A new one-dimensional strontium vanadium tellurite, Sr₇V₄Te₁₂O₄₁

Vanadium tellurites display a rich structural chemistry with inter­esting physical properties, such as second harmonic generation (SHG). Tellurites, i.e. Te⁴⁺O_x, are often observed in unusual structures and form various structural motifs, including isolated clusters, chains, layers, and three-dimensional networks. Similarly, vanadates, i.e. V⁵⁺O_x, show rich structural features, such as VO₄ tetra­hedra, VO₅ square pyramids or trigonal bipyramids, and VO₆ octa­hedra. Strontium vanadium tellurite, Sr₇V₄Te₁₂O₄₁, was obtained from the melt of the solid-state reaction of SrTeO₄ and VO₂ in a sealed quartz tube as it cooled from 973 K. The crystal structure exhibits a one-dimensional latticework along the a axis comprised of paired Sr₃Te₃O_x units, namely Sr₆Te₆O_2x+1, with corner-shared TeO₄ polyhedra - and specifically the Te lone-pair electrons - facing outward in the bc plane. The Sr₆Te₆O_2x+1 latticework is helical and is layered in the b-axis direction against sheets of corner-shared VO₄ tetra­hedra, and is linked in the c-axis direction via individual corner-shared SrO₈ square prisms.

Computing details

Data collection: APEX2 (Bruker, 2012); cell refinement: SAINT (Bruker, 2012); data reduction: SAINT (Bruker, 2012); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Heptastrontium tetravanadium dodecatelluride hentetracontaoxide

Crystal data

Sr7V4Te12O41	Z = 1
Mr = 3004.30	F(000) = 1310
Triclinic, P1	Dx = 4.975 Mg m^−3
a = 7.1772 (5) Å	Mo Kα radiation, λ = 0.71073 Å
b = 9.9314 (6) Å	Cell parameters from 4967 reflections
c = 14.4116 (9) Å	θ = 2.4–33.2°
α = 96.7621 (12)°	µ = 18.80 mm^−1
β = 91.9467 (12)°	T = 100 K
γ = 100.1115 (12)°	Lathe, orange
V = 1002.69 (11) Å^3	0.30 × 0.22 × 0.05 mm

Data collection

Bruker SMART APEX CCD diffractometer	4972 reflections with I > 2σ(I)
φ and ω scans	Rint = 0.035
Absorption correction: numerical (SADABS; Bruker, 2001)	θmax = 29.1°, θmin = 1.4°
Tmin = 0.102, Tmax = 0.435	h = −9→9
12141 measured reflections	k = −13→13
5374 independent reflections	l = −19→19

Refinement

Refinement on F^2	292 parameters
Least-squares matrix: full	0 restraints
R[F^2 > 2σ(F^2)] = 0.033	w = 1/[σ^2(Fo^2) + (0.0402P)^2 + 1.8895P] where P = (Fo^2 + 2Fc^2)/3
wR(F^2) = 0.085	(Δ/σ)max = 0.002
S = 1.07	Δρmax = 2.54 e Å^−3
5374 reflections	Δρmin = −2.23 e Å^−3

Special details

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 (Ų)

