Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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The α-phase of SrTeO₃ at 295 K

V. E. Zavodnik, S. A. Ivanov and A. I. Stash

The crystal structure of strontium tellurite (STO), SrTeO₃, has been determined at room temperature using X-ray diffraction data obtained from single crystals grown by the Czochralski method. Selection of a non-centrosymmetric (C2) structure model was confirmed by the second harmonic generation test. The structure of STO is built up of three types of distorted [SrO_x] polyhedra (x = 6, 7 and 8) which share their oxygen anions with TeO₃ pyramidal units. These main anionic polyhedra are responsible for establishing two types of tunnels required for the electron lone pairs of the Te⁴⁺ cation.

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Supporting information

	Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680700164X/br2023sup1.cif Contains datablocks I, global
	Structure factor file (CIF format) https://doi.org/10.1107/S160053680700164X/br2023Isup2.hkl Contains datablock I

checkCIF report

Key indicators

Single-crystal X-ray study
T = 295 K
Mean (e-O) = 0.011 Å
R factor = 0.028
wR factor = 0.068
Data-to-parameter ratio = 17.9

checkCIF/PLATON results

No syntax errors found



Alert level A
PLAT432_ALERT_2_A Short Inter X...Y Contact  Te3    ..  O11     ..       2.92 Ang.

Author Response: see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

PLAT432_ALERT_2_A Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.

Author Response: see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

PLAT432_ALERT_2_A Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.

Author Response: see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .


Alert level C
CELLV02_ALERT_1_C  The supplied cell volume s.u. differs from that
            calculated from the cell parameter s.u.'s by > 2
            Calculated cell volume su =      10.08
            Cell volume su given      =       8.00
RADNW01_ALERT_1_C  The radiation wavelength lies outside the expected range
            for the supplied radiation type. Expected range 0.56080-0.56085
            Wavelength given =    0.56086
PLAT034_ALERT_1_C No Flack Parameter Given. Z .GT. Si, NonCentro .          ?
PLAT152_ALERT_1_C Supplied and Calc Volume s.u. Inconsistent .....          ?
PLAT220_ALERT_2_C Large Non-Solvent    O     Ueq(max)/Ueq(min) ...       2.67 Ratio
PLAT430_ALERT_2_C Short Inter D...A Contact  O31    ..  O61     ..       2.88 Ang.
PLAT430_ALERT_2_C Short Inter D...A Contact  O33    ..  O61     ..       2.88 Ang.
PLAT430_ALERT_2_C Short Inter D...A Contact  O51    ..  O61     ..       2.87 Ang.
PLAT432_ALERT_2_C Short Inter X...Y Contact  Te5    ..  O32     ..       3.28 Ang.

Author Response: see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

PLAT432_ALERT_2_C Short Inter X...Y Contact  Te5    ..  O13     ..       3.33 Ang.

Author Response: see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

PLAT432_ALERT_2_C Short Inter X...Y Contact  Te5    ..  O12     ..       3.35 Ang.

Author Response: see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O33     ..       2.75 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .

 PROBLEM: Short Inter X...Y Contact  Te6    ..  O31     ..       2.88 Ang.
 RESPONSE: see _publ_section_comment .
  see _publ_section_comment .


Alert level G
ABSTM02_ALERT_3_G  The ratio of expected to reported Tmax/Tmin(RR) is > 2.00
            Tmin and Tmax reported:      0.138     0.381
            Tmin and Tmax expected:      0.052     0.331
            RR =      2.288
            Please check that your absorption correction is appropriate.
REFLT03_ALERT_4_G  WARNING: Large fraction of Friedel related reflns may
                     be needed to determine absolute structure
           From the CIF: _diffrn_reflns_theta_max           22.97
           From the CIF: _reflns_number_total               3277
           Count of symmetry unique reflns         3299
           Completeness (_total/calc)             99.33%
           TEST3: Check Friedels for noncentro structure
           Estimate of Friedel pairs measured         0
           Fraction of Friedel pairs measured     0.000
           Are heavy atom types Z>Si present        yes
PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature .        293 K

