Incommensurate structure of InAl1-xTixO3+x/2 [x=0.701(1)]: comparison between a modulated and a composite model

Authors:

Bereciartua, Pablo J.; Zuniga, F. Javier; Breczewski, Tomasz

Journal:

Acta Crystallographica, Section B 64 405-416 (2008)

DOI:

https://doi.org/10.1107/S0108768108012317

B-IncStrDB ID: XDtXvQzKOoy Entry date: 2022-01-24 Last revision: 2022-01-24

mod

Chemical data


Formula moiety: Al0.256 In1.044 O3.35 Ti0.700 [ Help ]

Structural Formula Sum: Al0.256 In1.044 O3.35 Ti0.700 [ Help ]

Formula weight: 213.89 Da [ Help ]

Crystallographic data and experimental details


Crystal system: monoclinic [ Help ]

Superspace group name: C2/m(0β0)s0 [ Help ]

Symmetry operations of the superspace group: [ Help ]

Operation code Operation in algebraic form
1 x1,x2,x3,x4
2 -x1,x2,-x3,1/2+x4
3 -x1,-x2,-x3,-x4
4 x1,-x2,x3,1/2-x4
5 1/2+x1,1/2+x2,x3,x4
6 1/2-x1,1/2+x2,-x3,1/2+x4
7 1/2-x1,1/2-x2,-x3,-x4
8 1/2+x1,1/2-x2,x3,1/2-x4

a: 5.857(4) Å [ Help ]

b: 3.361(3) Å [ Help ]

c: 6.355(5) Å [ Help ]

α: 90 ° [ Help ]

β: 107.96(5) ° [ Help ]

γ: 90 ° [ Help ]

Volume: 119.00(17) Å3 [ Help ]

Z: 2 [ Help ]

Cell measurement temperature: 293 K [ Help ]

Modulation dimension: 1 [ Help ]

Measured independent wave vectors: [ Help ]

Wave vector id q_x q_y q_z
1 0.00000 0.3503(5) 0.00000

μ: 12.349 mm-1 [ Help ]

Absorption correction type: numerical [ Help ]

Absorption correction remarks: gaussian [ Help ]

Minimum transmission factor: 0.31 [ Help ]

Maximum transmission factor: 0.83 [ Help ]

Refinement details


Total nb. of reflections: 1733 [ Help ]

Nb. of observed reflections: 994 [ Help ]

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

Refinement based on: F [ Help ]

R(all): 0.0539 [ Help ]

R(obs): 0.0315 [ Help ]

wR(obs): 0.0462 [ Help ]

wR(all): 0.0587 [ Help ]

S(all): 1.49 [ Help ]

Nb. of reflections: 1733 [ Help ]

Nb. of parameters: 57 [ Help ]

Number of restraints: 6 [ Help ]

Number of constraints: 1 [ Help ]

Weighting scheme: sigma [ Help ]

Weighting scheme remarks: w=1/(σ2(F)+0.0004F2) [ Help ]

Δ/σ(max): 0.0008 [ Help ]

Δ/σ(mean): 0.0002 [ Help ]

Δρ(max): 2.47 e_Å-3 [ Help ]

Δρ(min): -2.37 e_Å-3 [ Help ]

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

Extinction coefficient: 0.00103(6) [ Help ]

Structural Information


Average Structure: [ Help ]

Atom symbol Atom site label x y z Uiso/equiv ADP type Coords from (d)iffraction or (c)alculated Coords restraints or constraints Occupancy Disordered cluster Disordered group
In In1 0 0 0 0.00571(11) Uani d . 1 . .
Al Al 0.5 0 0.5 0.0100(3) Uani d . 0.256(8) . .
Ti Ti 0.5 0 0.5 0.0100(3) Uani d . 0.700(6) . .
In In2 0.5 0 0.5 0.0100(3) Uani d . 0.044(10) . .
O O1 0.3888(4) 0 0.1709(4) 0.0053(6) Uani d . 1 . .
O O2 0.1597(4) 0 0.4983(4) 0.0181(7) Uani d . 0.6751 . .

