C-type Yb2Te3O9

Höss, P.; Chou, S.-C.; Russ, P.L.; Locke, R.J.C.; Schleid, T.

doi:10.1107/S2414314624008885

inorganic compounds

IUCrDATA

ISSN: 2414-3146

Volume 9| Part 9| September 2024| x240888

https://doi.org/10.1107/S2414314624008885

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C-type Yb₂Te₃O₉

Patrick Höss,^a Sheng-Chun Chou,^a Philip L. Russ,^a Ralf J. C. Locke ^a and Thomas Schleid ^a ^*

^aInstitut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring, 55, 70569 Stuttgart, Germany
^*Correspondence e-mail: thomas.schleid@iac.uni-stuttgart.de

Edited by M. Weil, Vienna University of Technology, Austria (Received 26 July 2024; accepted 11 September 2024; online 17 September 2024)

The title compound, diytterbium enneaoxidotritellurate(IV), was obtained in its C-type crystal structure from the binary oxides at 1073 K using a CsCl flux. It crystallizes isotypically with C-type Tm₂Te₃O₉ and Lu₂Te₃O₉, closing this gap of knowledge.

Keywords: crystal structure; oxidotellurates(IV); lanthanoids; ytterbium.

CCDC reference: 2383284

Structure description

The lanthanoid(III) oxidotellurates(IV) of the formula type Ln₂Te₃O₉ exhibit three structure types depending on the size of the involved Ln³⁺ cation. With the monoclinic A1 type for Ln = La and Ce and the highly related A2 type for Ln = Pr and Nd (Chou et al., 2021 ), the likewise monoclinic Dy₂Te₃O₉ in the B type (Meier et al., 2009 ) and the triclinic C type for Ln = Tm (Höss & Schleid, 2008 ) and Lu (Höss et al., 2013 ), all these structure types could be characterized on the basis of single-crystal X-ray diffraction data.

Yb₂Te₃O₉ crystallizes isotypically with Tm₂Te₃O₉ and Lu₂Te₃O₉ in the triclinic space group P $[\overline{1}]$ . All atoms in the crystal structure occupy the general position 2i. The six crystallographically different Yb³⁺ cations are surrounded seven- or eightfold by oxygen [d(Yb—O) = 2.130 (6)–2.737 (6) Å] and the resulting distorted coordination polyhedra undergo condensation via common corners and edges to form [Yb₆O₂₇]^36– layers with a pronounced profile structure parallel to (001). The nine distinct tellurium atoms are each surrounded in the primary coordination sphere by three oxygen atoms with typical distances d(Te—O) = 1.844 (7)–1.955 (6) Å, which together with the free, non-bonding electron pairs of the Te⁴⁺ cations result in a ψ¹-tetrahedral shape of the corresponding oxidotellurate(IV) anions. In addition, secondary interactions typical for lanthanoid(III) oxidotellurates(IV) also occur between several [TeO₃]^2– units [d(Te⋯O) = 2.380 (6)-2.729 (7) Å]. So two of the [TeO₃]^2– anions link the [Yb₆O₂₇]^36– layers in the [001] direction, resulting in a tri-periodic network. This leaves sufficient space between the layers for the free non-bonding electron pairs of the Te⁴⁺ cations (Fig. 1).

Figure 1
The triclinic crystal structure of C-type Yb₂Te₃O₉ in a view along [100]. Displacement ellipsoids are drawn at the 95% probability level.

Synthesis and crystallization

Based on the general formula (Yb₂O₃)(TeO₂)_n, the corresponding oxides Yb₂O₃ and TeO₂ in a molar ratio of 1:3 and an excess of caesium chloride, CsCl, as flux were reacted in evacuated silica glass ampoules at 1073 K for 10 d for this specific preparation with n = 3. In that way, hydrolysis- and air-resistant single crystals of Yb₂Te₃O₉ were obtained in the form of colourless and transparent crystals.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 1. For the structure solution, coordinates were taken from an isotypic compound.

Table 1
Experimental details

Crystal data
Chemical formula	O₉Te₃Yb₂
M_r	872.88
Crystal system, space group	Triclinic, P $[\overline{1}]$
Temperature (K)	293
a, b, c (Å)	6.9208 (4), 13.2576 (8), 14.5513 (9)
α, β, γ (°)	110.068 (3), 90.497 (3), 100.082 (3)
V (Å³)	1231.29 (13)
Z	6
Radiation type	Mo Kα
μ (mm⁻¹)	33.12
Crystal size (mm)	0.05 × 0.04 × 0.02