   3 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
  11 ALERT level C = Check and explain
   3 ALERT level G = General alerts; check

   5 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
  10 ALERT type 2 Indicator that the structure model may be wrong or deficient
   1 ALERT type 3 Indicator that the structure quality may be low
   1 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

Computing details top

Data collection: CAD-4-PC (Enraf–Nonius, 1993); cell refinement: CAD-4-PC; data reduction: CAD-4-PC; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: DIAMOND (Brandenburg, 2005); software used to prepare material for publication: CIFTAB97 (Sheldrick, 1997).

strontium tellurite top

Crystal data top

SrTeO₃	F(000) = 2736
M_r = 263.22	D_x = 4.887 Mg m⁻³
Monoclinic, C2	Ag Kα radiation, λ = 0.56086 Å
Hall symbol: C 2y	Cell parameters from 24 reflections
a = 28.151 (6) Å	θ = 12.5–14.7°
b = 5.897 (1) Å	µ = 12.28 mm⁻¹
c = 15.261 (3) Å	T = 295 K
β = 122.09 (3)°	Prism, colourless
V = 2146.3 (8) Å³	0.24 × 0.22 × 0.09 mm
Z = 24

Data collection top

Enraf–Nonius CAD-4 diffractometer	2061 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	R_int = 0.026
β-filter monochromator	θ_max = 23.0°, θ_min = 2.3°
ω/2θ scans	h = −34→38
Absorption correction: analytical (Alcock, 1970)	k = −8→0
T_min = 0.138, T_max = 0.381	l = −17→21
3410 measured reflections	3 standard reflections every 60 min
3277 independent reflections	intensity decay: none

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.028	w = 1/[σ²(F_o²) + (0.0405P)²]
wR(F²) = 0.068	(Δ/σ)_max = 0.001
S = 0.94	Δρ_max = 3.80 e Å⁻³
3277 reflections	Δρ_min = −2.16 e Å⁻³
183 parameters	Extinction correction: SHELXL97, Fc^*=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4
1 restraint	Extinction coefficient: 0.00035 (3)

