Sr11InSb9 grown from molten In

Hullmann, J.; Xia, S.; Bobev, S.

doi:10.1107/S1600536807040615

Sr₁₁InSb₉ grown from molten In

Single crystals of the title compound, undecastrontium indium nonaantimonide, have been synthesized from a high-temperature reaction using a stoichiometric ratio of the elements Sr and Sb and excess In to act as a self-flux. The noncentrosymmetric structure has been determined from single-crystal X-ray diffraction data and has been found to be of the Ca₁₁InSb₉ structure type (Pearson code oI84). The structure can be visualized as being built of 11 Sr²⁺ cations, an [InSb₄]^9- tetrahedron, an [Sb₂]^4- dimer and three Sb^3- anions. One of six crystallographically independent Sr atoms, one of five Sb atoms and the In atom are located on positions with ..2 symmetry.

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Supporting information

	Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807040615/wm2135sup1.cif Contains datablocks global, I
	Structure factor file (CIF format) https://doi.org/10.1107/S1600536807040615/wm2135Isup2.hkl Contains datablock I

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Key indicators

Single-crystal X-ray study
T = 120 K
Mean (b-Sb) = 0.001 Å
R factor = 0.022
wR factor = 0.034
Data-to-parameter ratio = 31.6

checkCIF/PLATON results

No syntax errors found



Alert level G
REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is
            correct. If it is not, please give the correct count in the
            _publ_section_exptl_refinement section of the submitted CIF.
           From the CIF: _diffrn_reflns_theta_max           27.10
           From the CIF: _reflns_number_total               3124
           Count of symmetry unique reflns         1627
           Completeness (_total/calc)            192.01%
           TEST3: Check Friedels for noncentro structure
           Estimate of Friedel pairs measured      1497
           Fraction of Friedel pairs measured     0.920
           Are heavy atom types Z>Si present        yes
PLAT033_ALERT_2_G Flack Parameter Value Deviates 2 * su from zero.       0.02
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......          1

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

   0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   1 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

Comment top

The flux method was successfully applied for the synthesis of Yb₁₁GaSb₉ (Bobev et al., 2005), Yb₁₁InSb₉ and Eu₁₁GaSb₉ (Xia et al., 2007). The electronic structure and the properties of Yb₁₁GaSb₉ (Bobev et al., 2005) are shown to be consistent with the Zintl concept (Zintl, 1939) and confirm that this class of compounds are small band-gap semiconductors or poor metals, as Eu₁₁InSb₉ and Yb₁₁InSb₉ (Xia et al., 2007), whereas the Ca-analogs are reported to be semiconductors with larger band-gaps (Young & Kauzlarich, 1995). The close structural relationship between the Ca₁₁InSb₉ structure type (Cordier et al., 1985a) and that of the monoclinic Ca₂₁Mn₄Bi₁₈ structure has been discussed in an earlier publication (Xia and Bobev, 2007). In connection with these studies, we undertook a similar synthetic approach in the Sr—In—Sb system.

Sr₁₁InSb₉ is a new member of the orthorhombic Ca₁₁InSb₉ structure type (Pearson's code oI84; Villars & Calvert, 1991). Its structure is very complex and has 12 crystallographically unique sites in the asymmetric unit. Thus it is difficult to explain in terms of packing of spheres; however, it can be rationalized simply using the Zintl formalism (Zintl, 1939). According to these rules and assuming a complete valence electron transfer from the less electronegative element, Sr, to the more electronegative In and Sb, one can visualize the structure as being built of eleven Sr²⁺ cations, an [InSb₄]^9- tetrahedron, an [Sb₂]^4- dimer, and three Sb^3- anions (Fig. 1).

The In—Sb bonding in the In centered tetrahedron has a covalent character with In—Sb distances ranging between 2.9213 (7) and 2.9312 (6) Å. These values are comparable to the In—Sb distances in the isotypic and isoelectronic Eu₁₁InSb₉, 2.913 (2) and 2.932 (2) Å (Xia et al., 2007). We note that since Eu is divalent in Eu₁₁InSb₉ and since the ionic radii of Sr²⁺ and Eu²⁺ are nearly the same (Shannon, 1976), such comparison is straightforward. Not surprisingly, the Sb—Sb distance in Sr₁₁InSb₉ (2.8437 (9) Å) matches closely the Sb—Sb distance in the Eu analog (2.823 (2) Å) and also signifies strong covalent bonding. The interactions between the Sr²⁺ cations and the anions are more electrostatic in nature as evidenced by the larger coordination numbers and distances.

Related literature top

Sr₁₁InSb₉ is a Zintl (1939) compound and crystallizes in the Ca₁₁InSb₉ structure type (Cordier et al., 1985a). The latter compound is reported to be a semiconductor with a large band gap (Young & Kauzlarich, 1995). The title compound is isotypic with Yb₁₁GaSb₉ (Bobev et al., 2005), Yb₁₁InSb₉ and Eu₁₁GaSb₉ (Xia et al., 2007), all with Pearson code oI84 (Villars & Calvert, 1991). The relationship between the Ca₁₁InSb₉ structure type and that of Ca₂₁Mn₄Bi₁₈ has been discussed by Xia & Bobev (2007). Ionic radii were taken from Shannon (1976). Crystals of Sr₅In₂Sb₆ (Cordier et al., 1985b) were also present in the reaction mixture.

Experimental top

Handling of the raw materials and the reaction products was done inside an Ar filled glove box. The reaction was carried out by loading the elements in an alumina crucible: Sr (Aldrich, pieces, distilled 99.99%), In (Alfa, shot, 99.99%), and Sb (Alfa, shot, 99.99%) in a ratio of 11:75:9. The large excess of In was intended as a metal flux. The crucible with the reaction mixture was then flame sealed under vacuum in a silica ampoule which was then placed in a furnace and heated to 1273 K at a rate of 300 K/h. The reaction proceeded at this temperature for 24 h before being cooled to 873 K at a rate of 10 K/h. At 873 K the ampoule was removed and the In flux was decanted. The main product of the reaction consisted of black crystals with irregular shapes, which were later determined to be the title compound. Also present were silver-metallic crystals with needle-like habit, which were found to be Sr₅In₂Sb₆ (Cordier et al., 1985b). Note that Sr₁₁InSb₉ crystals decompose in air.

Structure description top

Computing details top

Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT (Bruker, 2002); program(s) used to solve structure: SHELXTL (Bruker, 2002); program(s) used to refine structure: SHELXTL (Bruker, 2002); molecular graphics: XP in SHELXTL (Bruker, 2002); software used to prepare material for publication: SHELXTL (Bruker, 2002).