ADP components: [ Help ]

Atom site label U11 U22 U33 U12 U13 U23 Atom site symbol
In1 0.00514(15) 0.00373(16) 0.0086(2) 0 0.00267(11) 0 In
Al 0.0110(4) 0.0137(4) 0.0045(4) 0 0.0012(3) 0 Al
Ti 0.0110(4) 0.0137(4) 0.0045(4) 0 0.0012(3) 0 Ti
In2 0.0110(4) 0.0137(4) 0.0045(4) 0 0.0012(3) 0 In
O1 0.0061(8) 0.0055(10) 0.0039(9) 0 0.0011(7) 0 O
O2 0.0232(13) 0.0181(10) 0.0092(11) 0 -0.0007(9) 0 O

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 0.3503 0.00000
2 0.00000 0.7006 0.00000
3 0.00000 1.0509 0.00000

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

Modulation code Atom site label Displacement axis Wave vector code
In1x1 In1 x 1
In1y1 In1 y 1
In1z1 In1 z 1
In1x2 In1 x 2
In1y2 In1 y 2
In1z2 In1 z 2
In1x3 In1 x 3
In1y3 In1 y 3
In1z3 In1 z 3
Alx1 Al x 1
Aly1 Al y 1
Alz1 Al z 1
Alx2 Al x 2
Aly2 Al y 2
Alz2 Al z 2
Alx3 Al x 3
Aly3 Al y 3
Alz3 Al z 3
Tix1 Ti x 1
Tiy1 Ti y 1
Tiz1 Ti z 1
Tix2 Ti x 2
Tiy2 Ti y 2
Tiz2 Ti z 2
Tix3 Ti x 3
Tiy3 Ti y 3
Tiz3 Ti z 3
In2x1 In2 x 1
In2y1 In2 y 1
In2z1 In2 z 1
In2x2 In2 x 2
In2y2 In2 y 2
In2z2 In2 z 2
In2x3 In2 x 3
In2y3 In2 y 3
In2z3 In2 z 3
O2x1 O1 x 1
O2y1 O1 y 1
O2z1 O1 z 1
O2x2 O2 x 1
O2y2 O2 y 1
O2z2 O2 z 1
O2x3 O2 x 2
O2y3 O2 y 2
O2z3 O2 z 2

Displacive (translational) Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
In1x1 0 0.02003(6)
In1y1 0 0
In1z1 0 0.00511(5)
In1x2 0 0
In1y2 0 -0.00228(7)
In1z2 0 0
In1x3 0 -0.00016(5)
In1y3 0 0
In1z3 0 -0.00004(5)
Alx1 0 0.0545(2)
Aly1 0 0
Alz1 0 0.00745(13)
Alx2 0 0
Aly2 0 -0.0261(2)
Alz2 0 0
Alx3 0 -0.00242(18)
Aly3 0 0
Alz3 0 0.00158(16)
Tix1 0 0.0545(2)
Tiy1 0 0
Tiz1 0 0.00745(13)
Tix2 0 0
Tiy2 0 -0.0261(2)
Tiz2 0 0
Tix3 0 -0.00242(18)
Tiy3 0 0
Tiz3 0 0.00158(16)
In2x1 0 0.0545(2)
In2y1 0 0
In2z1 0 0.00745(13)
In2x2 0 0
In2y2 0 -0.0261(2)
In2z2 0 0
In2x3 0 -0.00242(18)
In2y3 0 0
In2z3 0 0.00158(16)
O2x1 0 0.0285(4)
O2y1 -0.0003(5) 0
O2z1 0 0.0011(3)
O2x2 0 0.0352(5)
O2y2 -0.0003(7) 0
O2z2 0 0.0008(4)
O2x3 -0.0001(5) 0
O2y3 0 0.0006(6)
O2z3 -0.0036(4) 0

Definition of the occupation Fourier series: [ Help ]

Modulation code Atom site label Wave vector code
Alo1 Al 1
Alo2 Al 2
Tio1 Ti 1
Tio2 Ti 2
In2o1 In2 1
In2o2 In2 2

Occupation Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
Alo1 0 0
Alo2 0.256(8) 0
Tio1 0 0
Tio2 -0.242(9) 0
In2o1 0 0
In2o2 -0.014(3) 0

Definition of the ADP Fourier series: [ Help ]

Modulation code Atom site label Tensor element Wave vector code
In1U111 In1 U11 1
In1U221 In1 U22 1
In1U331 In1 U33 1
In1U121 In1 U12 1
In1U131 In1 U13 1
In1U231 In1 U23 1
In1U112 In1 U11 2
In1U222 In1 U22 2
In1U332 In1 U33 2
In1U122 In1 U12 2
In1U132 In1 U13 2
In1U232 In1 U23 2
AlU111 Al U11 1
AlU221 Al U22 1
AlU331 Al U33 1
AlU121 Al U12 1
AlU131 Al U13 1
AlU231 Al U23 1
AlU112 Al U11 2
AlU222 Al U22 2
AlU332 Al U33 2
AlU122 Al U12 2
AlU132 Al U13 2
AlU232 Al U23 2
TiU111 Ti U11 1
TiU221 Ti U22 1
TiU331 Ti U33 1
TiU121 Ti U12 1
TiU131 Ti U13 1
TiU231 Ti U23 1
TiU112 Ti U11 2
TiU222 Ti U22 2
TiU332 Ti U33 2
TiU122 Ti U12 2
TiU132 Ti U13 2
TiU232 Ti U23 2
In2U111 In2 U11 1
In2U221 In2 U22 1
In2U331 In2 U33 1
In2U121 In2 U12 1
In2U131 In2 U13 1
In2U231 In2 U23 1
In2U112 In2 U11 2
In2U222 In2 U22 2
In2U332 In2 U33 2
In2U122 In2 U12 2
In2U132 In2 U13 2
In2U232 In2 U23 2