Special details top

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

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

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

	x	y	z	U_iso*/U_eq
Te1	−0.02091 (3)	0.42844 (19)	0.14820 (5)	0.01340 (15)
Te2	0.49342 (3)	0.43320 (19)	0.65256 (5)	0.01180 (14)
Te3	0.11352 (3)	−0.0584 (2)	0.27859 (5)	0.01102 (13)
Te4	0.35336 (3)	−0.04424 (19)	0.22079 (6)	0.01521 (16)
Te5	0.14924 (3)	0.91980 (17)	0.00072 (5)	0.01320 (16)
Te6	0.26279 (3)	0.45262 (19)	0.41884 (5)	0.00959 (15)
Sr1	0.12277 (3)	0.4462 (3)	0.41850 (6)	0.01153 (17)
Sr2	0.24678 (4)	0.4650 (3)	0.11049 (7)	0.0121 (2)
Sr3	0.24301 (4)	−0.0385 (3)	0.27858 (7)	0.0167 (2)
Sr4	0.37734 (4)	0.4199 (3)	0.39371 (7)	0.0129 (2)
Sr5	0.12633 (3)	0.4392 (3)	0.15586 (6)	0.01158 (18)
Sr6	0.0000	−0.0939 (3)	0.0000	0.0165 (4)
Sr7	0.5000	0.8966 (3)	0.5000	0.0137 (3)
O11	0.0555 (4)	0.5065 (15)	0.2158 (6)	0.0176 (19)*
O12	−0.0194 (5)	0.133 (2)	0.1132 (8)	0.036 (3)*
O13	−0.0503 (4)	0.5710 (18)	0.0221 (7)	0.025 (2)*
O21	0.4404 (4)	0.6562 (16)	0.5747 (7)	0.0174 (19)*
O22	0.5447 (4)	0.5336 (18)	0.6211 (7)	0.023 (2)*
O23	0.4538 (4)	0.1913 (17)	0.5624 (7)	0.0178 (19)*
O31	0.1620 (4)	0.1874 (18)	0.3371 (7)	0.020 (2)*
O32	0.0968 (3)	−0.0118 (14)	0.1460 (5)	0.0128 (16)*
O33	0.1682 (4)	−0.2823 (17)	0.3169 (8)	0.022 (2)*
O41	0.3235 (5)	−0.3008 (17)	0.2467 (8)	0.021 (2)*
O42	0.4122 (5)	0.030 (2)	0.3459 (8)	0.036 (3)*
O43	0.3062 (4)	0.1619 (17)	0.2293 (7)	0.0164 (19)*
O51	0.1789 (3)	0.7291 (14)	0.1156 (6)	0.0116 (16)*
O52	0.2086 (5)	0.8573 (19)	−0.0165 (8)	0.031 (2)*
O53	0.1698 (4)	1.1927 (18)	0.0694 (7)	0.022 (2)*
O61	0.2331 (3)	0.4019 (16)	0.2788 (5)	0.0148 (16)*
O62	0.3069 (4)	0.6984 (16)	0.4295 (7)	0.0126 (18)*
O63	0.3168 (4)	0.2248 (17)	0.4548 (7)	0.017 (2)*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Te1	0.0091 (3)	0.0157 (4)	0.0152 (3)	−0.0001 (5)	0.0063 (2)	−0.0004 (4)
Te2	0.0096 (3)	0.0118 (4)	0.0151 (3)	0.0000 (5)	0.0072 (2)	0.0004 (5)
Te3	0.0101 (3)	0.0097 (3)	0.0156 (3)	0.0008 (5)	0.0084 (2)	−0.0004 (5)
Te4	0.0129 (3)	0.0109 (4)	0.0260 (3)	−0.0001 (4)	0.0131 (3)	−0.0017 (4)
Te5	0.0110 (3)	0.0112 (4)	0.0140 (3)	−0.0002 (4)	0.0044 (2)	−0.0001 (4)
Te6	0.0073 (3)	0.0099 (4)	0.0121 (3)	0.0007 (5)	0.0055 (2)	0.0009 (4)
Sr1	0.0091 (3)	0.0091 (4)	0.0140 (4)	−0.0024 (6)	0.0046 (3)	−0.0024 (6)
Sr2	0.0089 (3)	0.0113 (6)	0.0165 (4)	0.0010 (5)	0.0070 (3)	0.0011 (5)
Sr3	0.0168 (4)	0.0163 (6)	0.0159 (4)	−0.0041 (6)	0.0079 (3)	−0.0009 (5)
Sr4	0.0086 (4)	0.0138 (6)	0.0157 (4)	−0.0004 (5)	0.0060 (3)	0.0023 (5)
Sr5	0.0073 (3)	0.0135 (5)	0.0138 (4)	0.0007 (7)	0.0055 (3)	0.0008 (6)
Sr6	0.0077 (5)	0.0159 (10)	0.0204 (6)	0.000	0.0038 (5)	0.000
Sr7	0.0083 (5)	0.0097 (9)	0.0221 (6)	0.000	0.0074 (5)	0.000