	x	y	z	Uiso*/Ueq
Sr1	0.5000	0.5000	0.5000	0.00890 (15)
Sr2	0.40181 (7)	0.46751 (5)	0.76261 (4)	0.00646 (11)
Sr3	0.22803 (7)	0.40672 (5)	1.02026 (4)	0.00612 (11)
Sr4	0.13688 (7)	0.74431 (5)	1.19649 (4)	0.00693 (11)
V1	0.95910 (14)	0.97151 (10)	0.61798 (7)	0.00795 (18)
V2	0.78006 (13)	0.90768 (10)	0.89200 (7)	0.00752 (19)
Te1	0.47848 (5)	0.81869 (4)	0.66321 (3)	0.00803 (9)
Te2	0.49308 (5)	0.18067 (4)	0.59728 (3)	0.00816 (9)
Te3	0.34152 (5)	0.13349 (4)	0.84899 (3)	0.00711 (9)
Te4	0.30609 (5)	0.73764 (4)	0.95387 (2)	0.00616 (9)
Te5	0.05794 (5)	0.37209 (4)	1.24870 (2)	0.00620 (9)
Te6	0.03882 (5)	0.64012 (4)	1.44338 (2)	0.00701 (9)
O1	1.0000	1.0000	0.5000	0.0306 (18)
O2	1.0613 (7)	0.8458 (5)	0.6430 (4)	0.0215 (10)
O3	1.0532 (6)	1.1094 (5)	0.6900 (3)	0.0204 (10)
O4	0.7057 (6)	0.9329 (5)	0.6335 (3)	0.0165 (9)
O5	0.9014 (6)	0.7703 (4)	0.8547 (3)	0.0111 (8)
O6	0.7092 (6)	0.8725 (5)	1.0011 (3)	0.0151 (9)
O7	0.9162 (6)	1.0595 (4)	0.8927 (3)	0.0180 (9)
O8	0.5841 (6)	0.8955 (5)	0.8202 (3)	0.0185 (9)
O9	0.4044 (6)	0.7673 (5)	0.5320 (3)	0.0143 (9)
O10	0.5571 (6)	0.6538 (4)	0.6717 (3)	0.0127 (8)
O11	0.3731 (6)	0.3294 (4)	0.6017 (3)	0.0112 (8)
O12	0.4869 (6)	0.1896 (4)	0.7382 (3)	0.0112 (8)
O13	0.2317 (5)	0.2902 (4)	0.8567 (3)	0.0070 (7)
O14	0.4422 (5)	0.5954 (4)	0.9317 (3)	0.0068 (7)
O15	0.1777 (5)	0.6334 (4)	0.8155 (3)	0.0106 (8)
O16	0.1120 (5)	0.6398 (4)	1.0138 (3)	0.0079 (7)
O17	0.4183 (5)	0.7823 (4)	1.0918 (3)	0.0092 (8)
O18	0.2163 (6)	0.5042 (4)	1.1923 (3)	0.0101 (8)
O19	0.2516 (6)	0.7260 (4)	1.3663 (3)	0.0116 (8)
O20	0.0656 (5)	0.4488 (4)	0.6735 (3)	0.0083 (7)
O21	0.1663 (6)	0.4991 (4)	0.4734 (3)	0.0109 (8)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Sr1	0.0045 (3)	0.0152 (4)	0.0080 (4)	0.0025 (3)	0.0003 (3)	0.0045 (3)
Sr2	0.0046 (2)	0.0100 (2)	0.0051 (2)	0.00160 (18)	0.00038 (17)	0.00173 (18)
Sr3	0.0030 (2)	0.0107 (2)	0.0050 (2)	0.00185 (17)	−0.00041 (17)	0.00147 (18)
Sr4	0.0040 (2)	0.0110 (2)	0.0062 (2)	0.00231 (18)	−0.00039 (18)	0.00147 (19)
V1	0.0063 (4)	0.0108 (4)	0.0065 (5)	0.0009 (3)	0.0009 (3)	0.0011 (3)
V2	0.0051 (4)	0.0104 (4)	0.0075 (5)	0.0024 (3)	−0.0001 (3)	0.0017 (4)
Te1	0.00529 (16)	0.01079 (17)	0.00840 (18)	0.00228 (13)	−0.00036 (13)	0.00180 (13)
Te2	0.00470 (16)	0.01073 (17)	0.00916 (18)	0.00179 (13)	−0.00106 (13)	0.00153 (13)
Te3	0.00410 (16)	0.00919 (17)	0.00806 (18)	0.00169 (13)	−0.00129 (13)	0.00085 (13)
Te4	0.00366 (16)	0.00928 (17)	0.00600 (18)	0.00200 (12)	0.00014 (13)	0.00160 (13)
Te5	0.00373 (16)	0.01011 (17)	0.00516 (17)	0.00190 (12)	−0.00060 (12)	0.00192 (13)
Te6	0.00472 (16)	0.01094 (17)	0.00544 (17)	0.00183 (13)	−0.00066 (12)	0.00098 (13)
O1	0.025 (4)	0.057 (5)	0.012 (3)	0.007 (4)	0.002 (3)	0.010 (3)
O2	0.018 (2)	0.021 (2)	0.030 (3)	0.0076 (19)	0.007 (2)	0.014 (2)
O3	0.007 (2)	0.024 (2)	0.026 (3)	0.0012 (17)	−0.0005 (18)	−0.012 (2)
O4	0.0075 (19)	0.021 (2)	0.022 (2)	0.0001 (17)	0.0012 (17)	0.0105 (19)
O5	0.0095 (19)	0.017 (2)	0.008 (2)	0.0070 (16)	0.0013 (15)	0.0000 (16)
O6	0.011 (2)	0.020 (2)	0.014 (2)	0.0037 (17)	0.0041 (16)	0.0002 (17)
O7	0.013 (2)	0.015 (2)	0.026 (3)	0.0009 (17)	0.0015 (18)	0.0071 (19)
O8	0.011 (2)	0.028 (2)	0.019 (2)	0.0089 (18)	−0.0038 (18)	0.0056 (19)
O9	0.016 (2)	0.022 (2)	0.0036 (19)	0.0029 (18)	−0.0001 (16)	−0.0012 (16)
O10	0.011 (2)	0.013 (2)	0.015 (2)	0.0039 (16)	0.0040 (16)	0.0059 (17)
O11	0.0111 (19)	0.0118 (19)	0.013 (2)	0.0073 (16)	0.0006 (16)	0.0016 (16)
O12	0.0094 (19)	0.020 (2)	0.0036 (19)	0.0012 (16)	0.0002 (15)	0.0020 (16)
O13	0.0050 (17)	0.0091 (18)	0.0073 (19)	0.0021 (14)	−0.0015 (14)	0.0013 (14)
O14	0.0063 (18)	0.0094 (18)	0.0051 (18)	0.0033 (14)	−0.0005 (14)	0.0003 (14)
O15	0.0048 (17)	0.0150 (19)	0.012 (2)	0.0049 (15)	−0.0029 (15)	−0.0015 (16)
O16	0.0042 (17)	0.0115 (19)	0.0081 (19)	0.0008 (14)	0.0015 (14)	0.0027 (15)
O17	0.0017 (17)	0.0142 (19)	0.010 (2)	−0.0011 (14)	−0.0010 (14)	−0.0002 (15)
O18	0.0063 (18)	0.0145 (19)	0.009 (2)	0.0008 (15)	0.0023 (15)	0.0019 (16)
O19	0.0066 (18)	0.022 (2)	0.0049 (19)	−0.0032 (16)	0.0008 (14)	0.0041 (16)
O20	0.0060 (18)	0.0116 (18)	0.0066 (19)	0.0029 (14)	−0.0004 (14)	−0.0031 (15)
O21	0.0070 (18)	0.0121 (19)	0.015 (2)	0.0039 (15)	0.0016 (15)	0.0046 (16)

Geometric parameters (Å, º)