ADP Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
In1U111 0 0
In1U221 0 0
In1U331 0 0
In1U121 0.00003(7) 0
In1U131 0 0
In1U231 -0.00163(8) 0
In1U112 0.00082(11) 0
In1U222 -0.00006(10) 0
In1U332 0.00084(14) 0
In1U122 0 0
In1U132 0.00040(10) 0
In1U232 0 0
AlU111 0 0
AlU221 0 0
AlU331 0 0
AlU121 -0.0028(3) 0
AlU131 0 0
AlU231 -0.0006(3) 0
AlU112 0.0033(5) 0
AlU222 -0.0090(4) 0
AlU332 0.0004(4) 0
AlU122 0 0
AlU132 0.0017(3) 0
AlU232 0 0
TiU111 0 0
TiU221 0 0
TiU331 0 0
TiU121 -0.0028(3) 0
TiU131 0 0
TiU231 -0.0006(3) 0
TiU112 0.0033(5) 0
TiU222 -0.0090(4) 0
TiU332 0.0004(4) 0
TiU122 0 0
TiU132 0.0017(3) 0
TiU232 0 0
In2U111 0 0
In2U221 0 0
In2U331 0 0
In2U121 -0.0028(3) 0
In2U131 0 0
In2U231 -0.0006(3) 0
In2U112 0.0033(5) 0
In2U222 -0.0090(4) 0
In2U332 0.0004(4) 0
In2U122 0 0
In2U132 0.0017(3) 0
In2U232 0 0

Displacive sawtooth coefficients: [ Help ]

Atom site label Ax Ay Az Center (x0) Width
O2 0 -0.1545 0 0.75 0.6751

comp

Chemical data


Formula moiety: Al0.253 In1.046 O3.35 Ti0.701 [ Help ]

Structural Formula Sum: Al0.253 In1.046 O3.35 Ti0.701 [ Help ]

Formula weight: 214.08 Da [ Help ]

Crystallographic data and experimental details


Crystal system: monoclinic [ Help ]

Superspace group name: C2/m(0β0)s0 [ Help ]

Symmetry operations of the superspace group: [ Help ]

Operation code Operation in algebraic form
1 x1,x2,x3,x4
2 -x1,x2,-x3,1/2+x4
3 -x1,-x2,-x3,-x4
4 x1,-x2,x3,1/2-x4
5 1/2+x1,1/2+x2,x3,x4
6 1/2-x1,1/2+x2,-x3,1/2+x4
7 1/2-x1,1/2-x2,-x3,-x4
8 1/2+x1,1/2-x2,x3,1/2-x4

a: 5.857(4) Å [ Help ]

b: 3.361(3) Å [ Help ]

c: 6.355(5) Å [ Help ]

α: 90 ° [ Help ]

β: 107.96(5) ° [ Help ]

γ: 90 ° [ Help ]

Volume: 119.00(17) Å3 [ Help ]

Z: 2 [ Help ]

Cell measurement temperature: 293 K [ Help ]

Modulation dimension: 1 [ Help ]

Number of subsystems: 2 [ Help ]

Subsystem code: 1 [ Help ]

Subsystem description: 1-st 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: 2-nd 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 1.0 0.0 0.0

Measured independent wave vectors: [ Help ]

Wave vector id q_x q_y q_z
1 0.00000 0.3503(5) 0.00000

μ: 12.368 mm-1 [ Help ]

Absorption correction type: numerical [ Help ]

Absorption correction remarks: gaussian [ Help ]

Minimum transmission factor: 0.31 [ Help ]

Maximum transmission factor: 0.83 [ Help ]

Refinement details


Total nb. of reflections: 1733 [ Help ]

Nb. of observed reflections: 994 [ Help ]

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

Refinement based on: F [ Help ]

R(all): 0.0564 [ Help ]