Geometric parameters (Å, º) top

Te1—O12	1.829 (13)	Sr3—O63	2.832 (10)
Te1—O13	1.845 (10)	Sr3—O33	2.855 (11)
Te1—O11	1.883 (9)	Sr3—O41	2.990 (11)
Te2—O22	1.844 (10)	Sr3—O53^v	3.051 (10)
Te2—O21	1.867 (9)	Sr3—O31	3.151 (11)
Te2—O23	1.882 (10)	Sr4—O22^vi	2.417 (10)
Te3—O32	1.838 (7)	Sr4—O41ⁱⁱⁱ	2.536 (10)
Te3—O31	1.862 (10)	Sr4—O63	2.605 (10)
Te3—O33	1.871 (11)	Sr4—O23	2.681 (10)
Te4—O42	1.796 (11)	Sr4—O43	2.698 (10)
Te4—O43	1.854 (10)	Sr4—O21	2.740 (9)
Te4—O41	1.872 (11)	Sr4—O42	2.745 (13)
Te5—O53	1.838 (10)	Sr4—O62	2.843 (10)
Te5—O52	1.862 (12)	Sr5—O13^vii	2.526 (10)
Te5—O51	1.866 (8)	Sr5—O51	2.540 (9)
Te6—O62	1.858 (10)	Sr5—O61	2.571 (7)
Te6—O61	1.860 (7)	Sr5—O11	2.628 (9)
Te6—O63	1.879 (10)	Sr5—O33ⁱⁱⁱ	2.655 (10)
Sr1—O63ⁱ	2.417 (10)	Sr5—O53^v	2.659 (10)
Sr1—O21ⁱⁱ	2.509 (10)	Sr5—O32	2.767 (8)
Sr1—O31	2.560 (11)	Sr5—O31	2.813 (10)
Sr1—O62ⁱⁱ	2.561 (9)	Sr6—O12	2.464 (12)
Sr1—O11	2.657 (8)	Sr6—O12^vii	2.464 (12)
Sr1—O23ⁱ	2.736 (10)	Sr6—O32^vii	2.484 (8)
Sr1—O33ⁱⁱⁱ	2.952 (11)	Sr6—O32	2.484 (8)
Sr2—O52^iv	2.439 (11)	Sr6—O13^v	2.557 (11)
Sr2—O43	2.461 (9)	Sr6—O13^viii	2.557 (11)
Sr2—O41ⁱⁱⁱ	2.474 (10)	Sr7—O42^ix	2.467 (12)
Sr2—O53^v	2.494 (10)	Sr7—O42ⁱⁱⁱ	2.467 (11)
Sr2—O51	2.499 (9)	Sr7—O23^ix	2.634 (11)
Sr2—O61	2.816 (7)	Sr7—O23ⁱⁱⁱ	2.634 (11)
Sr2—O52	2.837 (11)	Sr7—O22^vi	2.667 (10)
Sr3—O62^v	2.558 (9)	Sr7—O22	2.667 (10)
Sr3—O51^v	2.560 (8)	Sr7—O21^vi	2.855 (11)
Sr3—O43	2.560 (10)	Sr7—O21	2.855 (11)
Sr3—O61	2.612 (10)