Sr1—O21^i	2.411 (4)	V2—Sr3^ii	3.4961 (10)
Sr1—O21	2.411 (4)	V2—Sr4^iv	3.7807 (10)
Sr1—O11^i	2.446 (4)	Te1—O10	1.839 (4)
Sr1—O11	2.446 (4)	Te1—O4	1.908 (4)
Sr1—O10	2.728 (4)	Te1—O9	1.931 (4)
Sr1—O10^i	2.728 (4)	Te1—O8	2.356 (5)
Sr1—O9^i	2.847 (4)	Te2—O11	1.832 (4)
Sr1—O9	2.847 (4)	Te2—O19^ii	1.927 (4)
Sr1—Te2	3.6086 (4)	Te2—O12	2.024 (4)
Sr1—Te2^i	3.6086 (4)	Te2—O9^i	2.113 (4)
Sr1—Te1^i	3.7439 (4)	Te2—Sr4^ii	3.8327 (6)
Sr1—Te1	3.7439 (4)	Te3—O13	1.858 (4)
Sr2—O10	2.516 (4)	Te3—O17^ii	1.904 (4)
Sr2—O13	2.520 (4)	Te3—O12	2.017 (4)
Sr2—O11	2.534 (4)	Te3—O6^ii	2.209 (4)
Sr2—O15	2.569 (4)	Te3—Sr4^ii	3.8309 (7)
Sr2—O14	2.594 (4)	Te3—Sr4^iii	3.8974 (6)
Sr2—O20	2.662 (4)	Te4—O16	1.853 (4)
Sr2—O18^ii	2.753 (4)	Te4—O14	1.858 (4)
Sr2—O12	2.914 (4)	Te4—O17	2.087 (4)
Sr2—Te3	3.6395 (6)	Te4—O15	2.225 (4)
Sr2—Te2	3.6585 (7)	Te4—Sr3^ii	3.8858 (6)
Sr2—Te4	3.7818 (6)	Te4—Sr3^iii	3.8965 (7)
Sr2—Te1	3.8827 (6)	Te5—O18	1.861 (4)
Sr3—O16^iii	2.425 (4)	Te5—O15^iii	1.889 (4)
Sr3—O14^ii	2.448 (4)	Te5—O5^ii	1.995 (4)
Sr3—O13	2.503 (4)	Te5—O20^iii	2.315 (4)
Sr3—O18	2.563 (4)	Te5—Sr2^iii	3.9145 (6)
Sr3—O16	2.605 (4)	Te5—Sr2^ii	3.9414 (7)
Sr3—O14	2.680 (4)	Te6—O20^iii	1.873 (4)
Sr3—O5^ii	2.736 (4)	Te6—O21^v	1.885 (4)
Sr3—O6^ii	2.870 (4)	Te6—O19	2.043 (4)
Sr3—Te4	3.4873 (6)	Te6—O21^iii	2.305 (4)
Sr3—V2^ii	3.4961 (10)	Te6—Sr1^v	3.9064 (4)
Sr3—Te5	3.5832 (7)	Te6—Sr1^vi	4.0187 (4)
Sr3—Te3	3.6680 (6)	O1—V1^vii	1.7819 (10)
Sr4—O7^iv	2.532 (4)	O3—Sr4^iv	2.634 (4)
Sr4—O18	2.542 (4)	O5—Te5^ii	1.995 (4)
Sr4—O17	2.563 (4)	O5—Sr3^ii	2.736 (4)
Sr4—O19	2.593 (4)	O6—Te3^ii	2.209 (4)
Sr4—O3^iv	2.634 (4)	O6—Sr3^ii	2.870 (4)
Sr4—O13^iii	2.681 (4)	O7—Sr4^iv	2.532 (4)
Sr4—O16	2.701 (4)	O9—Te2^i	2.113 (4)
Sr4—O12^ii	2.769 (4)	O12—Sr4^ii	2.769 (4)
Sr4—O20^iii	3.059 (4)	O13—Sr4^iii	2.681 (4)
Sr4—Te4	3.7372 (7)	O14—Sr3^ii	2.448 (4)
Sr4—V2^iv	3.7806 (10)	O15—Te5^iii	1.889 (4)
Sr4—Te5	3.8081 (6)	O16—Sr3^iii	2.425 (4)
V1—O2	1.624 (4)	O17—Te3^ii	1.904 (4)
V1—O3	1.644 (5)	O18—Sr2^ii	2.753 (4)
V1—O1	1.7819 (10)	O19—Te2^ii	1.927 (4)
V1—O4	1.819 (4)	O20—Te6^iii	1.873 (4)
V1—Sr4^iv	3.8236 (11)	O20—Te5^iii	2.315 (4)
V2—O7	1.645 (4)	O20—Sr4^iii	3.059 (4)
V2—O8	1.696 (4)	O21—Te6^viii	1.885 (4)
V2—O6	1.724 (4)	O21—Te6^iii	2.305 (4)
V2—O5	1.785 (4)
O21^i—Sr1—O21	180.0	O7^iv—Sr4—Te5	155.23 (11)
O21^i—Sr1—O11^i	80.68 (13)	O18—Sr4—Te5	25.32 (9)
O21—Sr1—O11^i	99.32 (13)	O17—Sr4—Te5	108.50 (9)
O21^i—Sr1—O11	99.32 (13)	O19—Sr4—Te5	68.18 (10)
O21—Sr1—O11	80.68 (13)	O3^iv—Sr4—Te5	110.15 (11)
O11^i—Sr1—O11	180.0	O13^iii—Sr4—Te5	88.95 (8)
O21^i—Sr1—O10	81.06 (14)	O16—Sr4—Te5	86.45 (8)
O21—Sr1—O10	98.94 (14)	O12^ii—Sr4—Te5	96.14 (9)
O11^i—Sr1—O10	101.38 (13)	O20^iii—Sr4—Te5	37.44 (7)
O11—Sr1—O10	78.62 (13)	Te4—Sr4—Te5	105.934 (15)
O21^i—Sr1—O10^i	98.94 (14)	V2^iv—Sr4—Te5	171.65 (2)
O21—Sr1—O10^i	81.06 (14)	O2—V1—O3	107.7 (3)
O11^i—Sr1—O10^i	78.62 (13)	O2—V1—O1	109.08 (18)
O11—Sr1—O10^i	101.38 (13)	O3—V1—O1	110.25 (19)
O10—Sr1—O10^i	180.00 (17)	O2—V1—O4	111.0 (2)
O21^i—Sr1—O9^i	66.77 (13)	O3—V1—O4	108.9 (2)
O21—Sr1—O9^i	113.23 (13)	O1—V1—O4	109.93 (15)
O11^i—Sr1—O9^i	118.26 (13)	O2—V1—Sr4^iv	122.83 (19)
O11—Sr1—O9^i	61.74 (13)	O3—V1—Sr4^iv	34.29 (15)