R(obs): 0.0322 [ Help ]

wR(obs): 0.0470 [ Help ]

wR(all): 0.0603 [ Help ]

S(all): 1.53 [ Help ]

Nb. of reflections: 1733 [ Help ]

Nb. of parameters: 57 [ Help ]

Number of restraints: 6 [ Help ]

Number of constraints: 1 [ Help ]

Weighting scheme: sigma [ Help ]

Weighting scheme remarks: w=1/(σ2(F)+0.0004F2) [ Help ]

Δ/σ(max): 0.0004 [ Help ]

Δ/σ(mean): 0.0001 [ Help ]

Δρ(max): 2.47 e_Å-3 [ Help ]

Δρ(min): -2.36 e_Å-3 [ Help ]

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

Extinction coefficient: 0.00100(6) [ Help ]

Structural Information


Average Structure: [ Help ]

Atom symbol Atom site label Subsystem x y z Uiso/equiv ADP type Coords from (d)iffraction or (c)alculated Coords restraints or constraints Occupancy Disordered cluster Disordered group
In In1 1 0 0 0 0.00571(11) Uani d . 1 . .
Al Al 1 0.5 0 0.5 0.0100(3) Uani d . 0.255(8) . .
Ti Ti 1 0.5 0 0.5 0.0100(3) Uani d . 0.701(6) . .
In In2 1 0.5 0 0.5 0.0100(3) Uani d . 0.044(10) . .
O O1 1 0.3888(4) 0 0.1709(4) 0.0052(6) Uani d . 1 . .
O O2 2 0.6597(4) 0.25 0.4983(4) 0.0181(8) Uani d . 0.5 . .

ADP components: [ Help ]

Atom site label U11 U22 U33 U12 U13 U23 Atom site symbol
In1 0.00514(15) 0.00373(16) 0.0086(2) 0 0.00267(11) 0 In
Al 0.0110(4) 0.0137(4) 0.0045(4) 0 0.0012(3) 0 Al
Ti 0.0110(4) 0.0137(4) 0.0045(4) 0 0.0012(3) 0 Ti
In2 0.0110(4) 0.0137(4) 0.0045(4) 0 0.0012(3) 0 In
O1 0.0061(8) 0.0055(10) 0.0039(9) 0 0.0011(7) 0 O
O2 0.0232(13) 0.0180(10) 0.0092(11) 0 -0.0007(9) 0 O

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 0.3503 0.00000
2 0.00000 0.7006 0.00000
3 0.00000 1.0509 0.00000

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

Modulation code Atom site label Displacement axis Wave vector code
In1x1 In1 x 1
In1y1 In1 y 1
In1z1 In1 z 1
In1x2 In1 x 2
In1y2 In1 y 2
In1z2 In1 z 2
In1x3 In1 x 3
In1y3 In1 y 3
In1z3 In1 z 3
Alx1 Al x 1
Aly1 Al y 1
Alz1 Al z 1
Alx2 Al x 2
Aly2 Al y 2
Alz2 Al z 2
Alx3 Al x 3
Aly3 Al y 3
Alz3 Al z 3
Tix1 Ti x 1
Tiy1 Ti y 1
Tiz1 Ti z 1
Tix2 Ti x 2
Tiy2 Ti y 2
Tiz2 Ti z 2
Tix3 Ti x 3
Tiy3 Ti y 3
Tiz3 Ti z 3
In2x1 In2 x 1
In2y1 In2 y 1
In2z1 In2 z 1
In2x2 In2 x 2
In2y2 In2 y 2
In2z2 In2 z 2
In2x3 In2 x 3
In2y3 In2 y 3
In2z3 In2 z 3
O1x1 O1 x 1
O1y1 O1 y 1
O1z1 O1 z 1
O2x1 O2 x 1
O2y1 O2 y 1
O2z1 O2 z 1
O2x2 O2 x 2
O2y2 O2 y 2
O2z2 O2 z 2