O12—Te1—O13	101.3 (5)	O13^vii—Sr5—O32	100.3 (3)
O12—Te1—O11	101.2 (5)	O51—Sr5—O32	146.2 (3)
O13—Te1—O11	102.1 (4)	O61—Sr5—O32	99.1 (3)
O22—Te2—O21	94.6 (5)	O11—Sr5—O32	84.4 (3)
O22—Te2—O23	107.2 (4)	O33ⁱⁱⁱ—Sr5—O32	128.1 (3)
O21—Te2—O23	96.0 (4)	O53^v—Sr5—O32	69.7 (3)
O32—Te3—O31	96.1 (4)	O13^vii—Sr5—O31	151.1 (3)
O32—Te3—O33	97.9 (4)	O51—Sr5—O31	130.0 (3)
O31—Te3—O33	97.3 (4)	O61—Sr5—O31	64.5 (3)
O42—Te4—O43	93.2 (5)	O11—Sr5—O31	71.2 (3)
O42—Te4—O41	103.8 (5)	O33ⁱⁱⁱ—Sr5—O31	70.4 (3)
O43—Te4—O41	95.6 (5)	O53^v—Sr5—O31	100.4 (3)
O53—Te5—O52	102.6 (5)	O32—Sr5—O31	59.1 (3)
O53—Te5—O51	98.3 (5)	O12—Sr6—O12^vii	114.2 (6)
O52—Te5—O51	91.5 (4)	O12—Sr6—O32^vii	88.7 (3)
O62—Te6—O61	95.6 (4)	O12^vii—Sr6—O32^vii	79.1 (3)
O62—Te6—O63	97.7 (4)	O12—Sr6—O32	79.1 (3)
O61—Te6—O63	91.1 (4)	O12^vii—Sr6—O32	88.7 (3)
O62—Te6—Sr4	55.5 (3)	O32^vii—Sr6—O32	157.5 (4)
O61—Te6—Sr4	74.9 (2)	O12—Sr6—O13^v	89.0 (4)
O63—Te6—Sr4	48.2 (3)	O12^vii—Sr6—O13^v	149.0 (3)
O63ⁱ—Sr1—O21ⁱⁱ	130.1 (3)	O32^vii—Sr6—O13^v	81.3 (3)
O63ⁱ—Sr1—O31	119.4 (3)	O32—Sr6—O13^v	116.9 (3)
O21ⁱⁱ—Sr1—O31	96.5 (3)	O12—Sr6—O13^viii	149.0 (3)
O63ⁱ—Sr1—O62ⁱⁱ	77.6 (3)	O12^vii—Sr6—O13^viii	89.0 (4)
O21ⁱⁱ—Sr1—O62ⁱⁱ	78.3 (3)	O32^vii—Sr6—O13^viii	116.9 (3)
O31—Sr1—O62ⁱⁱ	76.9 (3)	O32—Sr6—O13^viii	81.3 (3)
O63ⁱ—Sr1—O11	127.2 (3)	O13^v—Sr6—O13^viii	78.7 (5)
O21ⁱⁱ—Sr1—O11	93.3 (3)	O42^ix—Sr7—O42ⁱⁱⁱ	142.7 (6)
O31—Sr1—O11	74.9 (3)	O42^ix—Sr7—O23^ix	72.3 (3)
O62ⁱⁱ—Sr1—O11	149.4 (3)	O42ⁱⁱⁱ—Sr7—O23^ix	83.2 (4)
O63ⁱ—Sr1—O23ⁱ	79.4 (3)	O42^ix—Sr7—O23ⁱⁱⁱ	83.2 (4)
O21ⁱⁱ—Sr1—O23ⁱ	74.9 (4)	O42ⁱⁱⁱ—Sr7—O23ⁱⁱⁱ	72.3 (3)
O31—Sr1—O23ⁱ	159.1 (3)	O23^ix—Sr7—O23ⁱⁱⁱ	97.4 (4)
O62ⁱⁱ—Sr1—O23ⁱ	118.6 (3)	O42^ix—Sr7—O22^vi	141.5 (4)
O11—Sr1—O23ⁱ	86.5 (3)	O42ⁱⁱⁱ—Sr7—O22^vi	74.4 (4)
O63ⁱ—Sr1—O33ⁱⁱⁱ	74.6 (3)	O23^ix—Sr7—O22^vi	114.9 (3)