O10—Sr1—O9^i	121.87 (11)	O1—V1—Sr4^iv	122.41 (4)
O10^i—Sr1—O9^i	58.13 (11)	O4—V1—Sr4^iv	74.65 (16)
O21^i—Sr1—O9	113.23 (13)	O7—V2—O8	110.0 (2)
O21—Sr1—O9	66.77 (13)	O7—V2—O6	113.8 (2)
O11^i—Sr1—O9	61.74 (13)	O8—V2—O6	108.5 (2)
O11—Sr1—O9	118.25 (13)	O7—V2—O5	111.9 (2)
O10—Sr1—O9	58.13 (11)	O8—V2—O5	109.1 (2)
O10^i—Sr1—O9	121.87 (11)	O6—V2—O5	103.3 (2)
O9^i—Sr1—O9	180.0	O7—V2—Sr3^ii	140.91 (16)
O21^i—Sr1—Te2	78.40 (9)	O8—V2—Sr3^ii	108.96 (17)
O21—Sr1—Te2	101.61 (9)	O6—V2—Sr3^ii	54.74 (15)
O11^i—Sr1—Te2	152.44 (9)	O5—V2—Sr3^ii	50.60 (14)
O11—Sr1—Te2	27.56 (9)	O7—V2—Sr4^iv	31.64 (15)
O10—Sr1—Te2	92.89 (8)	O8—V2—Sr4^iv	78.36 (16)
O10^i—Sr1—Te2	87.11 (8)	O6—V2—Sr4^iv	126.92 (15)
O9^i—Sr1—Te2	35.81 (8)	O5—V2—Sr4^iv	124.62 (14)
O9—Sr1—Te2	144.19 (8)	Sr3^ii—V2—Sr4^iv	171.98 (3)
O21^i—Sr1—Te2^i	101.61 (9)	O10—Te1—O4	102.01 (18)
O21—Sr1—Te2^i	78.39 (9)	O10—Te1—O9	91.89 (19)
O11^i—Sr1—Te2^i	27.56 (9)	O4—Te1—O9	90.95 (19)
O11—Sr1—Te2^i	152.44 (9)	O10—Te1—O8	90.32 (17)
O10—Sr1—Te2^i	87.11 (8)	O4—Te1—O8	85.07 (18)
O10^i—Sr1—Te2^i	92.89 (8)	O9—Te1—O8	175.77 (18)
O9^i—Sr1—Te2^i	144.19 (8)	O10—Te1—Sr1	43.71 (14)
O9—Sr1—Te2^i	35.81 (8)	O4—Te1—Sr1	99.42 (15)
Te2—Sr1—Te2^i	179.999 (11)	O9—Te1—Sr1	48.18 (13)
O21^i—Sr1—Te1^i	82.96 (10)	O8—Te1—Sr1	133.90 (11)
O21—Sr1—Te1^i	97.04 (10)	O10—Te1—Sr2	31.86 (13)
O11^i—Sr1—Te1^i	98.24 (10)	O4—Te1—Sr2	130.50 (12)
O11—Sr1—Te1^i	81.76 (10)	O9—Te1—Sr2	103.20 (13)
O10—Sr1—Te1^i	152.24 (8)	O8—Te1—Sr2	80.52 (11)
O10^i—Sr1—Te1^i	27.76 (8)	Sr1—Te1—Sr2	61.710 (10)
O9^i—Sr1—Te1^i	30.37 (8)	O11—Te2—O19^ii	99.75 (19)
O9—Sr1—Te1^i	149.63 (8)	O11—Te2—O12	89.56 (18)
Te2—Sr1—Te1^i	61.611 (9)	O19^ii—Te2—O12	79.78 (17)
Te2^i—Sr1—Te1^i	118.388 (9)	O11—Te2—O9^i	87.60 (18)
O21^i—Sr1—Te1	97.04 (10)	O19^ii—Te2—O9^i	78.12 (17)
O21—Sr1—Te1	82.96 (10)	O12—Te2—O9^i	156.89 (17)
O11^i—Sr1—Te1	81.76 (10)	O11—Te2—Sr1	38.16 (13)
O11—Sr1—Te1	98.24 (10)	O19^ii—Te2—Sr1	79.15 (12)
O10—Sr1—Te1	27.76 (8)	O12—Te2—Sr1	116.79 (12)
O10^i—Sr1—Te1	152.24 (8)	O9^i—Te2—Sr1	52.03 (12)
O9^i—Sr1—Te1	149.63 (8)	O11—Te2—Sr2	39.66 (13)
O9—Sr1—Te1	30.37 (8)	O19^ii—Te2—Sr2	79.32 (13)
Te2—Sr1—Te1	118.389 (9)	O12—Te2—Sr2	52.63 (12)
Te2^i—Sr1—Te1	61.612 (9)	O9^i—Te2—Sr2	115.92 (12)
Te1^i—Sr1—Te1	180.0	Sr1—Te2—Sr2	65.157 (11)
O10—Sr2—O13	176.48 (13)	O11—Te2—Sr4^ii	106.68 (13)
O10—Sr2—O11	81.17 (14)	O19^ii—Te2—Sr4^ii	37.75 (12)
O13—Sr2—O11	100.68 (13)	O12—Te2—Sr4^ii	44.22 (12)
O10—Sr2—O15	86.05 (13)	O9^i—Te2—Sr4^ii	115.27 (12)
O13—Sr2—O15	90.43 (13)	Sr1—Te2—Sr4^ii	106.909 (12)
O11—Sr2—O15	123.27 (12)	Sr2—Te2—Sr4^ii	69.689 (13)
O10—Sr2—O14	101.30 (13)	O13—Te3—O17^ii	97.62 (17)
O13—Sr2—O14	77.02 (13)	O13—Te3—O12	91.57 (17)
O11—Sr2—O14	175.95 (12)	O17^ii—Te3—O12	78.79 (17)
O15—Sr2—O14	60.35 (12)	O13—Te3—O6^ii	87.34 (16)
O10—Sr2—O20	92.89 (13)	O17^ii—Te3—O6^ii	77.45 (17)
O13—Sr2—O20	85.16 (12)	O12—Te3—O6^ii	155.86 (17)
O11—Sr2—O20	66.53 (12)	O13—Te3—Sr2	40.09 (12)
O15—Sr2—O20	59.21 (12)	O17^ii—Te3—Sr2	79.69 (12)
O14—Sr2—O20	116.31 (12)	O12—Te3—Sr2	53.07 (12)
O10—Sr2—O18^ii	75.12 (13)	O6^ii—Te3—Sr2	117.63 (12)
O13—Sr2—O18^ii	107.29 (12)	O13—Te3—Sr3	38.68 (12)
O11—Sr2—O18^ii	101.44 (13)	O17^ii—Te3—Sr3	76.49 (12)