Figures top

Fig. 1. A view of the structure of Sr₁₁InSb₉ along the c axis. Thermal ellipsoids are drawn at the 90% probability level. The Sr, In and Sb atoms are represented in red, green and light blue color, respectively.

undecastrontium indium nonaantimonide top

Crystal data top

Sr₁₁InSb₉	F(000) = 3704
M_r = 2174.39	D_x = 5.086 Mg m⁻³
Orthorhombic, Iba2	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: I 2 -2c	Cell parameters from 3124 reflections
a = 12.3885 (13) Å	θ = 2.3–27.1°
b = 13.1003 (14) Å	µ = 29.64 mm⁻¹
c = 17.4966 (18) Å	T = 120 K
V = 2839.6 (5) Å³	Irregular, black
Z = 4	0.08 × 0.05 × 0.04 mm

Data collection top

Bruker SMART APEX diffractometer	3124 independent reflections
Radiation source: fine-focus sealed tube	2972 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.046
ω scans	θ_max = 27.1°, θ_min = 2.3°
Absorption correction: multi-scan (SADABS; Sheldrick, 2003)	h = −15→15
T_min = 0.172, T_max = 0.308	k = −16→16
15129 measured reflections	l = −22→22

Refinement top

Refinement on F²	w = 1/[σ²(F_o²) + (0.001P)²] where P = (F_o² + 2F_c²)/3
Least-squares matrix: full	(Δ/σ)_max < 0.001
R[F² > 2σ(F²)] = 0.022	Δρ_max = 0.90 e Å⁻³
wR(F²) = 0.034	Δρ_min = −1.01 e Å⁻³
S = 0.90	Extinction correction: SHELXTL (Bruker, 2002)
3124 reflections	Extinction coefficient: 0.000020 (3)
99 parameters	Absolute structure: Flack (1983), 1496 Friedel pairs
1 restraint	Absolute structure parameter: 0.017 (6)

Crystal data top

Sr₁₁InSb₉	V = 2839.6 (5) Å³
M_r = 2174.39	Z = 4
Orthorhombic, Iba2	Mo Kα radiation
a = 12.3885 (13) Å	µ = 29.64 mm⁻¹
b = 13.1003 (14) Å	T = 120 K
c = 17.4966 (18) Å	0.08 × 0.05 × 0.04 mm

Data collection top

Bruker SMART APEX diffractometer	3124 independent reflections
Absorption correction: multi-scan (SADABS; Sheldrick, 2003)	2972 reflections with I > 2σ(I)
T_min = 0.172, T_max = 0.308	R_int = 0.046
15129 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.022	1 restraint
wR(F²) = 0.034	Δρ_max = 0.90 e Å⁻³
S = 0.90	Δρ_min = −1.01 e Å⁻³
3124 reflections	Absolute structure: Flack (1983), 1496 Friedel pairs
99 parameters	Absolute structure parameter: 0.017 (6)

Special details top

Experimental. Crystals were selected in the glove box and cut in a Paratone N oil bath to the desired dimensions. A suitable crystal was then chosen mounted on the tip of a glass fiber and quickly placed under the cold nitrogen stream (ca 150 K) in a Bruker SMART CCD-based diffractometer.

Data collection is performed with four batch runs at φ = 0.00 ° (450 frames), at φ = 90.00 ° (450 frames), at φ = 180.00 ° (450 frames), and at φ = 270.00 (450 frames). Frame width = 0.40 ° in ω. Data are merged, corrected for decay, and treated with multi-scan absorption corrections.

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
Sr1	0.42681 (6)	0.22217 (5)	0.65758 (5)	0.01021 (16)
Sr2	0.68413 (6)	0.05401 (6)	0.62855 (4)	0.01204 (16)
Sr3	0.41024 (6)	0.22651 (6)	0.34159 (4)	0.01095 (17)
Sr4	0.68627 (7)	0.05890 (6)	0.36909 (5)	0.01248 (17)
Sr5	0.84036 (5)	0.17355 (5)	0.99994 (6)	0.01271 (14)
Sr6	0.0000	0.0000	0.67821 (6)	0.0126 (2)
Sb1	0.87132 (3)	0.11611 (3)	0.50258 (4)	0.01040 (10)
Sb2	0.0000	0.5000	0.25098 (5)	0.00951 (14)
Sb3	0.17692 (4)	0.17776 (4)	0.68278 (3)	0.01071 (11)
Sb4	0.46656 (4)	0.10383 (3)	0.49699 (3)	0.01059 (10)
Sb5	0.14600 (4)	0.13808 (4)	0.31116 (3)	0.01019 (11)
In1	0.0000	0.0000	0.39295 (4)	0.01094 (17)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Sr1	0.0093 (4)	0.0111 (4)	0.0103 (4)	−0.0002 (3)	0.0005 (3)	−0.0007 (3)
Sr2	0.0110 (4)	0.0122 (4)	0.0129 (4)	−0.0004 (3)	0.0026 (3)	0.0013 (3)
Sr3	0.0109 (4)	0.0118 (4)	0.0101 (4)	0.0007 (3)	−0.0004 (3)	0.0005 (3)
Sr4	0.0110 (4)	0.0133 (4)	0.0132 (4)	0.0009 (3)	−0.0022 (3)	−0.0020 (3)
Sr5	0.0142 (3)	0.0144 (4)	0.0095 (3)	0.0010 (3)	0.0000 (3)	−0.0006 (4)
Sr6	0.0100 (5)	0.0099 (5)	0.0179 (6)	−0.0008 (4)	0.000	0.000
Sb1	0.0097 (2)	0.0122 (2)	0.0092 (2)	−0.00036 (18)	−0.0001 (3)	−0.0003 (2)
Sb2	0.0094 (3)	0.0108 (3)	0.0084 (3)	0.0000 (4)	0.000	0.000
Sb3	0.0096 (2)	0.0123 (2)	0.0102 (3)	−0.0004 (2)	0.0004 (2)	−0.0011 (2)
Sb4	0.0119 (2)	0.0109 (2)	0.0089 (2)	0.00097 (18)	−0.0004 (3)	0.0003 (2)
Sb5	0.0093 (2)	0.0121 (2)	0.0091 (3)	0.0006 (2)	−0.0005 (2)	0.0004 (2)
In1	0.0103 (4)	0.0116 (4)	0.0109 (4)	−0.0009 (3)	0.000	0.000