O21ⁱⁱ—Sr1—O33ⁱⁱⁱ	155.0 (3)	O23ⁱⁱⁱ—Sr7—O22^vi	129.7 (3)
O31—Sr1—O33ⁱⁱⁱ	69.4 (3)	O42^ix—Sr7—O22	74.4 (4)
O62ⁱⁱ—Sr1—O33ⁱⁱⁱ	116.3 (3)	O42ⁱⁱⁱ—Sr7—O22	141.5 (4)
O11—Sr1—O33ⁱⁱⁱ	63.6 (3)	O23^ix—Sr7—O22	129.7 (3)
O23ⁱ—Sr1—O33ⁱⁱⁱ	110.8 (3)	O23ⁱⁱⁱ—Sr7—O22	114.9 (3)
O52^iv—Sr2—O43	83.3 (3)	O22^vi—Sr7—O22	73.2 (4)
O52^iv—Sr2—O41ⁱⁱⁱ	98.4 (4)	O42^ix—Sr7—O21^vi	92.1 (3)
O43—Sr2—O41ⁱⁱⁱ	80.7 (3)	O42ⁱⁱⁱ—Sr7—O21^vi	106.4 (3)
O52^iv—Sr2—O53^v	109.5 (4)	O23^ix—Sr7—O21^vi	71.1 (3)
O43—Sr2—O53^v	83.0 (3)	O23ⁱⁱⁱ—Sr7—O21^vi	168.5 (3)
O41ⁱⁱⁱ—Sr2—O53^v	145.6 (3)	O22^vi—Sr7—O21^vi	59.1 (3)
O52^iv—Sr2—O51	145.3 (3)	O22—Sr7—O21^vi	73.6 (3)
O43—Sr2—O51	131.4 (3)	O42^ix—Sr7—O21	106.4 (3)
O41ⁱⁱⁱ—Sr2—O51	88.1 (3)	O42ⁱⁱⁱ—Sr7—O21	92.1 (3)
O53^v—Sr2—O51	80.3 (3)	O23^ix—Sr7—O21	168.5 (3)
O52^iv—Sr2—O61	149.8 (3)	O23ⁱⁱⁱ—Sr7—O21	71.1 (3)
O43—Sr2—O61	66.5 (3)	O22^vi—Sr7—O21	73.6 (3)
O41ⁱⁱⁱ—Sr2—O61	77.8 (3)	O22—Sr7—O21	59.1 (3)
O53^v—Sr2—O61	67.9 (3)	O21^vi—Sr7—O21	120.5 (4)
O51—Sr2—O61	64.9 (3)	Te1—O11—Sr5	129.0 (4)
O52^iv—Sr2—O52	86.4 (3)	Te1—O11—Sr1	120.3 (4)
O43—Sr2—O52	163.3 (3)	Sr5—O11—Sr1	100.5 (3)
O41ⁱⁱⁱ—Sr2—O52	87.9 (3)	Te1—O12—Sr6	140.4 (6)
O53^v—Sr2—O52	113.0 (3)	Te1—O13—Sr5^vii	129.5 (5)
O51—Sr2—O52	59.7 (3)	Te1—O13—Sr6ⁱⁱⁱ	121.1 (5)
O61—Sr2—O52	123.0 (3)	Sr5^vii—O13—Sr6ⁱⁱⁱ	107.9 (4)
O62^v—Sr3—O51^v	110.2 (3)	Te2—O21—Sr1ⁱ	142.9 (5)
O62^v—Sr3—O43	106.2 (3)	Te2—O21—Sr4	98.9 (4)
O51^v—Sr3—O43	101.7 (3)	Sr1ⁱ—O21—Sr4	107.1 (3)
O62^v—Sr3—O61	128.8 (3)	Te2—O21—Sr7	99.4 (4)
O51^v—Sr3—O61	120.8 (2)	Sr1ⁱ—O21—Sr7	104.9 (3)
O43—Sr3—O61	68.4 (3)	Sr4—O21—Sr7	93.1 (3)
O62^v—Sr3—O63	70.6 (2)	Te2—O22—Sr4^vi	144.1 (5)
O51^v—Sr3—O63	177.4 (3)	Te2—O22—Sr7	106.9 (4)
O43—Sr3—O63	75.7 (3)	Sr4^vi—O22—Sr7	106.0 (4)
