [ Help ]

Symmetry operations of the superspace group: [ Help ]

Operation code Operation in algebraic form
1 x1,x2,x3,x4
2 -x1,-x2,x3,-x4
3 -x1,x2,-x3,x4+1/2
4 x1,-x2,-x3,-x4+1/2
5 -x1,-x2,-x3,-x4
6 x1,x2,-x3,x4
7 x1,-x2,x3,-x4+1/2
8 -x1,x2,x3,x4+1/2
9 x1+1/2,x2,x3+1/2,x4
10 -x1+1/2,-x2,x3+1/2,-x4
11 -x1+1/2,x2,-x3+1/2,x4+1/2
12 x1+1/2,-x2,-x3+1/2,-x4+1/2
13 -x1+1/2,-x2,-x3+1/2,-x4
14 x1+1/2,x2,-x3+1/2,x4
15 x1+1/2,-x2,x3+1/2,-x4+1/2
16 -x1+1/2,x2,x3+1/2,x4+1/2

a: 13.535 Å [ Help ]

b: 1.7042 Å [ Help ]

c: 4.104 Å [ Help ]

α: 90 ° [ Help ]

β: 90 ° [ Help ]

γ: 90 ° [ Help ]

Volume: 94.66429 Å3 [ Help ]

Modulation dimension: 1 [ Help ]

Measured independent wave vectors: [ Help ]

Wave vector id q_x q_y q_z
1 0.00000 0.08333 0.00000

Number of subsystems: 3 [ Help ]

Subsystem code: 1 [ Help ]

Subsystem description: 1st subsystem [ Help ]

W matrix:

1.0 0.0 0.0 0.0
0.0 1.0 0.0 0.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Subsystem code: 2 [ Help ]

Subsystem description: 2nd subsystem [ Help ]

W matrix:

3.0 -1.0 0.0 10.0
1.0 0.0 0.0 3.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 1.0

Subsystem code: 3 [ Help ]

Subsystem description: 3rd subsystem [ Help ]

W matrix:

3.0 1.0 0.0 -10.0
1.0 0.0 0.0 -3.0
0.0 0.0 1.0 0.0
0.0 0.0 0.0 -1.0

Z: 16 [ Help ]

μ: 717.179 mm-1 [ Help ]

Absorption correction type: none [ Help ]

Minimum transmission factor: 1.000 [ Help ]

Maximum transmission factor: 1.000 [ Help ]

Refinement details


Total nb. of reflections: 1004 [ Help ]

Nb. of observed reflections: 617 [ Help ]

Intense reflections threshold: I>3σ(I) [ Help ]

Refinement based on: F [ Help ]

S(all): 1.71 [ Help ]

S(obs): 2.12 [ Help ]

Nb. of reflections: 1004 [ Help ]

Nb. of parameters: 26 [ Help ]

Weighting scheme: sigma [ Help ]

Weighting scheme remarks: w=1/(σ2(F)+0.0001F2) [ Help ]

Δ/σ(max): 0.0000 [ Help ]

Δ/σ(mean): 0.0000 [ Help ]

Extinction method: B-C type 1 Gaussian isotropic (Becker & Coppens, 1974) [ Help ]

Extinction coefficient: 239(5) [ Help ]

Structural Information


Average Structure: [ Help ]

Atom site label Atom symbol Subsystem x y z ADP type Uiso/equiv Symmetry multiplicity Occupancy Coords from (d)iffraction or (c)alculated Coords restraints or constraints Disordered cluster Disordered group
Pb0 Pb 1 0.32669(14) 0.5 0 Uani 0.0575(7) 4 0.0833 d . . .
S0 S 1 0.6835(7) 0.5 0 Uani 0.035(3) 4 0.0833 d . . .
Pb Pb 2 0 0 0 Uani 0.0345(2) 4 0.3333 d . . .
S S 2 0 0.5 0 Uani 0.0415(13) 4 0.4167 d . . .

ADP components: [ Help ]

Atom site label Atom site symbol U11 U22 U33 U12 U13 U23
Pb0 Pb 0.0472(10) 0.0805(15) 0.0448(11) 0 0 0
S0 S 0.032(5) 0.033(5) 0.041(5) 0 0 0
Pb Pb 0.0344(4) 0.0337(4) 0.0354(4) 0.0029(3) 0 0
S S 0.036(2) 0.043(3) 0.045(2) 0.0066(19) 0 0

Fourier Wave Vectors (explicit: q_x,q_y,q_z or coefficients: q_1,q_2,...): [ Help ]

Wave vector code q_x q_y q_z
1 0.00000 0.08333 0.00000
2 0.00000 0.16667 0.00000

Occupation crenel coefficients: [ Help ]

Atom site label Center (x0) Width
Pb0 0.25 0.0833
S0 0.25 0.0833
Pb 0 0.3333
S 0 0.4167

Definition of the displacive (translational) Fourier series: [ Help ]

Modulation code Atom site label Displacement axis Wave vector code
Pbx1 Pb x 1
Pby1 Pb y 1
Pbz1 Pb z 1
Pbx2 Pb x 2
Pby2 Pb y 2
Pbz2 Pb z 2
Sx1 S x 1
Sy1 S y 1
Sz1 S z 1
Sx2 S x 2
Sy2 S y 2
Sz2 S z 2

Displacive (translational) Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
Pbx1 0 0.096(2)
Pby1 0 -0.1156(15)
Pbz1 0 0
Pbx2 0 -0.0686(15)
Pby2 0 0.0799(11)
Pbz2 0 0
Sx1 0 0.047(5)
Sy1 0 -0.152(4)
Sz1 0 0
Sx2 0 -0.010(4)
Sy2 0 0.118(3)
Sz2 0 0