Geometric parameters (Å, º) top

Sr1—Sb3	3.1806 (9)	Sr5—Sr1^xiv	4.2183 (12)
Sr1—Sb4	3.2466 (10)	Sr6—Sb3	3.1990 (5)
Sr1—Sb5ⁱ	3.3742 (10)	Sr6—Sb3^xvi	3.1990 (5)
Sr1—Sb3ⁱⁱ	3.3932 (9)	Sr6—Sb5^xvii	3.4575 (9)
Sr1—Sb2ⁱⁱⁱ	3.4589 (9)	Sr6—Sb5^xv	3.4575 (9)
Sr1—Sb1^iv	3.5094 (10)	Sr6—In1^xv	3.7572 (14)
Sr1—Sr6ⁱⁱ	3.7682 (8)	Sr6—Sr1^xviii	3.7682 (8)
Sr1—Sr3^v	3.8005 (10)	Sr6—Sr1^iv	3.7682 (8)
Sr1—Sr2^vi	3.9034 (11)	Sr6—Sb1^xix	3.7814 (11)
Sr1—Sr2	3.9081 (11)	Sr6—Sb1^vi	3.7814 (11)
Sr1—Sr5^vii	4.2183 (11)	Sr6—Sr2^xix	4.0704 (9)
Sr1—Sr2^iv	4.2301 (11)	Sr6—Sr2^vi	4.0704 (9)
Sr2—Sb2ⁱⁱⁱ	3.2082 (10)	Sr6—Sr5^xx	4.3371 (12)
Sr2—Sb1	3.3012 (10)	Sb1—In1^viii	2.9213 (7)
Sr2—Sb4	3.6040 (10)	Sb1—Sr1ⁱⁱ	3.5094 (10)
Sr2—Sb4^vi	3.6137 (10)	Sb1—Sr3ⁱⁱ	3.5238 (10)
Sr2—Sb3^vi	3.6170 (9)	Sb1—Sr5^xxi	3.6506 (9)
Sr2—Sb3ⁱⁱ	3.6409 (10)	Sb1—Sr6^viii	3.7813 (11)
Sr2—Sr1^vi	3.9034 (11)	Sb1—Sr5^vii	3.8041 (9)
Sr2—Sb5^v	3.9812 (10)	Sb1—Sr5^ix	3.8143 (9)
Sr2—Sr6^viii	4.0704 (9)	Sb2—Sr4^iv	3.1924 (10)
Sr2—Sr5^ix	4.2067 (12)	Sb2—Sr4^xxii	3.1924 (10)
Sr2—Sr1ⁱⁱ	4.2301 (11)	Sb2—Sr2^x	3.2081 (10)
Sr3—Sb3^x	3.2340 (10)	Sb2—Sr2^xxiii	3.2081 (10)
Sr3—Sb4	3.2347 (10)	Sb2—Sr1^x	3.4588 (9)
Sr3—Sb5ⁱⁱ	3.4584 (9)	Sb2—Sr1^xxiii	3.4588 (9)
Sr3—Sb5	3.5131 (9)	Sb2—Sr3^xxii	3.5434 (9)
Sr3—Sb1^iv	3.5237 (10)	Sb2—Sr3^iv	3.5434 (9)
Sr3—Sb2ⁱⁱ	3.5434 (9)	Sb3—Sr5^xi	3.2068 (11)
Sr3—Sr1^xi	3.8006 (10)	Sb3—Sr3ⁱ	3.2340 (10)
Sr3—In1ⁱⁱ	3.8575 (8)	Sb3—Sr1^iv	3.3932 (9)
Sr3—Sr4^vi	3.9550 (11)	Sb3—Sr2^vi	3.6170 (9)
Sr3—Sr4^iv	3.9790 (11)	Sb3—Sr2^iv	3.6408 (10)
Sr3—Sr4	4.0923 (11)	Sb3—Sr4^v	3.9903 (10)
Sr3—Sr5^xi	4.2184 (12)	Sb4—Sb4^vi	2.8437 (9)
Sr4—Sb2ⁱⁱ	3.1924 (10)	Sb4—Sr2^vi	3.6137 (10)
Sr4—Sb1	3.3574 (10)	Sb4—Sr4^vi	3.6246 (10)
Sr4—Sb5^vi	3.4647 (10)	Sb4—Sr5^vii	3.7722 (9)
Sr4—Sb4	3.5726 (10)	Sb4—Sr5^xi	3.9107 (9)
Sr4—Sb4^vi	3.6246 (10)	Sb5—In1	2.9311 (6)
Sr4—Sr3^vi	3.9550 (11)	Sb5—Sr5^xi	3.3398 (11)
Sr4—Sr3ⁱⁱ	3.9789 (11)	Sb5—Sr1^x	3.3743 (10)
Sr4—In1^viii	3.9844 (9)	Sb5—Sr6^ix	3.4575 (9)
Sr4—Sb3^xi	3.9903 (10)	Sb5—Sr3^iv	3.4584 (9)
Sr4—Sr5^vii	4.1993 (12)	Sb5—Sr4^vi	3.4647 (10)
Sr4—Sr5^ix	4.2613 (11)	Sb5—Sr2^xi	3.9812 (10)
Sr5—Sb3^v	3.2068 (11)	In1—Sb1^vi	2.9213 (7)
Sr5—Sb5^v	3.3398 (11)	In1—Sb1^xix	2.9213 (7)
Sr5—In1^xii	3.5475 (9)	In1—Sb5^xvi	2.9312 (6)
Sr5—Sb1^xiii	3.6506 (9)	In1—Sr5^xi	3.5475 (9)
Sr5—Sb4^xiv	3.7722 (9)	In1—Sr5^xx	3.5475 (9)
Sr5—Sb1^xiv	3.8041 (9)	In1—Sr6^ix	3.7572 (14)
Sr5—Sb1^xv	3.8143 (9)	In1—Sr3^xviii	3.8575 (8)
Sr5—Sb4^v	3.9108 (9)	In1—Sr3^iv	3.8575 (8)
Sr5—Sr4^xiv	4.1993 (12)	In1—Sr4^xix	3.9844 (9)
Sr5—Sr2^xv	4.2067 (12)	In1—Sr4^vi	3.9844 (9)
Sr5—Sr3^v	4.2185 (12)