O61—Sr3—O63	58.6 (3)	Te2—O23—Sr7^v	123.3 (5)
O62^v—Sr3—O33	75.6 (3)	Te2—O23—Sr4	100.5 (4)
O51^v—Sr3—O33	73.3 (3)	Sr7^v—O23—Sr4	106.5 (3)
O43—Sr3—O33	175.0 (3)	Te2—O23—Sr1ⁱⁱ	121.1 (5)
O61—Sr3—O33	114.2 (3)	Sr7^v—O23—Sr1ⁱⁱ	105.0 (3)
O63—Sr3—O33	109.3 (3)	Sr4—O23—Sr1ⁱⁱ	95.3 (3)
O62^v—Sr3—O41	66.5 (3)	Te3—O31—Sr1	107.5 (5)
O51^v—Sr3—O41	76.7 (3)	Te3—O31—Sr5	98.7 (4)
O43—Sr3—O41	59.0 (3)	Sr1—O31—Sr5	98.1 (3)
O61—Sr3—O41	127.2 (3)	Te3—O31—Sr3	89.5 (4)
O63—Sr3—O41	101.6 (3)	Sr1—O31—Sr3	162.4 (4)
O33—Sr3—O41	118.6 (3)	Sr5—O31—Sr3	83.0 (3)
O62^v—Sr3—O53^v	166.9 (3)	Te3—O32—Sr6	118.5 (4)
O51^v—Sr3—O53^v	59.1 (3)	Te3—O32—Sr5	101.0 (3)
O43—Sr3—O53^v	71.0 (3)	Sr6—O32—Sr5	113.0 (3)
O61—Sr3—O53^v	62.8 (2)	Te3—O33—Sr5^v	105.1 (4)
O63—Sr3—O53^v	119.7 (3)	Te3—O33—Sr3	98.9 (4)
O33—Sr3—O53^v	106.1 (3)	Sr5^v—O33—Sr3	97.8 (4)
O41—Sr3—O53^v	102.1 (3)	Te3—O33—Sr1^v	91.9 (4)
O62^v—Sr3—O31	105.6 (3)	Sr5^v—O33—Sr1^v	92.7 (3)
O51^v—Sr3—O31	105.0 (3)	Sr3—O33—Sr1^v	162.5 (4)
O43—Sr3—O31	127.5 (3)	Te4—O41—Sr2^v	124.3 (5)
O61—Sr3—O31	59.1 (3)	Te4—O41—Sr4^v	126.0 (5)
O63—Sr3—O31	77.0 (3)	Sr2^v—O41—Sr4^v	103.0 (4)
O33—Sr3—O31	55.4 (2)	Te4—O41—Sr3	94.6 (4)
O41—Sr3—O31	171.8 (3)	Sr2^v—O41—Sr3	91.5 (3)
O53^v—Sr3—O31	85.4 (3)	Sr4^v—O41—Sr3	109.9 (4)
O22^vi—Sr4—O41ⁱⁱⁱ	83.2 (4)	Te4—O42—Sr7^v	145.7 (7)
O22^vi—Sr4—O63	162.8 (3)	Te4—O42—Sr4	103.3 (5)
O41ⁱⁱⁱ—Sr4—O63	114.0 (3)	Sr7^v—O42—Sr4	109.4 (4)
O22^vi—Sr4—O23	85.6 (3)	Te4—O43—Sr2	131.0 (5)
O41ⁱⁱⁱ—Sr4—O23	166.8 (3)	Te4—O43—Sr3	110.7 (4)
O63—Sr4—O23	77.2 (3)	Sr2—O43—Sr3	104.2 (4)
O22^vi—Sr4—O43	109.3 (3)	Te4—O43—Sr4	103.3 (4)
O41ⁱⁱⁱ—Sr4—O43	75.2 (3)	Sr2—O43—Sr4	98.8 (3)
O63—Sr4—O43	77.3 (3)	Sr3—O43—Sr4	106.0 (3)
O23—Sr4—O43	115.5 (3)	Te5—O51—Sr2	108.3 (4)
O22^vi—Sr4—O21	79.6 (3)	Te5—O51—Sr5	127.3 (4)