Data collection
Diffractometer	Nonius Kappa-CCD
Absorption correction	Numerical [X-SHAPE (Stoe, 2020 ) based on HABITUS (Herrendorf, 1995 )]
T_min, T_max	0.107, 0.129
No. of measured, independent and observed [I > 2σ(I)] reflections	43221, 6120, 5334
R_int	0.099
(sin θ/λ)_max (Å⁻¹)	0.667

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.033, 0.065, 1.06
No. of reflections	6120
No. of parameters	375
Δρ_max, Δρ_min (e Å⁻³)	2.05, −2.15
Computer programs: COLLECT (Nonius, 1998 ), DENZO/SCALEPACK (Otwinowski & Minor, 1997 ), SHELXL (Sheldrick, 2015 ), DIAMOND (Brandenburg & Putz, 2005 ) and publCIF (Westrip, 2010 ).

Structural data

CCDC reference: 2383284

Crystal structure: contains datablock I. DOI: https://doi.org/10.1107/S2414314624008885/wm4219sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314624008885/wm4219Isup2.hkl

checkCIF report

Computing details top

Diytterbium enneaoxidotritellurate(IV) top

Crystal data top

O₉Te₃Yb₂	Z = 6
M_r = 872.88	F(000) = 2208
Triclinic, P1	D_x = 7.063 Mg m⁻³
a = 6.9208 (4) Å	Mo Kα radiation, λ = 0.71069 Å
b = 13.2576 (8) Å	Cell parameters from 5334 reflections
c = 14.5513 (9) Å	θ = 0.4–28.3°
α = 110.068 (3)°	µ = 33.12 mm⁻¹
β = 90.497 (3)°	T = 293 K
γ = 100.082 (3)°	Bar, colourless
V = 1231.29 (13) Å³	0.05 × 0.04 × 0.02 mm

Data collection top

Nonius Kappa-CCD diffractometer	5334 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	R_int = 0.099
four–circle, CCD–detector scans	θ_max = 28.3°, θ_min = 1.5°
Absorption correction: numerical [X-SHAPE (Stoe, 2020) based on HABITUS (Herrendorf, 1995)]	h = −9→9
T_min = 0.107, T_max = 0.129	k = −17→17
43221 measured reflections	l = −19→19
6120 independent reflections

Refinement top

Refinement on F²	0 restraints
Least-squares matrix: full	w = 1/[σ²(F_o²) + (0.0222P)² + 9.0186P] where P = (F_o² + 2F_c²)/3
R[F² > 2σ(F²)] = 0.033	(Δ/σ)_max = 0.001
wR(F²) = 0.065	Δρ_max = 2.05 e Å⁻³
S = 1.06	Δρ_min = −2.15 e Å⁻³
6120 reflections	Extinction correction: SHELXL (Sheldrick, 2015), Fc^*=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4
375 parameters	Extinction coefficient: 0.00102 (3)

Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
Yb1	0.24579 (5)	0.45962 (3)	0.53421 (3)	0.00751 (9)
Yb2	0.75209 (5)	0.05988 (3)	0.47217 (3)	0.00807 (9)
Yb3	0.83241 (5)	0.27086 (3)	0.33711 (3)	0.00854 (9)
Yb4	0.17952 (5)	0.22483 (3)	0.66972 (3)	0.00771 (9)
Yb5	0.07557 (6)	0.33879 (3)	0.92671 (3)	0.00988 (9)
Yb6	0.48911 (5)	0.23859 (3)	0.02980 (3)	0.00880 (9)
Te1	0.22726 (8)	0.17280 (4)	0.42919 (4)	0.00798 (12)
Te2	0.35619 (8)	0.84828 (4)	0.29392 (4)	0.00790 (12)
Te3	0.06320 (8)	0.03237 (5)	0.77302 (5)	0.00941 (12)
Te4	0.35869 (8)	0.35524 (4)	0.27413 (4)	0.00725 (12)
Te5	0.26918 (8)	0.64602 (4)	0.42041 (4)	0.00723 (12)
Te6	0.96044 (8)	0.18865 (5)	0.06765 (5)	0.00953 (12)
Te7	0.48888 (8)	0.03448 (4)	0.14179 (4)	0.00901 (12)
Te8	0.86476 (8)	0.47376 (4)	0.19231 (4)	0.00831 (12)
Te9	0.37548 (9)	0.57923 (5)	0.11773 (5)	0.01079 (13)
O1	0.1500 (9)	0.0878 (5)	0.5091 (5)	0.0093 (13)
O2	0.9580 (9)	0.1526 (5)	0.3857 (5)	0.0109 (13)*
O3	0.2053 (9)	0.2959 (4)	0.5478 (5)	0.0092 (13)
O4	0.4553 (9)	0.9614 (5)	0.4129 (5)	0.0102 (13)
O5	0.4979 (9)	0.7456 (5)	0.3160 (5)	0.0123 (14)
O6	0.1423 (8)	0.8142 (5)	0.3675 (5)	0.0094 (13)
O7	0.2210 (9)	0.0602 (5)	0.6778 (5)	0.0114 (13)
O8	0.1877 (9)	0.0034 (5)	0.2954 (5)	0.0139 (14)
O9	0.0609 (9)	0.1830 (5)	0.8150 (5)	0.0134 (14)
O10	0.3427 (9)	0.2150 (5)	0.1816 (5)	0.0129 (13)
O11	0.5833 (9)	0.3595 (5)	0.3504 (5)	0.0112 (13)
O12	0.1857 (8)	0.3312 (5)	0.3706 (5)	0.0094 (13)
O13	0.6398 (9)	0.2220 (5)	0.4785 (5)	0.0109 (13)
O14	0.4378 (9)	0.5542 (5)	0.4382 (5)	0.0114 (13)
O15	0.8990 (8)	0.4020 (5)	0.4921 (5)	0.0079 (12)
O16	0.9367 (9)	0.2788 (5)	0.1950 (5)	0.0155 (14)
O17	0.1832 (9)	0.7473 (5)	0.0014 (5)	0.0111 (13)
O18	0.1860 (9)	0.2794 (5)	0.0409 (5)	0.0128 (14)
O19	0.6493 (10)	0.1106 (5)	0.2568 (5)	0.0146 (14)
O20	0.3866 (10)	0.0876 (5)	0.8976 (5)	0.0161 (14)
O21	0.6237 (9)	0.1077 (5)	0.0636 (5)	0.0127 (13)
O22	0.9011 (10)	0.4933 (5)	0.3234 (5)	0.0164 (14)
O23	0.6099 (9)	0.3913 (5)	0.1583 (5)	0.0111 (13)
O24	0.1981 (9)	0.3877 (5)	0.7905 (5)	0.0111 (13)
O25	0.4447 (10)	0.3299 (6)	0.9266 (6)	0.0213 (16)
O26	0.1925 (10)	0.6675 (6)	0.1681 (5)	0.0196 (15)
O27	0.2116 (14)	0.5093 (6)	0.0019 (6)	0.037 (2)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Yb1	0.00545 (17)	0.00573 (17)	0.0114 (2)	0.00094 (14)	0.00023 (15)	0.00313 (15)
Yb2	0.00707 (18)	0.00507 (17)	0.0115 (2)	0.00071 (14)	0.00108 (15)	0.00243 (15)
Yb3	0.00709 (18)	0.00659 (17)	0.01136 (19)	0.00226 (14)	−0.00040 (15)	0.00197 (15)
Yb4	0.00500 (17)	0.00603 (17)	0.01166 (19)	0.00071 (14)	−0.00043 (15)	0.00274 (15)