Sb3—Sr1—Sb4	100.39 (2)	Sb4^xiv—Sr5—Sr2^xv	147.88 (3)
Sb3—Sr1—Sb5ⁱ	74.26 (2)	Sb1^xiv—Sr5—Sr2^xv	100.93 (2)
Sb4—Sr1—Sb5ⁱ	171.42 (3)	Sb1^xv—Sr5—Sr2^xv	48.302 (17)
Sb3—Sr1—Sb3ⁱⁱ	160.29 (3)	Sb4^v—Sr5—Sr2^xv	52.715 (16)
Sb4—Sr1—Sb3ⁱⁱ	99.12 (2)	Sr4^xiv—Sr5—Sr2^xv	147.88 (3)
Sb5ⁱ—Sr1—Sb3ⁱⁱ	86.04 (2)	Sb3^v—Sr5—Sr3^v	127.10 (2)
Sb3—Sr1—Sb2ⁱⁱⁱ	92.05 (2)	Sb5^v—Sr5—Sr3^v	53.885 (19)
Sb4—Sr1—Sb2ⁱⁱⁱ	88.12 (2)	In1^xii—Sr5—Sr3^v	99.74 (3)
Sb5ⁱ—Sr1—Sb2ⁱⁱⁱ	98.65 (3)	Sb1^xiii—Sr5—Sr3^v	139.66 (3)
Sb3ⁱⁱ—Sr1—Sb2ⁱⁱⁱ	91.39 (2)	Sb4^xiv—Sr5—Sr3^v	109.30 (2)
Sb3—Sr1—Sb1^iv	91.54 (2)	Sb1^xiv—Sr5—Sr3^v	51.795 (17)
Sb4—Sr1—Sb1^iv	69.46 (2)	Sb1^xv—Sr5—Sr3^v	104.22 (2)
Sb5ⁱ—Sr1—Sb1^iv	103.62 (2)	Sb4^v—Sr5—Sr3^v	46.706 (17)
Sb3ⁱⁱ—Sr1—Sb1^iv	92.64 (2)	Sr4^xiv—Sr5—Sr3^v	56.416 (19)
Sb2ⁱⁱⁱ—Sr1—Sb1^iv	157.58 (3)	Sr2^xv—Sr5—Sr3^v	97.43 (2)
Sb3—Sr1—Sr6ⁱⁱ	113.43 (2)	Sb3^v—Sr5—Sr1^xiv	52.249 (19)
Sb4—Sr1—Sr6ⁱⁱ	120.51 (3)	Sb5^v—Sr5—Sr1^xiv	131.08 (2)
Sb5ⁱ—Sr1—Sr6ⁱⁱ	57.59 (2)	In1^xii—Sr5—Sr1^xiv	99.87 (2)
Sb3ⁱⁱ—Sr1—Sr6ⁱⁱ	52.747 (13)	Sb1^xiii—Sr5—Sr1^xiv	52.369 (18)
Sb2ⁱⁱⁱ—Sr1—Sr6ⁱⁱ	134.78 (3)	Sb4^xiv—Sr5—Sr1^xiv	47.542 (16)
Sb1^iv—Sr1—Sr6ⁱⁱ	62.49 (2)	Sb1^xiv—Sr5—Sr1^xiv	103.23 (2)
Sb3—Sr1—Sr3^v	113.72 (2)	Sb1^xv—Sr5—Sr1^xiv	104.21 (2)
Sb4—Sr1—Sr3^v	131.28 (3)	Sb4^v—Sr5—Sr1^xiv	138.51 (3)
Sb5ⁱ—Sr1—Sr3^v	57.265 (19)	Sr4^xiv—Sr5—Sr1^xiv	98.04 (2)
Sb3ⁱⁱ—Sr1—Sr3^v	53.062 (19)	Sr2^xv—Sr5—Sr1^xiv	101.21 (3)
Sb2ⁱⁱⁱ—Sr1—Sr3^v	58.21 (2)	Sr3^v—Sr5—Sr1^xiv	151.57 (2)
Sb1^iv—Sr1—Sr3^v	138.56 (3)	Sb3—Sr6—Sb3^xvi	177.13 (4)
Sr6ⁱⁱ—Sr1—Sr3^v	77.09 (2)	Sb3—Sr6—Sb5^xvii	87.749 (19)
Sb3—Sr1—Sr2^vi	60.385 (19)	Sb3^xvi—Sr6—Sb5^xvii	90.321 (19)
Sb4—Sr1—Sr2^vi	59.880 (19)	Sb3—Sr6—Sb5^xv	90.322 (19)
Sb5ⁱ—Sr1—Sr2^vi	120.82 (3)	Sb3^xvi—Sr6—Sb5^xv	87.749 (19)
Sb3ⁱⁱ—Sr1—Sr2^vi	134.15 (3)	Sb5^xvii—Sr6—Sb5^xv	95.44 (3)
Sb2ⁱⁱⁱ—Sr1—Sr2^vi	51.232 (18)	Sb3—Sr6—In1^xv	88.57 (2)
Sb1^iv—Sr1—Sr2^vi	112.96 (3)	Sb3^xvi—Sr6—In1^xv	88.57 (2)
Sr6ⁱⁱ—Sr1—Sr2^vi	172.95 (3)	Sb5^xvii—Sr6—In1^xv	47.719 (16)
Sr3^v—Sr1—Sr2^vi	108.13 (3)	Sb5^xv—Sr6—In1^xv	47.719 (16)
Sb3—Sr1—Sr2	135.14 (3)	Sb3—Sr6—Sr1^xviii	122.728 (16)
Sb4—Sr1—Sr2	59.643 (19)	Sb3^xvi—Sr6—Sr1^xviii	57.598 (16)
Sb5ⁱ—Sr1—Sr2	128.86 (3)	Sb5^xvii—Sr6—Sr1^xviii	134.08 (3)
Sb3ⁱⁱ—Sr1—Sr2	59.32 (2)	Sb5^xv—Sr6—Sr1^xviii	55.475 (16)
Sb2ⁱⁱⁱ—Sr1—Sr2	51.188 (17)	In1^xv—Sr6—Sr1^xviii	95.50 (2)
Sb1^iv—Sr1—Sr2	113.55 (3)	Sb3—Sr6—Sr1^iv	57.598 (16)
Sr6ⁱⁱ—Sr1—Sr2	111.14 (2)	Sb3^xvi—Sr6—Sr1^iv	122.728 (16)
Sr3^v—Sr1—Sr2	71.65 (2)	Sb5^xvii—Sr6—Sr1^iv	55.475 (16)
Sr2^vi—Sr1—Sr2	75.39 (2)	Sb5^xv—Sr6—Sr1^iv	134.08 (3)