O15—Sr2—O18^ii	127.96 (13)	O12—Te3—Sr3	118.06 (12)
O14—Sr2—O18^ii	76.26 (12)	O6^ii—Te3—Sr3	51.45 (11)
O20—Sr2—O18^ii	164.55 (12)	Sr2—Te3—Sr3	67.039 (14)
O10—Sr2—O12	122.42 (13)	O13—Te3—Sr4^ii	105.63 (12)
O13—Sr2—O12	61.01 (12)	O17^ii—Te3—Sr4^ii	36.46 (12)
O11—Sr2—O12	59.40 (12)	O12—Te3—Sr4^ii	44.21 (11)
O15—Sr2—O12	149.85 (13)	O6^ii—Te3—Sr4^ii	113.18 (11)
O14—Sr2—O12	116.59 (11)	Sr2—Te3—Sr4^ii	69.902 (12)
O20—Sr2—O12	105.60 (12)	Sr3—Te3—Sr4^ii	104.250 (14)
O18^ii—Sr2—O12	74.01 (12)	O13—Te3—Sr4^iii	37.72 (12)
O10—Sr2—Te3	155.19 (10)	O17^ii—Te3—Sr4^iii	135.00 (12)
O13—Sr2—Te3	28.34 (9)	O12—Te3—Sr4^iii	102.03 (11)
O11—Sr2—Te3	85.03 (9)	O6^ii—Te3—Sr4^iii	91.77 (11)
O15—Sr2—Te3	118.75 (10)	Sr2—Te3—Sr4^iii	66.914 (13)
O14—Sr2—Te3	91.51 (8)	Sr3—Te3—Sr4^iii	63.368 (12)
O20—Sr2—Te3	100.41 (9)	Sr4^ii—Te3—Sr4^iii	136.463 (17)
O18^ii—Sr2—Te3	87.63 (8)	O16—Te4—O14	96.32 (17)
O12—Sr2—Te3	33.59 (8)	O16—Te4—O17	80.12 (16)
O10—Sr2—Te2	95.45 (10)	O14—Te4—O17	90.90 (16)
O13—Sr2—Te2	87.46 (9)	O16—Te4—O15	90.48 (17)
O11—Sr2—Te2	27.47 (8)	O14—Te4—O15	78.38 (15)
O15—Sr2—Te2	148.17 (9)	O17—Te4—O15	164.94 (15)
O14—Sr2—Te2	148.50 (8)	O16—Te4—Sr3	47.03 (12)
O20—Sr2—Te2	88.98 (8)	O14—Te4—Sr3	49.42 (12)
O18^ii—Sr2—Te2	82.64 (9)	O17—Te4—Sr3	80.25 (11)
O12—Sr2—Te2	33.51 (8)	O15—Te4—Sr3	84.73 (11)
Te3—Sr2—Te2	64.226 (12)	O16—Te4—Sr4	43.17 (13)
O10—Sr2—Te4	90.23 (10)	O14—Te4—Sr4	108.93 (12)
O13—Sr2—Te4	86.97 (9)	O17—Te4—Sr4	41.11 (11)
O11—Sr2—Te4	157.54 (9)	O15—Te4—Sr4	132.93 (11)
O15—Sr2—Te4	34.84 (9)	Sr3—Te4—Sr4	69.495 (13)
O14—Sr2—Te4	26.37 (8)	O16—Te4—Sr2	102.06 (13)
O20—Sr2—Te4	93.45 (8)	O14—Te4—Sr2	38.34 (12)
O18^ii—Sr2—Te4	96.25 (9)	O17—Te4—Sr2	129.22 (11)
O12—Sr2—Te4	140.26 (8)	O15—Te4—Sr2	41.26 (10)
Te3—Sr2—Te4	109.590 (16)	Sr3—Te4—Sr2	67.302 (14)
Te2—Sr2—Te4	173.712 (17)	Sr4—Te4—Sr2	136.777 (15)
O10—Sr2—Te1	22.70 (9)	O16—Te4—Sr3^ii	111.30 (11)
O13—Sr2—Te1	153.77 (9)	O14—Te4—Sr3^ii	29.56 (12)
O11—Sr2—Te1	93.28 (9)	O17—Te4—Sr3^ii	69.66 (11)
O15—Sr2—Te1	63.39 (10)	O15—Te4—Sr3^ii	103.50 (10)
O14—Sr2—Te1	90.12 (8)	Sr3—Te4—Sr3^ii	67.490 (15)
O20—Sr2—Te1	80.18 (9)	Sr4—Te4—Sr3^ii	101.886 (13)
O18^ii—Sr2—Te1	91.31 (8)	Sr2—Te4—Sr3^ii	62.345 (12)
O12—Sr2—Te1	144.20 (8)	O16—Te4—Sr3^iii	28.12 (12)
Te3—Sr2—Te1	177.792 (18)	O14—Te4—Sr3^iii	110.94 (12)
Te2—Sr2—Te1	113.715 (16)	O17—Te4—Sr3^iii	103.62 (11)
Te4—Sr2—Te1	72.450 (13)	O15—Te4—Sr3^iii	71.13 (11)
O16^iii—Sr3—O14^ii	167.32 (13)	Sr3—Te4—Sr3^iii	67.039 (14)
O16^iii—Sr3—O13	82.95 (13)	Sr4—Te4—Sr3^iii	62.779 (12)
O14^ii—Sr3—O13	97.37 (12)	Sr2—Te4—Sr3^iii	98.440 (14)
O16^iii—Sr3—O18	96.07 (13)	Sr3^ii—Te4—Sr3^iii	134.511 (17)
O14^ii—Sr3—O18	82.46 (13)	O18—Te5—O15^iii	101.74 (18)
O13—Sr3—O18	174.80 (13)	O18—Te5—O5^ii	89.04 (18)
O16^iii—Sr3—O16	71.16 (14)	O15^iii—Te5—O5^ii	85.35 (17)
O14^ii—Sr3—O16	120.23 (12)	O18—Te5—O20^iii	87.43 (16)
O13—Sr3—O16	108.79 (12)	O15^iii—Te5—O20^iii	75.14 (16)
O18—Sr3—O16	75.59 (13)	O5^ii—Te5—O20^iii	159.00 (15)
O16^iii—Sr3—O14	118.53 (12)	O18—Te5—Sr3	43.14 (13)
O14^ii—Sr3—O14	73.58 (13)	O15^iii—Te5—Sr3	82.01 (13)
O13—Sr3—O14	75.74 (12)	O5^ii—Te5—Sr3	49.25 (12)
O18—Sr3—O14	109.09 (12)	O20^iii—Te5—Sr3	118.77 (10)