Yb5	0.01007 (18)	0.00722 (18)	0.0111 (2)	−0.00072 (14)	−0.00103 (15)	0.00284 (15)
Yb6	0.00642 (18)	0.00662 (17)	0.0129 (2)	0.00124 (14)	−0.00043 (15)	0.00286 (15)
Te1	0.0054 (3)	0.0072 (3)	0.0115 (3)	0.0005 (2)	0.0001 (2)	0.0037 (2)
Te2	0.0058 (3)	0.0068 (3)	0.0109 (3)	0.0012 (2)	0.0008 (2)	0.0027 (2)
Te3	0.0080 (3)	0.0078 (3)	0.0132 (3)	0.0014 (2)	0.0010 (2)	0.0048 (2)
Te4	0.0058 (3)	0.0065 (3)	0.0098 (3)	0.0018 (2)	0.0001 (2)	0.0030 (2)
Te5	0.0064 (3)	0.0048 (2)	0.0103 (3)	0.0008 (2)	0.0000 (2)	0.0025 (2)
Te6	0.0085 (3)	0.0091 (3)	0.0123 (3)	0.0038 (2)	0.0017 (2)	0.0043 (2)
Te7	0.0078 (3)	0.0066 (3)	0.0121 (3)	−0.0004 (2)	−0.0010 (2)	0.0036 (2)
Te8	0.0070 (3)	0.0063 (3)	0.0108 (3)	0.0009 (2)	0.0005 (2)	0.0021 (2)
Te9	0.0107 (3)	0.0075 (3)	0.0156 (3)	0.0023 (2)	0.0016 (2)	0.0057 (2)
O1	0.011 (3)	0.007 (3)	0.011 (3)	0.002 (2)	0.001 (3)	0.006 (3)
O3	0.015 (3)	0.002 (3)	0.009 (3)	0.003 (2)	0.001 (3)	−0.001 (2)
O4	0.006 (3)	0.008 (3)	0.015 (3)	−0.002 (2)	−0.002 (3)	0.004 (3)
O5	0.006 (3)	0.012 (3)	0.024 (4)	0.002 (2)	0.004 (3)	0.011 (3)
O6	0.004 (3)	0.012 (3)	0.010 (3)	−0.001 (2)	0.000 (2)	0.003 (3)
O7	0.015 (3)	0.008 (3)	0.012 (3)	0.002 (2)	0.003 (3)	0.004 (3)
O8	0.007 (3)	0.012 (3)	0.020 (4)	−0.001 (2)	−0.004 (3)	0.003 (3)
O9	0.014 (3)	0.007 (3)	0.018 (4)	0.000 (2)	0.005 (3)	0.004 (3)
O10	0.017 (3)	0.006 (3)	0.014 (3)	0.001 (3)	−0.006 (3)	0.001 (3)
O11	0.007 (3)	0.017 (3)	0.014 (3)	0.007 (3)	0.002 (3)	0.009 (3)
O12	0.004 (3)	0.014 (3)	0.010 (3)	−0.002 (2)	−0.001 (2)	0.005 (3)
O13	0.011 (3)	0.008 (3)	0.012 (3)	0.001 (2)	−0.001 (3)	0.001 (3)
O14	0.007 (3)	0.006 (3)	0.022 (4)	0.005 (2)	0.001 (3)	0.004 (3)
O15	0.005 (3)	0.010 (3)	0.010 (3)	0.001 (2)	−0.001 (2)	0.006 (3)
O16	0.011 (3)	0.017 (3)	0.018 (4)	−0.001 (3)	−0.001 (3)	0.007 (3)
O17	0.006 (3)	0.013 (3)	0.016 (4)	0.000 (2)	−0.003 (3)	0.008 (3)
O18	0.006 (3)	0.017 (3)	0.015 (3)	−0.001 (3)	−0.001 (3)	0.005 (3)
O19	0.016 (3)	0.009 (3)	0.016 (4)	0.001 (3)	−0.004 (3)	0.002 (3)
O20	0.021 (4)	0.008 (3)	0.018 (4)	0.005 (3)	−0.005 (3)	0.001 (3)
O21	0.013 (3)	0.011 (3)	0.016 (4)	0.002 (3)	0.001 (3)	0.008 (3)
O22	0.015 (3)	0.020 (3)	0.012 (4)	−0.003 (3)	−0.002 (3)	0.005 (3)
O23	0.007 (3)	0.011 (3)	0.016 (3)	−0.001 (2)	−0.001 (3)	0.007 (3)
O24	0.010 (3)	0.004 (3)	0.015 (3)	0.002 (2)	−0.003 (3)	−0.003 (3)
O25	0.019 (4)	0.027 (4)	0.026 (4)	−0.003 (3)	0.003 (3)	0.023 (3)
O26	0.012 (3)	0.023 (4)	0.024 (4)	0.009 (3)	0.001 (3)	0.004 (3)
O27	0.069 (6)	0.010 (4)	0.026 (5)	−0.012 (4)	−0.016 (4)	0.007 (3)