Sb3—Sr1—Sr5^vii	144.63 (3)	In1^xv—Sr6—Sr1^iv	95.50 (2)
Sb4—Sr1—Sr5^vii	59.01 (2)	Sr1^xviii—Sr6—Sr1^iv	169.01 (4)
Sb5ⁱ—Sr1—Sr5^vii	121.86 (2)	Sb3—Sr6—Sb1^xix	90.94 (2)
Sb3ⁱⁱ—Sr1—Sr5^vii	48.352 (18)	Sb3^xvi—Sr6—Sb1^xix	91.39 (2)
Sb2ⁱⁱⁱ—Sr1—Sr5^vii	113.71 (2)	Sb5^xvii—Sr6—Sb1^xix	96.647 (14)
Sb1^iv—Sr1—Sr5^vii	55.470 (17)	Sb5^xv—Sr6—Sb1^xix	167.89 (3)
Sr6ⁱⁱ—Sr1—Sr5^vii	65.50 (2)	In1^xv—Sr6—Sb1^xix	144.359 (13)
Sr3^v—Sr1—Sr5^vii	100.71 (2)	Sr1^xviii—Sr6—Sb1^xix	114.34 (3)
Sr2^vi—Sr1—Sr5^vii	117.12 (2)	Sr1^iv—Sr6—Sb1^xix	55.401 (16)
Sr2—Sr1—Sr5^vii	62.599 (19)	Sb3—Sr6—Sb1^vi	91.39 (2)
Sb3—Sr1—Sr2^iv	56.749 (18)	Sb3^xvi—Sr6—Sb1^vi	90.94 (2)
Sb4—Sr1—Sr2^iv	109.57 (2)	Sb5^xvii—Sr6—Sb1^vi	167.89 (3)
Sb5ⁱ—Sr1—Sr2^iv	61.937 (18)	Sb5^xv—Sr6—Sb1^vi	96.647 (14)
Sb3ⁱⁱ—Sr1—Sr2^iv	113.38 (2)	In1^xv—Sr6—Sb1^vi	144.359 (13)
Sb2ⁱⁱⁱ—Sr1—Sr2^iv	145.72 (3)	Sr1^xviii—Sr6—Sb1^vi	55.401 (16)
Sb1^iv—Sr1—Sr2^iv	49.425 (17)	Sr1^iv—Sr6—Sb1^vi	114.34 (3)
Sr6ⁱⁱ—Sr1—Sr2^iv	60.858 (17)	Sb1^xix—Sr6—Sb1^vi	71.28 (3)
Sr3^v—Sr1—Sr2^iv	117.96 (2)	Sb3—Sr6—Sr2^xix	122.512 (16)
Sr2^vi—Sr1—Sr2^iv	112.12 (2)	Sb3^xvi—Sr6—Sr2^xix	58.210 (15)
Sr2—Sr1—Sr2^iv	162.72 (3)	Sb5^xvii—Sr6—Sr2^xix	63.240 (15)
Sr5^vii—Sr1—Sr2^iv	100.55 (2)	Sb5^xv—Sr6—Sr2^xix	137.52 (2)
Sb2ⁱⁱⁱ—Sr2—Sb1	178.44 (3)	In1^xv—Sr6—Sr2^xix	102.325 (18)
Sb2ⁱⁱⁱ—Sr2—Sb4	86.25 (2)	Sr1^xviii—Sr6—Sr2^xix	112.258 (18)
Sb1—Sr2—Sb4	93.11 (2)	Sr1^iv—Sr6—Sr2^xix	65.186 (16)
Sb2ⁱⁱⁱ—Sr2—Sb4^vi	86.09 (2)	Sb1^xix—Sr6—Sr2^xix	49.557 (15)
Sb1—Sr2—Sb4^vi	94.51 (2)	Sb1^vi—Sr6—Sr2^xix	107.56 (3)
Sb4—Sr2—Sb4^vi	46.406 (18)	Sb3—Sr6—Sr2^vi	58.210 (15)
Sb2ⁱⁱⁱ—Sr2—Sb3^vi	88.74 (2)	Sb3^xvi—Sr6—Sr2^vi	122.513 (16)
Sb1—Sr2—Sb3^vi	92.74 (2)	Sb5^xvii—Sr6—Sr2^vi	137.52 (2)
Sb4—Sr2—Sb3^vi	132.49 (3)	Sb5^xv—Sr6—Sr2^vi	63.240 (15)
Sb4^vi—Sr2—Sb3^vi	86.14 (2)	In1^xv—Sr6—Sr2^vi	102.325 (19)
Sb2ⁱⁱⁱ—Sr2—Sb3ⁱⁱ	91.23 (2)	Sr1^xviii—Sr6—Sr2^vi	65.186 (16)
Sb1—Sr2—Sb3ⁱⁱ	87.33 (2)	Sr1^iv—Sr6—Sr2^vi	112.258 (18)
Sb4—Sr2—Sb3ⁱⁱ	88.47 (2)	Sb1^xix—Sr6—Sr2^vi	107.56 (3)
Sb4^vi—Sr2—Sb3ⁱⁱ	134.88 (3)	Sb1^vi—Sr6—Sr2^vi	49.557 (15)
Sb3^vi—Sr2—Sb3ⁱⁱ	138.89 (3)	Sr2^xix—Sr6—Sr2^vi	155.35 (4)
Sb2ⁱⁱⁱ—Sr2—Sr1^vi	57.205 (18)	Sb3—Sr6—Sr5^xx	135.40 (3)
Sb1—Sr2—Sr1^vi	124.24 (3)	Sb3^xvi—Sr6—Sr5^xx	47.463 (18)
Sb4—Sr2—Sr1^vi	89.29 (2)	Sb5^xvii—Sr6—Sr5^xx	121.303 (14)
Sb4^vi—Sr2—Sr1^vi	50.998 (18)	Sb5^xv—Sr6—Sr5^xx	116.624 (14)
Sb3^vi—Sr2—Sr1^vi	49.860 (18)	In1^xv—Sr6—Sr5^xx	135.988 (15)
Sb3ⁱⁱ—Sr2—Sr1^vi	148.43 (3)	Sr1^xviii—Sr6—Sr5^xx	62.257 (18)
Sb2ⁱⁱⁱ—Sr2—Sr1	57.150 (18)	Sr1^iv—Sr6—Sr5^xx	109.13 (2)