Displacive (translational) Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
In1x1 0 0.02003(6)
In1y1 0 0
In1z1 0 0.00511(5)
In1x2 0 0
In1y2 0 -0.00228(7)
In1z2 0 0
In1x3 0 -0.00017(5)
In1y3 0 0
In1z3 0 -0.00004(5)
Alx1 0 0.0545(2)
Aly1 0 0
Alz1 0 0.00745(13)
Alx2 0 0
Aly2 0 -0.0261(2)
Alz2 0 0
Alx3 0 -0.00243(18)
Aly3 0 0
Alz3 0 0.00158(16)
Tix1 0 0.0545(2)
Tiy1 0 0
Tiz1 0 0.00745(13)
Tix2 0 0
Tiy2 0 -0.0261(2)
Tiz2 0 0
Tix3 0 -0.00243(18)
Tiy3 0 0
Tiz3 0 0.00158(16)
In2x1 0 0.0545(2)
In2y1 0 0
In2z1 0 0.00745(13)
In2x2 0 0
In2y2 0 -0.0261(2)
In2z2 0 0
In2x3 0 -0.00243(18)
In2y3 0 0
In2z3 0 0.00158(16)
O1x1 0 0.0285(4)
O1y1 -0.0003(5) 0
O1z1 0 0.0011(3)
O2x1 0.0353(5) 0
O2y1 0 0.0010(9)
O2z1 0.0010(4) 0
O2x2 0.0014(5) 0
O2y2 0 0.0007(8)
O2z2 -0.0035(4) 0

Definition of the occupation Fourier series: [ Help ]

Modulation code Atom site label Wave vector code
Alo1 Al 1
Alo2 Al 2
Tio1 Ti 1
Tio2 Ti 2
In2o1 In2 1
In2o2 In2 2

Occupation Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
Alo1 0 0
Alo2 0.255(8) 0
Tio1 0 0
Tio2 -0.241(9) 0
In2o1 0 0
In2o2 -0.014(3) 0

Definition of the ADP Fourier series: [ Help ]

Modulation code Atom site label Tensor element Wave vector code
In1U111 In1 U11 1
In1U221 In1 U22 1
In1U331 In1 U33 1
In1U121 In1 U12 1
In1U131 In1 U13 1
In1U231 In1 U23 1
In1U112 In1 U11 2
In1U222 In1 U22 2
In1U332 In1 U33 2
In1U122 In1 U12 2
In1U132 In1 U13 2
In1U232 In1 U23 2
AlU111 Al U11 1
AlU221 Al U22 1
AlU331 Al U33 1
AlU121 Al U12 1
AlU131 Al U13 1
AlU231 Al U23 1
AlU112 Al U11 2
AlU222 Al U22 2
AlU332 Al U33 2
AlU122 Al U12 2
AlU132 Al U13 2
AlU232 Al U23 2
TiU111 Ti U11 1
TiU221 Ti U22 1
TiU331 Ti U33 1
TiU121 Ti U12 1
TiU131 Ti U13 1
TiU231 Ti U23 1
TiU112 Ti U11 2
TiU222 Ti U22 2
TiU332 Ti U33 2
TiU122 Ti U12 2
TiU132 Ti U13 2
TiU232 Ti U23 2
In2U111 In2 U11 1
In2U221 In2 U22 1
In2U331 In2 U33 1
In2U121 In2 U12 1
In2U131 In2 U13 1
In2U231 In2 U23 1
In2U112 In2 U11 2
In2U222 In2 U22 2
In2U332 In2 U33 2
In2U122 In2 U12 2
In2U132 In2 U13 2
In2U232 In2 U23 2

ADP Fourier coefficients: [ Help ]

Modulation code Cosine coefficient Sine coefficient
In1U111 0 0
In1U221 0 0
In1U331 0 0
In1U121 0.00003(7) 0
In1U131 0 0
In1U231 -0.00164(8) 0
In1U112 0.00082(11) 0
In1U222 -0.00006(10) 0
In1U332 0.00083(14) 0
In1U122 0 0
In1U132 0.00039(10) 0
In1U232 0 0
AlU111 0 0
AlU221 0 0
AlU331 0 0
AlU121 -0.0028(3) 0
AlU131 0 0
AlU231 -0.0006(3) 0
AlU112 0.0033(5) 0
AlU222 -0.0090(4) 0
AlU332 0.0004(4) 0
AlU122 0 0
AlU132 0.0017(3) 0
AlU232 0 0
TiU111 0 0
TiU221 0 0
TiU331 0 0
TiU121 -0.0028(3) 0
TiU131 0 0
TiU231 -0.0006(3) 0
TiU112 0.0033(5) 0
TiU222 -0.0090(4) 0
TiU332 0.0004(4) 0
TiU122 0 0
TiU132 0.0017(3) 0
TiU232 0 0
In2U111 0 0
In2U221 0 0
In2U331 0 0
In2U121 -0.0028(3) 0
In2U131 0 0
In2U231 -0.0006(3) 0
In2U112 0.0033(5) 0
In2U222 -0.0090(4) 0
In2U332 0.0004(4) 0
In2U122 0 0
In2U132 0.0017(3) 0
In2U232 0 0

Displacive sawtooth coefficients: [ Help ]

Atom site label Ax Ay Az Center (x0) Width
O2 0 -0.1265 0 0.5 0.5