Geometric parameters (Å, º) top

Yb1—O3	2.217 (6)	Yb6—O25^viii	2.276 (7)
Yb1—O22ⁱ	2.256 (7)	Yb6—O21	2.295 (6)
Yb1—O14ⁱ	2.273 (6)	Yb6—O17^ix	2.305 (6)
Yb1—O15ⁱ	2.374 (6)	Yb6—O10	2.531 (7)
Yb1—O12	2.386 (6)	Te1—O1	1.899 (6)
Yb1—O15ⁱⁱ	2.394 (6)	Te1—O2ⁱⁱ	1.906 (6)
Yb1—O14	2.437 (6)	Te1—O3	1.955 (6)
Yb1—O11ⁱ	2.485 (7)	Te1—O8	2.384 (6)
Yb2—O4ⁱⁱⁱ	2.219 (6)	Te2—O4	1.886 (6)
Yb2—O7^iv	2.249 (6)	Te2—O6	1.915 (6)
Yb2—O4ⁱ	2.271 (6)	Te2—O5	1.919 (6)
Yb2—O1^iv	2.279 (6)	Te2—O26	2.526 (7)
Yb2—O2	2.367 (6)	Te3—O7	1.867 (6)
Yb2—O6ⁱ	2.374 (6)	Te3—O9	1.881 (6)
Yb2—O13	2.384 (6)	Te3—O8^x	1.894 (6)
Yb2—O1^v	2.737 (6)	Te3—O20	2.697 (7)
Yb3—O19	2.194 (6)	Te4—O10	1.868 (6)
Yb3—O2	2.223 (6)	Te4—O11	1.884 (6)
Yb3—O11	2.225 (6)	Te4—O12	1.926 (6)
Yb3—O16	2.227 (7)	Te4—O23	2.531 (6)
Yb3—O15	2.309 (6)	Te5—O13ⁱ	1.858 (6)
Yb3—O12^v	2.425 (6)	Te5—O14	1.902 (6)
Yb3—O13	2.662 (6)	Te5—O15ⁱ	1.924 (6)
Yb3—O22	2.979 (7)	Te5—O5	2.691 (6)
Yb4—O5ⁱ	2.193 (6)	Te6—O16	1.855 (7)
Yb4—O6^vi	2.215 (6)	Te6—O17^ix	1.893 (6)
Yb4—O24	2.250 (6)	Te6—O18^v	1.926 (6)
Yb4—O3	2.271 (6)	Te6—O21	2.380 (6)
Yb4—O7	2.292 (6)	Te7—O19	1.862 (7)
Yb4—O1	2.399 (6)	Te7—O20^iv	1.884 (6)
Yb4—O9	2.476 (7)	Te7—O21	1.888 (6)
Yb5—O9	2.130 (6)	Te7—O10	2.645 (6)
Yb5—O27^vii	2.176 (7)	Te8—O22	1.844 (7)
Yb5—O18^vii	2.247 (7)	Te8—O23	1.868 (6)
Yb5—O26^vi	2.275 (7)	Te8—O24ⁱ	1.895 (6)
Yb5—O17^vi	2.396 (6)	Te8—O16	2.729 (7)
Yb5—O24	2.407 (7)	Te9—O25ⁱ	1.855 (6)
Yb5—O25	2.578 (7)	Te9—O26	1.859 (6)
Yb5—O27^vi	3.014 (9)	Te9—O27	1.874 (8)
Yb6—O18	2.250 (6)	Te9—O5	2.974 (7)
Yb6—O23	2.253 (6)