Sb1—Sr2—Sr1	121.39 (3)	Sb1^xix—Sr6—Sr5^xx	55.539 (18)
Sb4—Sr2—Sr1	51.015 (19)	Sb1^vi—Sr6—Sr5^xx	52.908 (17)
Sb4^vi—Sr2—Sr1	89.08 (2)	Sr2^xix—Sr6—Sr5^xx	59.948 (17)
Sb3^vi—Sr2—Sr1	145.82 (3)	Sr2^vi—Sr6—Sr5^xx	101.17 (2)
Sb3ⁱⁱ—Sr2—Sr1	53.280 (18)	In1^viii—Sb1—Sr2	133.90 (2)
Sr1^vi—Sr2—Sr1	102.61 (2)	In1^viii—Sb1—Sr4	78.44 (2)
Sb2ⁱⁱⁱ—Sr2—Sb5^v	84.32 (2)	Sr2—Sb1—Sr4	85.97 (2)
Sb1—Sr2—Sb5^v	95.53 (2)	In1^viii—Sb1—Sr1ⁱⁱ	135.63 (2)
Sb4—Sr2—Sb5^v	149.07 (3)	Sr2—Sb1—Sr1ⁱⁱ	76.73 (2)
Sb4^vi—Sr2—Sb5^v	160.48 (3)	Sr4—Sb1—Sr1ⁱⁱ	143.72 (2)
Sb3^vi—Sr2—Sb5^v	76.71 (2)	In1^viii—Sb1—Sr3ⁱⁱ	72.85 (2)
Sb3ⁱⁱ—Sr2—Sb5^v	62.406 (17)	Sr2—Sb1—Sr3ⁱⁱ	140.72 (2)
Sr1^vi—Sr2—Sb5^v	109.76 (2)	Sr4—Sb1—Sr3ⁱⁱ	70.61 (2)
Sr1—Sr2—Sb5^v	99.84 (2)	Sr1ⁱⁱ—Sb1—Sr3ⁱⁱ	103.75 (2)
Sb2ⁱⁱⁱ—Sr2—Sr6^viii	120.18 (3)	In1^viii—Sb1—Sr5^xxi	64.221 (17)
Sb1—Sr2—Sr6^viii	60.66 (2)	Sr2—Sb1—Sr5^xxi	138.30 (3)
Sb4—Sr2—Sr6^viii	152.47 (3)	Sr4—Sb1—Sr5^xxi	134.85 (3)
Sb4^vi—Sr2—Sr6^viii	122.22 (2)	Sr1ⁱⁱ—Sb1—Sr5^xxi	72.16 (2)
Sb3^vi—Sr2—Sr6^viii	48.743 (13)	Sr3ⁱⁱ—Sb1—Sr5^xxi	74.66 (2)
Sb3ⁱⁱ—Sr2—Sr6^viii	97.80 (2)	In1^viii—Sb1—Sr6^viii	95.40 (2)
Sr1^vi—Sr2—Sr6^viii	98.60 (2)	Sr2—Sb1—Sr6^viii	69.78 (2)
Sr1—Sr2—Sr6^viii	148.70 (3)	Sr4—Sb1—Sr6^viii	139.77 (2)
Sb5^v—Sr2—Sr6^viii	50.847 (18)	Sr1ⁱⁱ—Sb1—Sr6^viii	62.111 (18)
Sb2ⁱⁱⁱ—Sr2—Sr5^ix	121.87 (2)	Sr3ⁱⁱ—Sb1—Sr6^viii	145.822 (19)
Sb1—Sr2—Sr5^ix	59.623 (19)	Sr5^xxi—Sb1—Sr6^viii	71.380 (18)
Sb4—Sr2—Sr5^ix	97.51 (2)	In1^viii—Sb1—Sr5^vii	138.19 (3)
Sb4^vi—Sr2—Sr5^ix	59.433 (18)	Sr2—Sb1—Sr5^vii	72.68 (2)
Sb3^vi—Sr2—Sr5^ix	47.663 (18)	Sr4—Sb1—Sr5^vii	71.49 (2)
Sb3ⁱⁱ—Sr2—Sr5^ix	146.58 (3)	Sr1ⁱⁱ—Sb1—Sr5^vii	72.97 (2)
Sr1^vi—Sr2—Sr5^ix	64.83 (2)	Sr3ⁱⁱ—Sb1—Sr5^vii	70.17 (2)
Sr1—Sr2—Sr5^ix	147.59 (3)	Sr5^xxi—Sb1—Sr5^vii	121.670 (15)
Sb5^v—Sr2—Sr5^ix	112.47 (2)	Sr6^viii—Sb1—Sr5^vii	126.29 (3)
Sr6^viii—Sr2—Sr5^ix	63.174 (19)	In1^viii—Sb1—Sr5^ix	61.896 (17)
Sb2ⁱⁱⁱ—Sr2—Sr1ⁱⁱ	125.31 (3)	Sr2—Sb1—Sr5^ix	72.08 (2)
Sb1—Sr2—Sr1ⁱⁱ	53.848 (19)	Sr4—Sb1—Sr5^ix	72.59 (2)
Sb4—Sr2—Sr1ⁱⁱ	118.86 (2)	Sr1ⁱⁱ—Sb1—Sr5^ix	129.02 (3)
Sb4^vi—Sr2—Sr1ⁱⁱ	147.17 (3)	Sr3ⁱⁱ—Sb1—Sr5^ix	125.88 (3)
Sb3^vi—Sr2—Sr1ⁱⁱ	102.25 (2)	Sr5^xxi—Sb1—Sr5^ix	107.658 (16)
Sb3ⁱⁱ—Sr2—Sr1ⁱⁱ	46.933 (16)	Sr6^viii—Sb1—Sr5^ix	69.637 (17)
Sr1^vi—Sr2—Sr1ⁱⁱ	151.29 (3)	Sr5^vii—Sb1—Sr5^ix	130.627 (14)
Sr1—Sr2—Sr1ⁱⁱ	99.985 (19)	Sr4^iv—Sb2—Sr4^xxii	99.32 (4)
Sb5^v—Sr2—Sr1ⁱⁱ	48.409 (16)	Sr4^iv—Sb2—Sr2^x	153.237 (17)
Sr6^viii—Sr2—Sr1ⁱⁱ	53.956 (15)	Sr4^xxii—Sb2—Sr2^x	88.370 (18)
Sr5^ix—Sr2—Sr1ⁱⁱ	103.21 (2)	Sr4^iv—Sb2—Sr2^xxiii	88.370 (18)