O16—Sr3—O14	63.07 (12)	O18—Te5—Sr4	35.75 (12)
O16^iii—Sr3—O5^ii	76.96 (12)	O15^iii—Te5—Sr4	81.92 (13)
O14^ii—Sr3—O5^ii	91.41 (12)	O5^ii—Te5—Sr4	116.83 (12)
O13—Sr3—O5^ii	113.55 (13)	O20^iii—Te5—Sr4	53.43 (10)
O18—Sr3—O5^ii	61.29 (13)	Sr3—Te5—Sr4	67.727 (13)
O16—Sr3—O5^ii	122.26 (12)	O18—Te5—Sr2^iii	97.83 (12)
O14—Sr3—O5^ii	163.61 (12)	O15^iii—Te5—Sr2^iii	33.80 (12)
O16^iii—Sr3—O6^ii	98.37 (13)	O5^ii—Te5—Sr2^iii	118.98 (11)
O14^ii—Sr3—O6^ii	70.85 (13)	O20^iii—Te5—Sr2^iii	41.39 (10)
O13—Sr3—O6^ii	62.87 (12)	Sr3—Te5—Sr2^iii	101.615 (14)
O18—Sr3—O6^ii	112.35 (13)	Sr4—Te5—Sr2^iii	65.184 (12)
O16—Sr3—O6^ii	167.92 (13)	O18—Te5—Sr2^ii	38.88 (12)
O14—Sr3—O6^ii	119.81 (12)	O15^iii—Te5—Sr2^ii	139.95 (13)
O5^ii—Sr3—O6^ii	58.74 (12)	O5^ii—Te5—Sr2^ii	86.71 (12)
O16^iii—Sr3—Te4	96.08 (9)	O20^iii—Te5—Sr2^ii	103.16 (10)
O14^ii—Sr3—Te4	96.55 (9)	Sr3—Te5—Sr2^ii	63.475 (12)
O13—Sr3—Te4	94.00 (9)	Sr4—Te5—Sr2^ii	67.069 (12)
O18—Sr3—Te4	91.19 (9)	Sr2^iii—Te5—Sr2^ii	132.019 (17)
O16—Sr3—Te4	31.37 (9)	O20^iii—Te6—O21^v	96.34 (18)
O14—Sr3—Te4	31.77 (8)	O20^iii—Te6—O19	83.49 (17)
O5^ii—Sr3—Te4	150.10 (9)	O21^v—Te6—O19	93.79 (17)
O6^ii—Sr3—Te4	150.70 (9)	O20^iii—Te6—O21^iii	94.09 (17)
O16^iii—Sr3—V2^ii	92.61 (9)	O21^v—Te6—O21^iii	73.67 (18)
O14^ii—Sr3—V2^ii	74.71 (9)	O19—Te6—O21^iii	166.95 (16)
O13—Sr3—V2^ii	90.43 (9)	O20^iii—Te6—Sr4	50.86 (12)
O18—Sr3—V2^ii	84.51 (9)	O21^v—Te6—Sr4	113.22 (13)
O16—Sr3—V2^ii	152.45 (9)	O19—Te6—Sr4	38.09 (11)
O14—Sr3—V2^ii	143.24 (8)	O21^iii—Te6—Sr4	144.03 (11)
O5^ii—Sr3—V2^ii	30.28 (8)	O20^iii—Te6—Sr1^v	108.12 (11)
O6^ii—Sr3—V2^ii	29.38 (9)	O21^v—Te6—Sr1^v	28.01 (13)
Te4—Sr3—V2^ii	170.67 (2)	O19—Te6—Sr1^v	70.55 (11)
O16^iii—Sr3—Te5	78.81 (9)	O21^iii—Te6—Sr1^v	98.26 (9)
O14^ii—Sr3—Te5	94.36 (9)	Sr4—Te6—Sr1^v	100.452 (11)
O13—Sr3—Te5	145.44 (9)	O20^iii—Te6—Sr1^vi	77.90 (12)
O18—Sr3—Te5	29.76 (9)	O21^v—Te6—Sr1^vi	103.17 (13)
O16—Sr3—Te5	92.77 (9)	O19—Te6—Sr1^vi	155.98 (11)
O14—Sr3—Te5	138.82 (8)	O21^iii—Te6—Sr1^vi	32.34 (9)
O5^ii—Sr3—Te5	33.54 (9)	Sr4—Te6—Sr1^vi	118.214 (11)
O6^ii—Sr3—Te5	90.99 (9)	Sr1^v—Te6—Sr1^vi	129.812 (10)
Te4—Sr3—Te5	116.835 (17)	V1—O1—V1^vii	180.0
V2^ii—Sr3—Te5	61.613 (18)	V1—O3—Sr4^iv	125.1 (2)
O16^iii—Sr3—Te3	97.10 (10)	V1—O4—Te1	153.8 (3)
O14^ii—Sr3—Te3	78.43 (9)	V2—O5—Te5^ii	147.1 (2)
O13—Sr3—Te3	27.63 (8)	V2—O5—Sr3^ii	99.12 (17)
O18—Sr3—Te3	148.26 (9)	Te5^ii—O5—Sr3^ii	97.21 (16)
O16—Sr3—Te3	136.10 (9)	V2—O6—Te3^ii	168.4 (3)
O14—Sr3—Te3	89.52 (8)	V2—O6—Sr3^ii	95.88 (18)
O5^ii—Sr3—Te3	93.94 (9)	Te3^ii—O6—Sr3^ii	91.53 (14)
O6^ii—Sr3—Te3	37.02 (9)	V2—O7—Sr4^iv	128.4 (2)
Te4—Sr3—Te3	115.867 (16)	V2—O8—Te1	139.4 (3)
V2^ii—Sr3—Te3	66.177 (19)	Te1—O9—Te2^i	137.3 (2)
Te5—Sr3—Te3	127.280 (17)	Te1—O9—Sr1	101.45 (16)
O7^iv—Sr4—O18	148.11 (15)	Te2^i—O9—Sr1	92.16 (15)
O7^iv—Sr4—O17	74.72 (14)	Te1—O10—Sr2	125.4 (2)
O18—Sr4—O17	83.28 (13)	Te1—O10—Sr1	108.53 (18)
O7^iv—Sr4—O19	134.83 (15)	Sr2—O10—Sr1	96.45 (14)
O18—Sr4—O19	74.52 (14)	Te2—O11—Sr1	114.28 (19)
O17—Sr4—O19	110.74 (13)	Te2—O11—Sr2	112.87 (18)
O7^iv—Sr4—O3^iv	75.97 (16)	Sr1—O11—Sr2	103.57 (15)
O18—Sr4—O3^iv	133.65 (15)	Te3—O12—Te2	147.5 (2)