O3—Yb1—O22ⁱ	84.4 (2)	O25^viii—Yb6—O21	149.5 (3)
O3—Yb1—O14ⁱ	78.6 (2)	O20^viii—Yb6—O17^ix	94.9 (2)
O22ⁱ—Yb1—O14ⁱ	110.2 (2)	O18—Yb6—O17^ix	158.1 (2)
O3—Yb1—O15ⁱ	148.3 (2)	O23—Yb6—O17^ix	81.6 (2)
O22ⁱ—Yb1—O15ⁱ	83.6 (2)	O25^viii—Yb6—O17^ix	89.4 (2)
O14ⁱ—Yb1—O15ⁱ	133.1 (2)	O21—Yb6—O17^ix	68.8 (2)
O3—Yb1—O12	74.2 (2)	O20^viii—Yb6—O10	110.5 (2)
O22ⁱ—Yb1—O12	140.0 (2)	O18—Yb6—O10	70.0 (2)
O14ⁱ—Yb1—O12	98.3 (2)	O23—Yb6—O10	72.4 (2)
O15ⁱ—Yb1—O12	97.2 (2)	O25^viii—Yb6—O10	137.8 (2)
O3—Yb1—O15ⁱⁱ	80.7 (2)	O21—Yb6—O10	72.1 (2)
O22ⁱ—Yb1—O15ⁱⁱ	73.5 (2)	O17^ix—Yb6—O10	126.1 (2)
O14ⁱ—Yb1—O15ⁱⁱ	158.4 (2)	O1—Te1—O2ⁱⁱ	89.2 (3)
O15ⁱ—Yb1—O15ⁱⁱ	67.8 (2)	O1—Te1—O3	83.8 (3)
O12—Yb1—O15ⁱⁱ	70.0 (2)	O2ⁱⁱ—Te1—O3	92.8 (3)
O3—Yb1—O14	136.8 (2)	O1—Te1—O8	86.4 (2)
O22ⁱ—Yb1—O14	136.9 (2)	O2ⁱⁱ—Te1—O8	78.6 (2)
O14ⁱ—Yb1—O14	74.9 (2)	O3—Te1—O8	167.0 (2)
O15ⁱ—Yb1—O14	66.2 (2)	O4—Te2—O6	84.7 (3)
O12—Yb1—O14	76.5 (2)	O4—Te2—O5	94.4 (3)
O15ⁱⁱ—Yb1—O14	117.7 (2)	O6—Te2—O5	93.5 (3)
O3—Yb1—O11ⁱ	130.1 (2)	O4—Te2—O26	163.3 (3)
O22ⁱ—Yb1—O11ⁱ	69.1 (2)	O6—Te2—O26	82.0 (2)
O14ⁱ—Yb1—O11ⁱ	72.7 (2)	O5—Te2—O26	76.5 (3)
O15ⁱ—Yb1—O11ⁱ	71.3 (2)	O7—Te3—O9	84.1 (3)
O12—Yb1—O11ⁱ	148.8 (2)	O7—Te3—O8^x	99.8 (3)
O15ⁱⁱ—Yb1—O11ⁱ	126.6 (2)	O9—Te3—O8^x	92.1 (3)
O14—Yb1—O11ⁱ	72.3 (2)	O7—Te3—O20	89.4 (3)
O4ⁱⁱⁱ—Yb2—O7^iv	71.8 (2)	O9—Te3—O20	86.1 (2)
O4ⁱⁱⁱ—Yb2—O4ⁱ	65.0 (3)	O8^x—Te3—O20	170.4 (3)
O7^iv—Yb2—O4ⁱ	128.6 (2)	O10—Te4—O11	98.4 (3)
O4ⁱⁱⁱ—Yb2—O1^iv	90.8 (2)	O10—Te4—O12	103.3 (3)
O7^iv—Yb2—O1^iv	71.9 (2)	O11—Te4—O12	92.1 (3)
O4ⁱ—Yb2—O1^iv	82.0 (2)	O10—Te4—O23	78.7 (2)
O4ⁱⁱⁱ—Yb2—O2	123.4 (2)	O11—Te4—O23	83.2 (2)
O7^iv—Yb2—O2	71.7 (2)	O12—Te4—O23	175.2 (2)
O4ⁱ—Yb2—O2	157.9 (2)	O13ⁱ—Te5—O14	103.0 (3)
O1^iv—Yb2—O2	116.4 (2)	O13ⁱ—Te5—O15ⁱ	89.7 (3)
O4ⁱⁱⁱ—Yb2—O6ⁱ	129.3 (2)	O14—Te5—O15ⁱ	86.8 (3)
O7^iv—Yb2—O6ⁱ	157.4 (2)	O13ⁱ—Te5—O5	82.2 (2)
O4ⁱ—Yb2—O6ⁱ	66.8 (2)	O14—Te5—O5	99.3 (2)
O1^iv—Yb2—O6ⁱ	97.3 (2)	O15ⁱ—Te5—O5	170.8 (2)
O2—Yb2—O6ⁱ	97.2 (2)	O16—Te6—O17^ix	99.2 (3)
O4ⁱⁱⁱ—Yb2—O13	90.2 (2)	O16—Te6—O18^v	97.4 (3)
O7^iv—Yb2—O13	116.7 (2)	O17^ix—Te6—O18^v	84.1 (3)
O4ⁱ—Yb2—O13	90.5 (2)	O16—Te6—O21	87.5 (3)
O1^iv—Yb2—O13	171.2 (2)	O17^ix—Te6—O21	73.9 (2)
O2—Yb2—O13	70.0 (2)	O18^v—Te6—O21	157.9 (2)
O6ⁱ—Yb2—O13	75.4 (2)	O19—Te7—O20^iv	95.8 (3)
O4ⁱⁱⁱ—Yb2—O1^v	154.0 (2)	O19—Te7—O21	96.6 (3)
O7^iv—Yb2—O1^v	88.8 (2)	O20^iv—Te7—O21	96.9 (3)