Sb3^x—Sr3—Sb4	170.71 (3)	Sr4^xxii—Sb2—Sr2^xxiii	153.237 (17)
Sb3^x—Sr3—Sb5ⁱⁱ	87.18 (2)	Sr2^x—Sb2—Sr2^xxiii	96.22 (4)
Sb4—Sr3—Sb5ⁱⁱ	101.66 (2)	Sr4^iv—Sb2—Sr1^x	85.00 (2)
Sb3^x—Sr3—Sb5	71.732 (19)	Sr4^xxii—Sb2—Sr1^x	134.33 (2)
Sb4—Sr3—Sb5	99.47 (2)	Sr2^x—Sb2—Sr1^x	71.66 (2)
Sb5ⁱⁱ—Sr3—Sb5	158.87 (3)	Sr2^xxiii—Sb2—Sr1^x	71.56 (2)
Sb3^x—Sr3—Sb1^iv	114.47 (3)	Sr4^iv—Sb2—Sr1^xxiii	134.33 (2)
Sb4—Sr3—Sb1^iv	69.41 (2)	Sr4^xxii—Sb2—Sr1^xxiii	85.00 (2)
Sb5ⁱⁱ—Sr3—Sb1^iv	86.48 (2)	Sr2^x—Sb2—Sr1^xxiii	71.56 (2)
Sb5—Sr3—Sb1^iv	100.75 (2)	Sr2^xxiii—Sb2—Sr1^xxiii	71.66 (2)
Sb3^x—Sr3—Sb2ⁱⁱ	92.58 (2)	Sr1^x—Sb2—Sr1^xxiii	123.61 (4)
Sb4—Sr3—Sb2ⁱⁱ	83.82 (2)	Sr4^iv—Sb2—Sr3^xxii	71.70 (2)
Sb5ⁱⁱ—Sr3—Sb2ⁱⁱ	95.49 (2)	Sr4^xxii—Sb2—Sr3^xxii	74.62 (2)
Sb5—Sr3—Sb2ⁱⁱ	87.044 (19)	Sr2^x—Sb2—Sr3^xxii	134.96 (2)
Sb1^iv—Sr3—Sb2ⁱⁱ	152.95 (3)	Sr2^xxiii—Sb2—Sr3^xxii	83.74 (2)
Sb3^x—Sr3—Sr1^xi	56.998 (19)	Sr1^x—Sb2—Sr3^xxii	146.491 (17)
Sb4—Sr3—Sr1^xi	126.16 (3)	Sr1^xxiii—Sb2—Sr3^xxii	65.730 (16)
Sb5ⁱⁱ—Sr3—Sr1^xi	55.156 (19)	Sr4^iv—Sb2—Sr3^iv	74.62 (2)
Sb5—Sr3—Sr1^xi	111.20 (2)	Sr4^xxii—Sb2—Sr3^iv	71.70 (2)
Sb1^iv—Sr3—Sr1^xi	139.34 (3)	Sr2^x—Sb2—Sr3^iv	83.74 (2)
Sb2ⁱⁱ—Sr3—Sr1^xi	56.064 (19)	Sr2^xxiii—Sb2—Sr3^iv	134.96 (2)
Sb3^x—Sr3—In1ⁱⁱ	86.35 (2)	Sr1^x—Sb2—Sr3^iv	65.730 (16)
Sb4—Sr3—In1ⁱⁱ	101.74 (2)	Sr1^xxiii—Sb2—Sr3^iv	146.491 (16)
Sb5ⁱⁱ—Sr3—In1ⁱⁱ	46.846 (13)	Sr3^xxii—Sb2—Sr3^iv	126.84 (4)
Sb5—Sr3—In1ⁱⁱ	127.60 (2)	Sr1—Sb3—Sr6	142.80 (2)
Sb1^iv—Sr3—In1ⁱⁱ	46.356 (16)	Sr1—Sb3—Sr5^xi	85.97 (2)
Sb2ⁱⁱ—Sr3—In1ⁱⁱ	142.33 (2)	Sr6—Sb3—Sr5^xi	85.23 (3)
Sr1^xi—Sr3—In1ⁱⁱ	93.33 (2)	Sr1—Sb3—Sr3ⁱ	111.91 (3)
Sb3^x—Sr3—Sr4^vi	111.73 (3)	Sr6—Sb3—Sr3ⁱ	94.30 (3)
Sb4—Sr3—Sr4^vi	59.55 (2)	Sr5^xi—Sb3—Sr3ⁱ	147.30 (2)
Sb5ⁱⁱ—Sr3—Sr4^vi	139.37 (3)	Sr1—Sb3—Sr1^iv	143.14 (2)
Sb5—Sr3—Sr4^vi	54.898 (18)	Sr6—Sb3—Sr1^iv	69.655 (18)
Sb1^iv—Sr3—Sr4^vi	114.49 (3)	Sr5^xi—Sb3—Sr1^iv	79.40 (2)
Sb2ⁱⁱ—Sr3—Sr4^vi	50.027 (18)	Sr3ⁱ—Sb3—Sr1^iv	69.94 (2)
Sr1^xi—Sr3—Sr4^vi	104.45 (3)	Sr1—Sb3—Sr2^vi	69.75 (2)
In1ⁱⁱ—Sr3—Sr4^vi	159.54 (3)	Sr6—Sb3—Sr2^vi	73.047 (18)
Sb3^x—Sr3—Sr4^iv	66.24 (2)	Sr5^xi—Sb3—Sr2^vi	75.85 (2)
Sb4—Sr3—Sr4^iv	113.57 (3)	Sr3ⁱ—Sb3—Sr2^vi	135.22 (2)
Sb5ⁱⁱ—Sr3—Sr4^iv	104.19 (2)	Sr1^iv—Sb3—Sr2^vi	136.45 (2)
Sb5—Sr3—Sr4^iv	66.52 (2)	Sr1—Sb3—Sr2^iv	76.32 (2)
Sb1^iv—Sr3—Sr4^iv	52.740 (17)	Sr6—Sb3—Sr2^iv	135.47 (2)
Sb2ⁱⁱ—Sr3—Sr4^iv	149.83 (3)	Sr5^xi—Sb3—Sr2^iv	76.01 (2)
Sr1^xi—Sr3—Sr4^iv	118.91 (3)	Sr3ⁱ—Sb3—Sr2^iv	81.83 (2)
In1ⁱⁱ—Sr3—Sr4^iv	61.098 (17)	Sr1^iv—Sb3—Sr2^iv	67.40 (2)
Sr4^vi—Sr3—Sr4^iv	116.26 (2)	Sr2^vi—Sb3—Sr2^iv	136.90 (2)
Sb3^x—Sr3—Sr4	126.02 (3)	Sr1—Sb3—Sr4^v	76.78 (2)