O17—Sr4—O3^iv	139.03 (14)	Te3—O12—Sr4^ii	105.27 (15)
O19—Sr4—O3^iv	72.54 (14)	Te2—O12—Sr4^ii	105.12 (16)
O7^iv—Sr4—O13^iii	71.03 (13)	Te3—O12—Sr2	93.34 (15)
O18—Sr4—O13^iii	106.43 (12)	Te2—O12—Sr2	93.86 (14)
O17—Sr4—O13^iii	126.93 (12)	Sr4^ii—O12—Sr2	97.77 (13)
O19—Sr4—O13^iii	122.21 (12)	Te3—O13—Sr3	113.68 (17)
O3^iv—Sr4—O13^iii	67.00 (13)	Te3—O13—Sr2	111.57 (17)
O7^iv—Sr4—O16	74.51 (14)	Sr3—O13—Sr2	106.89 (14)
O18—Sr4—O16	74.25 (12)	Te3—O13—Sr4^iii	117.20 (17)
O17—Sr4—O16	57.68 (12)	Sr3—O13—Sr4^iii	100.19 (13)
O19—Sr4—O16	147.79 (13)	Sr2—O13—Sr4^iii	106.22 (13)
O3^iv—Sr4—O16	137.38 (13)	Te4—O14—Sr3^ii	128.45 (19)
O13^iii—Sr4—O16	74.68 (12)	Te4—O14—Sr2	115.29 (16)
O7^iv—Sr4—O12^ii	105.10 (13)	Sr3^ii—O14—Sr2	103.83 (14)
O18—Sr4—O12^ii	79.86 (13)	Te4—O14—Sr3	98.81 (16)
O17—Sr4—O12^ii	55.52 (12)	Sr3^ii—O14—Sr3	106.42 (13)
O19—Sr4—O12^ii	56.33 (12)	Sr2—O14—Sr3	99.81 (13)
O3^iv—Sr4—O12^ii	106.86 (13)	Te5^iii—O15—Te4	133.1 (2)
O13^iii—Sr4—O12^ii	173.20 (12)	Te5^iii—O15—Sr2	122.07 (19)
O16—Sr4—O12^ii	110.04 (12)	Te4—O15—Sr2	103.90 (14)
O7^iv—Sr4—O20^iii	140.58 (13)	Te4—O16—Sr3^iii	130.76 (19)
O18—Sr4—O20^iii	61.67 (12)	Te4—O16—Sr3	101.60 (16)
O17—Sr4—O20^iii	143.92 (11)	Sr3^iii—O16—Sr3	108.83 (14)
O19—Sr4—O20^iii	54.27 (12)	Te4—O16—Sr4	108.84 (17)
O3^iv—Sr4—O20^iii	72.73 (13)	Sr3^iii—O16—Sr4	101.67 (14)
O13^iii—Sr4—O20^iii	75.03 (11)	Sr3—O16—Sr4	101.95 (13)
O16—Sr4—O20^iii	115.01 (11)	Te3^ii—O17—Te4	135.2 (2)
O12^ii—Sr4—O20^iii	106.45 (11)	Te3^ii—O17—Sr4	117.34 (18)
O7^iv—Sr4—Te4	63.10 (11)	Te4—O17—Sr4	106.52 (15)
O18—Sr4—Te4	86.00 (9)	Te5—O18—Sr4	118.93 (18)
O17—Sr4—Te4	32.37 (9)	Te5—O18—Sr3	107.10 (18)
O19—Sr4—Te4	141.25 (9)	Sr4—O18—Sr3	107.71 (14)
O3^iv—Sr4—Te4	138.92 (11)	Te5—O18—Sr2^ii	116.00 (17)
O13^iii—Sr4—Te4	95.13 (8)	Sr4—O18—Sr2^ii	107.89 (14)
O16—Sr4—Te4	27.99 (8)	Sr3—O18—Sr2^ii	96.55 (13)
O12^ii—Sr4—Te4	87.82 (8)	Te2^ii—O19—Te6	131.2 (2)
O20^iii—Sr4—Te4	140.53 (8)	Te2^ii—O19—Sr4	115.18 (17)
O7^iv—Sr4—V2^iv	19.94 (10)	Te6—O19—Sr4	112.82 (17)
O18—Sr4—V2^iv	148.91 (9)	Te6^iii—O20—Te5^iii	121.29 (18)
O17—Sr4—V2^iv	65.91 (9)	Te6^iii—O20—Sr2	132.93 (18)
O19—Sr4—V2^iv	119.15 (10)	Te5^iii—O20—Sr2	103.51 (14)
O3^iv—Sr4—V2^iv	76.91 (11)	Te6^iii—O20—Sr4^iii	100.78 (15)
O13^iii—Sr4—V2^iv	89.89 (8)	Te5^iii—O20—Sr4^iii	89.14 (12)
O16—Sr4—V2^iv	85.27 (8)	Sr2—O20—Sr4^iii	93.07 (11)
O12^ii—Sr4—V2^iv	85.71 (9)	Te6^viii—O21—Te6^iii	106.33 (18)
O20^iii—Sr4—V2^iv	149.41 (7)	Te6^viii—O21—Sr1	130.4 (2)
Te4—Sr4—V2^iv	65.940 (18)	Te6^iii—O21—Sr1	116.90 (16)
O2—V1—O3—Sr4^iv	−122.9 (3)	O12—Te3—O13—Sr4^iii	107.79 (19)
O1—V1—O3—Sr4^iv	118.2 (2)	O6^ii—Te3—O13—Sr4^iii	−96.35 (19)
O4—V1—O3—Sr4^iv	−2.5 (4)	Sr2—Te3—O13—Sr4^iii	122.7 (3)
O2—V1—O4—Te1	−1.6 (7)	Sr3—Te3—O13—Sr4^iii	−116.3 (3)
O3—V1—O4—Te1	−120.0 (6)	Sr4^ii—Te3—O13—Sr4^iii	150.31 (13)
O1—V1—O4—Te1	119.1 (6)	O16—Te4—O14—Sr3^ii	−123.1 (2)
Sr4^iv—V1—O4—Te1	−121.4 (7)	O17—Te4—O14—Sr3^ii	−42.9 (2)
O7—V2—O5—Te5^ii	−102.4 (5)	O15—Te4—O14—Sr3^ii	147.8 (3)
O8—V2—O5—Te5^ii	19.6 (5)	Sr3—Te4—O14—Sr3^ii	−119.2 (3)
O6—V2—O5—Te5^ii	134.9 (4)	Sr4—Te4—O14—Sr3^ii	−80.6 (2)
Sr3^ii—V2—O5—Te5^ii	118.8 (5)	Sr2—Te4—O14—Sr3^ii	135.5 (3)
Sr4^iv—V2—O5—Te5^ii	−69.2 (5)	Sr3^iii—Te4—O14—Sr3^ii	−147.86 (17)