O4ⁱ—Yb2—O1^v	120.2 (2)	O19—Te7—O10	85.2 (2)
O1^iv—Yb2—O1^v	66.3 (2)	O20^iv—Te7—O10	172.7 (3)
O2—Yb2—O1^v	62.7 (2)	O21—Te7—O10	75.8 (2)
O6ⁱ—Yb2—O1^v	68.62 (19)	O22—Te8—O23	102.6 (3)
O13—Yb2—O1^v	114.33 (19)	O22—Te8—O24ⁱ	97.2 (3)
O19—Yb3—O2	74.8 (2)	O23—Te8—O24ⁱ	97.7 (3)
O19—Yb3—O11	93.8 (2)	O22—Te8—O16	75.0 (3)
O2—Yb3—O11	144.5 (2)	O23—Te8—O16	80.9 (2)
O19—Yb3—O16	88.9 (2)	O24ⁱ—Te8—O16	171.4 (2)
O2—Yb3—O16	113.1 (2)	O25ⁱ—Te9—O26	101.5 (3)
O11—Yb3—O16	99.8 (2)	O25ⁱ—Te9—O27	98.2 (3)
O19—Yb3—O15	141.9 (2)	O26—Te9—O27	89.3 (4)
O2—Yb3—O15	91.1 (2)	O25ⁱ—Te9—O5	85.2 (3)
O11—Yb3—O15	77.4 (2)	O26—Te9—O5	66.0 (3)
O16—Yb3—O15	128.9 (2)	O27—Te9—O5	155.2 (3)
O19—Yb3—O12^v	132.2 (2)	Te1—O1—Yb2^iv	133.7 (3)
O2—Yb3—O12^v	70.3 (2)	Te1—O1—Yb4	102.2 (2)
O11—Yb3—O12^v	133.1 (2)	Yb2^iv—O1—Yb4	106.4 (2)
O16—Yb3—O12^v	76.2 (2)	Te1—O1—Yb2ⁱⁱ	97.2 (2)
O15—Yb3—O12^v	70.7 (2)	Yb2^iv—O1—Yb2ⁱⁱ	113.7 (2)
O19—Yb3—O13	77.5 (2)	Yb4—O1—Yb2ⁱⁱ	98.0 (2)
O2—Yb3—O13	67.1 (2)	Te1^v—O2—Yb3	124.1 (3)
O11—Yb3—O13	77.7 (2)	Te1^v—O2—Yb2	110.6 (3)
O16—Yb3—O13	165.9 (2)	Yb3—O2—Yb2	116.5 (3)
O15—Yb3—O13	64.5 (2)	Te1—O3—Yb1	116.8 (3)
O12^v—Yb3—O13	115.8 (2)	Te1—O3—Yb4	105.0 (2)
O19—Yb3—O22	136.8 (2)	Yb1—O3—Yb4	137.7 (3)
O2—Yb3—O22	146.0 (2)	Te2—O4—Yb2^xi	134.0 (3)
O11—Yb3—O22	60.4 (2)	Te2—O4—Yb2ⁱ	106.5 (3)
O16—Yb3—O22	65.1 (2)	Yb2^xi—O4—Yb2ⁱ	115.0 (3)
O15—Yb3—O22	70.1 (2)	Te2—O5—Yb4ⁱ	122.0 (3)
O12^v—Yb3—O22	76.71 (19)	Te2—O6—Yb4^vi	130.6 (3)
O13—Yb3—O22	123.25 (18)	Te2—O6—Yb2ⁱ	101.7 (2)
O5ⁱ—Yb4—O6^vi	171.8 (2)	Yb4^vi—O6—Yb2ⁱ	115.5 (3)
O5ⁱ—Yb4—O24	87.4 (2)	Te3—O7—Yb2^iv	126.1 (3)
O6^vi—Yb4—O24	98.7 (2)	Te3—O7—Yb4	107.8 (3)
O5ⁱ—Yb4—O3	87.4 (2)	Yb2^iv—O7—Yb4	111.1 (3)
O6^vi—Yb4—O3	86.8 (2)	Te3^x—O8—Te1	111.5 (3)
O24—Yb4—O3	94.5 (2)	Te3^x—O8—Te2ⁱⁱⁱ	118.0 (3)
O5ⁱ—Yb4—O7	81.1 (2)	Te1—O8—Te2ⁱⁱⁱ	123.5 (3)
O6^vi—Yb4—O7	98.8 (2)	Te3—O9—Yb5	152.1 (4)
O24—Yb4—O7	129.9 (2)	Te3—O9—Yb4	100.4 (3)
O3—Yb4—O7	133.0 (2)	Yb5—O9—Yb4	104.7 (2)
O5ⁱ—Yb4—O1	94.8 (2)	Te4—O10—Yb6	106.7 (3)
O6^vi—Yb4—O1	77.7 (2)	Te4—O11—Yb3	138.5 (3)
O24—Yb4—O1	161.1 (2)	Te4—O11—Yb1ⁱ	117.9 (3)
O3—Yb4—O1	66.9 (2)	Yb3—O11—Yb1ⁱ	98.0 (2)
O7—Yb4—O1	69.0 (2)	Te4—O12—Yb1	117.8 (3)
O5ⁱ—Yb4—O9	107.4 (2)	Te4—O12—Yb3ⁱⁱ	123.1 (3)
O6^vi—Yb4—O9	79.6 (2)	Yb1—O12—Yb3ⁱⁱ	107.7 (2)
O24—Yb4—O9	74.2 (2)	Te5ⁱ—O13—Yb2	120.9 (3)
O3—Yb4—O9	160.6 (2)	Te5ⁱ—O13—Yb3	97.3 (2)