O41ⁱⁱⁱ—Sr4—O21	108.9 (3)	Sr2—O51—Sr5	98.1 (3)
O63—Sr4—O21	93.5 (3)	Te5—O51—Sr3ⁱⁱⁱ	108.8 (4)
O23—Sr4—O21	61.9 (3)	Sr2—O51—Sr3ⁱⁱⁱ	102.0 (3)
O43—Sr4—O21	170.8 (3)	Sr5—O51—Sr3ⁱⁱⁱ	109.0 (3)
O22^vi—Sr4—O42	74.7 (4)	Te5—O52—Sr2^x	144.4 (6)
O41ⁱⁱⁱ—Sr4—O42	116.0 (3)	Te5—O52—Sr2	96.2 (4)
O63—Sr4—O42	96.9 (3)	Sr2^x—O52—Sr2	119.2 (4)
O23—Sr4—O42	67.4 (3)	Te5—O53—Sr2ⁱⁱⁱ	132.5 (5)
O43—Sr4—O42	58.3 (3)	Te5—O53—Sr5ⁱⁱⁱ	132.3 (5)
O21—Sr4—O42	124.2 (3)	Sr2ⁱⁱⁱ—O53—Sr5ⁱⁱⁱ	95.2 (3)
O22^vi—Sr4—O62	128.2 (3)	Te5—O53—Sr3ⁱⁱⁱ	92.2 (4)
O41ⁱⁱⁱ—Sr4—O62	69.2 (3)	Sr2ⁱⁱⁱ—O53—Sr3ⁱⁱⁱ	90.6 (3)
O63—Sr4—O62	62.0 (3)	Sr5ⁱⁱⁱ—O53—Sr3ⁱⁱⁱ	87.6 (3)
O23—Sr4—O62	113.1 (3)	Te6—O61—Sr5	117.5 (4)
O43—Sr4—O62	104.8 (3)	Te6—O61—Sr3	100.3 (3)
O21—Sr4—O62	70.0 (3)	Sr5—O61—Sr3	99.7 (3)
O42—Sr4—O62	156.8 (3)	Te6—O61—Sr2	146.2 (4)
O13^vii—Sr5—O51	78.6 (3)	Sr5—O61—Sr2	89.8 (2)
O13^vii—Sr5—O61	143.6 (3)	Sr3—O61—Sr2	93.7 (3)
O51—Sr5—O61	68.2 (3)	Te6—O62—Sr3ⁱⁱⁱ	106.1 (4)
O13^vii—Sr5—O11	87.8 (3)	Te6—O62—Sr1ⁱ	133.1 (4)
O51—Sr5—O11	129.0 (3)	Sr3ⁱⁱⁱ—O62—Sr1ⁱ	107.8 (4)
O61—Sr5—O11	124.6 (2)	Te6—O62—Sr4	92.0 (4)
O13^vii—Sr5—O33ⁱⁱⁱ	120.7 (3)	Sr3ⁱⁱⁱ—O62—Sr4	113.9 (3)
O51—Sr5—O33ⁱⁱⁱ	77.2 (3)	Sr1ⁱ—O62—Sr4	102.7 (3)
O61—Sr5—O33ⁱⁱⁱ	66.8 (3)	Te6—O63—Sr1ⁱⁱ	146.8 (5)
O11—Sr5—O33ⁱⁱⁱ	68.3 (3)	Te6—O63—Sr4	99.3 (4)
O13^vii—Sr5—O53^v	89.1 (3)	Sr1ⁱⁱ—O63—Sr4	105.7 (4)
O51—Sr5—O53^v	76.5 (3)	Te6—O63—Sr3	92.5 (4)
O61—Sr5—O53^v	69.3 (3)	Sr1ⁱⁱ—O63—Sr3	103.7 (3)
O11—Sr5—O53^v	152.8 (3)	Sr4—O63—Sr3	101.1 (3)
O33ⁱⁱⁱ—Sr5—O53^v	134.6 (3)

Symmetry codes: (i) −x+1/2, y+1/2, −z+1; (ii) −x+1/2, y−1/2, −z+1; (iii) x, y+1, z; (iv) −x+1/2, y−1/2, −z; (v) x, y−1, z; (vi) −x+1, y, −z+1; (vii) −x, y, −z; (viii) −x, y−1, −z; (ix) −x+1, y+1, −z+1; (x) −x+1/2, y+1/2, −z.

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