O7—V2—O5—Sr3^ii	138.8 (2)	O16—Te4—O14—Sr2	101.47 (19)
O8—V2—O5—Sr3^ii	−99.2 (2)	O17—Te4—O14—Sr2	−178.37 (19)
O6—V2—O5—Sr3^ii	16.1 (2)	O15—Te4—O14—Sr2	12.28 (17)
Sr4^iv—V2—O5—Sr3^ii	171.93 (4)	Sr3—Te4—O14—Sr2	105.3 (2)
O7—V2—O6—Te3^ii	−7.1 (13)	Sr4—Te4—O14—Sr2	143.93 (12)
O8—V2—O6—Te3^ii	−130.0 (12)	Sr3^ii—Te4—O14—Sr2	−135.5 (3)
O5—V2—O6—Te3^ii	114.3 (12)	Sr3^iii—Te4—O14—Sr2	76.67 (17)
Sr3^ii—V2—O6—Te3^ii	129.5 (13)	O16—Te4—O14—Sr3	−3.83 (16)
Sr4^iv—V2—O6—Te3^ii	−40.8 (13)	O17—Te4—O14—Sr3	76.33 (15)
O7—V2—O6—Sr3^ii	−136.65 (19)	O15—Te4—O14—Sr3	−93.02 (15)
O8—V2—O6—Sr3^ii	100.5 (2)	Sr4—Te4—O14—Sr3	38.63 (13)
O5—V2—O6—Sr3^ii	−15.2 (2)	Sr2—Te4—O14—Sr3	−105.3 (2)
Sr4^iv—V2—O6—Sr3^ii	−170.29 (4)	Sr3^ii—Te4—O14—Sr3	119.2 (3)
O8—V2—O7—Sr4^iv	−0.4 (4)	Sr3^iii—Te4—O14—Sr3	−28.64 (14)
O6—V2—O7—Sr4^iv	−122.4 (3)	O14—Te4—O16—Sr3^iii	−123.8 (3)
O5—V2—O7—Sr4^iv	121.1 (3)	O17—Te4—O16—Sr3^iii	146.4 (3)
Sr3^ii—V2—O7—Sr4^iv	174.85 (8)	O15—Te4—O16—Sr3^iii	−45.4 (3)
O7—V2—O8—Te1	92.3 (4)	Sr3—Te4—O16—Sr3^iii	−127.7 (3)
O6—V2—O8—Te1	−142.6 (4)	Sr4—Te4—O16—Sr3^iii	125.2 (3)
O5—V2—O8—Te1	−30.7 (4)	Sr2—Te4—O16—Sr3^iii	−85.3 (2)
Sr3^ii—V2—O8—Te1	−84.5 (4)	Sr3^ii—Te4—O16—Sr3^iii	−150.11 (19)
Sr4^iv—V2—O8—Te1	92.1 (4)	O14—Te4—O16—Sr3	3.97 (17)
O4—Te1—O10—Sr2	156.3 (2)	O17—Te4—O16—Sr3	−85.84 (16)
O9—Te1—O10—Sr2	−112.3 (3)	O15—Te4—O16—Sr3	82.33 (15)
O8—Te1—O10—Sr2	71.3 (2)	Sr4—Te4—O16—Sr3	−107.06 (18)
Sr1—Te1—O10—Sr2	−112.6 (3)	Sr2—Te4—O16—Sr3	42.41 (13)
O4—Te1—O10—Sr1	−91.1 (2)	Sr3^ii—Te4—O16—Sr3	−22.37 (16)
O9—Te1—O10—Sr1	0.25 (19)	Sr3^iii—Te4—O16—Sr3	127.7 (3)
O8—Te1—O10—Sr1	−176.14 (17)	O14—Te4—O16—Sr4	111.04 (17)
Sr2—Te1—O10—Sr1	112.6 (3)	O17—Te4—O16—Sr4	21.22 (15)
O19^ii—Te2—O11—Sr1	58.1 (2)	O15—Te4—O16—Sr4	−170.60 (15)
O12—Te2—O11—Sr1	137.7 (2)	Sr3—Te4—O16—Sr4	107.06 (18)
O9^i—Te2—O11—Sr1	−19.4 (2)	Sr2—Te4—O16—Sr4	149.47 (10)
Sr2—Te2—O11—Sr1	118.0 (3)	Sr3^ii—Te4—O16—Sr4	84.69 (14)
Sr4^ii—Te2—O11—Sr1	96.32 (17)	Sr3^iii—Te4—O16—Sr4	−125.2 (3)
O19^ii—Te2—O11—Sr2	−59.9 (2)	O15^iii—Te5—O18—Sr4	57.7 (2)
O12—Te2—O11—Sr2	19.7 (2)	O5^ii—Te5—O18—Sr4	142.7 (2)
O9^i—Te2—O11—Sr2	−137.4 (2)	O20^iii—Te5—O18—Sr4	−16.55 (19)
Sr1—Te2—O11—Sr2	−118.0 (3)	Sr3—Te5—O18—Sr4	122.3 (3)
Sr4^ii—Te2—O11—Sr2	−21.7 (2)	Sr2^iii—Te5—O18—Sr4	23.60 (19)
O17^ii—Te3—O13—Sr3	−57.0 (2)	Sr2^ii—Te5—O18—Sr4	−131.3 (3)
O12—Te3—O13—Sr3	−135.94 (19)	O15^iii—Te5—O18—Sr3	−64.56 (19)
O6^ii—Te3—O13—Sr3	19.92 (18)	O5^ii—Te5—O18—Sr3	20.49 (17)
Sr2—Te3—O13—Sr3	−121.0 (3)	O20^iii—Te5—O18—Sr3	−138.81 (16)
Sr4^ii—Te3—O13—Sr3	−93.41 (15)	Sr4—Te5—O18—Sr3	−122.3 (3)
Sr4^iii—Te3—O13—Sr3	116.3 (3)	Sr2^iii—Te5—O18—Sr3	−98.65 (13)
O17^ii—Te3—O13—Sr2	63.94 (19)	Sr2^ii—Te5—O18—Sr3	106.4 (2)
O12—Te3—O13—Sr2	−14.96 (18)	O15^iii—Te5—O18—Sr2^ii	−170.99 (18)
O6^ii—Te3—O13—Sr2	140.90 (19)	O5^ii—Te5—O18—Sr2^ii	−85.9 (2)
Sr3—Te3—O13—Sr2	121.0 (3)	O20^iii—Te5—O18—Sr2^ii	114.76 (19)
Sr4^ii—Te3—O13—Sr2	27.56 (17)	Sr3—Te5—O18—Sr2^ii	−106.4 (2)
Sr4^iii—Te3—O13—Sr2	−122.7 (3)	Sr4—Te5—O18—Sr2^ii	131.3 (3)
O17^ii—Te3—O13—Sr4^iii	−173.31 (19)	Sr2^iii—Te5—O18—Sr2^ii	154.92 (15)

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