O7—Yb4—O9	63.4 (2)	Yb2—O13—Yb3	101.2 (2)
O1—Yb4—O9	122.5 (2)	Te5—O14—Yb1ⁱ	145.5 (3)
O9—Yb5—O27^vii	152.5 (3)	Te5—O14—Yb1	102.4 (3)
O9—Yb5—O18^vii	91.7 (2)	Yb1ⁱ—O14—Yb1	105.1 (2)
O27^vii—Yb5—O18^vii	95.0 (3)	Te5ⁱ—O15—Yb3	108.2 (3)
O9—Yb5—O26^vi	79.5 (3)	Te5ⁱ—O15—Yb1ⁱ	104.0 (2)
O27^vii—Yb5—O26^vi	108.5 (3)	Yb3—O15—Yb1ⁱ	98.9 (2)
O18^vii—Yb5—O26^vi	144.8 (2)	Te5ⁱ—O15—Yb1^v	119.9 (3)
O9—Yb5—O17^vi	87.2 (2)	Yb3—O15—Yb1^v	111.4 (2)
O27^vii—Yb5—O17^vi	119.9 (3)	Yb1ⁱ—O15—Yb1^v	112.2 (2)
O18^vii—Yb5—O17^vi	66.7 (2)	Te6—O16—Yb3	140.9 (3)
O26^vi—Yb5—O17^vi	78.7 (2)	Te6^ix—O17—Yb6^ix	113.4 (3)
O9—Yb5—O24	77.8 (2)	Te6^ix—O17—Yb5^vi	101.2 (2)
O27^vii—Yb5—O24	79.5 (3)	Yb6^ix—O17—Yb5^vi	144.8 (3)
O18^vii—Yb5—O24	138.2 (2)	Te6ⁱⁱ—O18—Yb5^viii	105.5 (3)
O26^vi—Yb5—O24	73.5 (2)	Te6ⁱⁱ—O18—Yb6	123.6 (3)
O17^vi—Yb5—O24	150.3 (2)	Yb5^viii—O18—Yb6	117.8 (3)
O9—Yb5—O25	80.8 (2)	Te7—O19—Yb3	141.9 (4)
O27^vii—Yb5—O25	78.0 (3)	Te7^iv—O20—Yb6^vii	124.2 (3)
O18^vii—Yb5—O25	65.1 (2)	Te7—O21—Yb6	118.8 (3)
O26^vi—Yb5—O25	144.2 (2)	Te7—O21—Te6	131.9 (3)
O17^vi—Yb5—O25	129.7 (2)	Yb6—O21—Te6	97.5 (2)
O24—Yb5—O25	73.3 (2)	Te8—O22—Yb1ⁱ	142.4 (4)
O9—Yb5—O27^vi	134.4 (2)	Te8—O22—Yb3	106.6 (3)
O27^vii—Yb5—O27^vi	65.5 (4)	Yb1ⁱ—O22—Yb3	84.5 (2)
O18^vii—Yb5—O27^vi	114.1 (2)	Te8—O23—Yb6	130.8 (3)
O26^vi—Yb5—O27^vi	57.5 (2)	Te8ⁱ—O24—Yb4	138.4 (3)
O17^vi—Yb5—O27^vi	71.4 (2)	Te8ⁱ—O24—Yb5	106.4 (3)
O24—Yb5—O27^vi	101.3 (2)	Yb4—O24—Yb5	103.2 (2)
O25—Yb5—O27^vi	143.4 (2)	Te9ⁱ—O25—Yb6^vii	130.6 (4)
O20^viii—Yb6—O18	91.6 (2)	Te9ⁱ—O25—Yb5	121.7 (3)
O20^viii—Yb6—O23	176.4 (2)	Yb6^vii—O25—Yb5	104.8 (2)
O18—Yb6—O23	91.4 (2)	Te9—O26—Yb5^vi	120.9 (4)
O20^viii—Yb6—O25^viii	84.6 (3)	Te9—O26—Te2	111.1 (3)
O18—Yb6—O25^viii	70.4 (2)	Yb5^vi—O26—Te2	119.2 (3)
O23—Yb6—O25^viii	94.5 (2)	Te9—O27—Yb5^viii	131.9 (4)
O20^viii—Yb6—O21	76.7 (2)	Te9—O27—Yb5^vi	91.9 (3)
O18—Yb6—O21	133.1 (2)	Yb5^viii—O27—Yb5^vi	114.5 (4)
O23—Yb6—O21	102.7 (2)

Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x−1, y, z; (iii) x, y−1, z; (iv) −x+1, −y, −z+1; (v) x+1, y, z; (vi) −x, −y+1, −z+1; (vii) x, y, z+1; (viii) x, y, z−1; (ix) −x+1, −y+1, −z; (x) −x, −y, −z+1; (xi) x, y+1, z.

Acknowledgements

We thank Dr Falk Lissner for the single-crystal X-ray diffraction measurements.

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