Sb4—Sr3—Sr4	56.930 (19)	Sr6—Sb3—Sr4^v	91.57 (2)
Sb5ⁱⁱ—Sr3—Sr4	65.64 (2)	Sr5^xi—Sb3—Sr4^v	146.78 (2)
Sb5—Sr3—Sr4	128.28 (3)	Sr3ⁱ—Sb3—Sr4^v	65.87 (2)
Sb1^iv—Sr3—Sr4	109.53 (2)	Sr1^iv—Sb3—Sr4^v	130.15 (2)
Sb2ⁱⁱ—Sr3—Sr4	48.779 (16)	Sr2^vi—Sb3—Sr4^v	71.615 (18)
Sr1^xi—Sr3—Sr4	69.37 (2)	Sr2^iv—Sb3—Sr4^v	125.39 (2)
In1ⁱⁱ—Sr3—Sr4	103.30 (2)	Sb4^vi—Sb4—Sr3	122.558 (17)
Sr4^vi—Sr3—Sr4	74.40 (2)	Sb4^vi—Sb4—Sr1	120.068 (16)
Sr4^iv—Sr3—Sr4	161.36 (3)	Sr3—Sb4—Sr1	117.22 (2)
Sb3^x—Sr3—Sr5^xi	112.48 (2)	Sb4^vi—Sb4—Sr4	67.693 (18)
Sb4—Sr3—Sr5^xi	61.64 (2)	Sr3—Sb4—Sr4	73.72 (2)
Sb5ⁱⁱ—Sr3—Sr5^xi	143.80 (3)	Sr1—Sb4—Sr4	137.42 (2)
Sb5—Sr3—Sr5^xi	50.174 (18)	Sb4^vi—Sb4—Sr2	66.976 (18)
Sb1^iv—Sr3—Sr5^xi	58.031 (18)	Sr3—Sb4—Sr2	142.01 (2)
Sb2ⁱⁱ—Sr3—Sr5^xi	112.77 (2)	Sr1—Sb4—Sr2	69.34 (2)
Sr1^xi—Sr3—Sr5^xi	160.88 (3)	Sr4—Sb4—Sr2	78.488 (19)
In1ⁱⁱ—Sr3—Sr5^xi	102.23 (2)	Sb4^vi—Sb4—Sr2^vi	66.620 (19)
Sr4^vi—Sr3—Sr5^xi	62.750 (19)	Sr3—Sb4—Sr2^vi	135.10 (2)
Sr4^iv—Sr3—Sr5^xi	61.549 (19)	Sr1—Sb4—Sr2^vi	69.12 (2)
Sr4—Sr3—Sr5^xi	116.71 (2)	Sr4—Sb4—Sr2^vi	134.29 (2)
Sb2ⁱⁱ—Sr4—Sb1	176.25 (3)	Sr2—Sb4—Sr2^vi	82.87 (3)
Sb2ⁱⁱ—Sr4—Sb5^vi	93.68 (2)	Sb4^vi—Sb4—Sr4^vi	65.767 (19)
Sb1—Sr4—Sb5^vi	87.72 (2)	Sr3—Sb4—Sr4^vi	70.16 (2)
Sb2ⁱⁱ—Sr4—Sb4	83.95 (2)	Sr1—Sb4—Sr4^vi	137.39 (2)
Sb1—Sr4—Sb4	92.73 (2)	Sr4—Sb4—Sr4^vi	85.09 (3)
Sb5^vi—Sr4—Sb4	139.72 (3)	Sr2—Sb4—Sr4^vi	132.72 (2)
Sb2ⁱⁱ—Sr4—Sb4^vi	83.10 (2)	Sr2^vi—Sb4—Sr4^vi	77.696 (18)
Sb1—Sr4—Sb4^vi	93.35 (2)	Sb4^vi—Sb4—Sr5^vii	123.70 (3)
Sb5^vi—Sr4—Sb4^vi	93.20 (2)	Sr3—Sb4—Sr5^vii	76.36 (2)
Sb4—Sr4—Sb4^vi	46.539 (18)	Sr1—Sb4—Sr5^vii	73.45 (2)
Sb2ⁱⁱ—Sr4—Sr3^vi	58.277 (18)	Sr4—Sb4—Sr5^vii	69.68 (2)
Sb1—Sr4—Sr3^vi	120.14 (3)	Sr2—Sb4—Sr5^vii	69.94 (2)
Sb5^vi—Sr4—Sr3^vi	56.052 (19)	Sr2^vi—Sb4—Sr5^vii	139.57 (3)
Sb4—Sr4—Sr3^vi	90.09 (2)	Sr4^vi—Sb4—Sr5^vii	142.60 (3)
Sb4^vi—Sr4—Sr3^vi	50.294 (18)	Sb4^vi—Sb4—Sr5^xi	120.45 (2)
Sb2ⁱⁱ—Sr4—Sr3ⁱⁱ	126.62 (3)	Sr3—Sb4—Sr5^xi	71.66 (2)
Sb1—Sr4—Sr3ⁱⁱ	56.65 (2)	Sr1—Sb4—Sr5^xi	74.31 (2)
Sb5^vi—Sr4—Sr3ⁱⁱ	94.16 (2)	Sr4—Sb4—Sr5^xi	141.95 (3)
Sb4—Sr4—Sr3ⁱⁱ	119.38 (3)	Sr2—Sb4—Sr5^xi	139.55 (3)
Sb4^vi—Sr4—Sr3ⁱⁱ	148.70 (3)	Sr2^vi—Sb4—Sr5^xi	67.85 (2)
Sr3^vi—Sr4—Sr3ⁱⁱ	149.77 (3)	Sr4^vi—Sb4—Sr5^xi	68.76 (2)
Sb2ⁱⁱ—Sr4—In1^viii	136.56 (3)	Sr5^vii—Sb4—Sr5^xi	115.834 (14)
Sb1—Sr4—In1^viii	45.916 (16)	In1—Sb5—Sr5^xi	68.55 (2)
Sb5^vi—Sr4—In1^viii	45.685 (15)	In1—Sb5—Sr1^x	123.97 (2)
Sb4—Sr4—In1^viii	135.19 (3)	Sr5^xi—Sb5—Sr1^x	136.52 (2)
Sb4^vi—Sr4—In1^viii	109.33 (2)	In1—Sb5—Sr6^ix	71.51 (2)
Sr3^vi—Sr4—In1^viii	97.15 (2)	Sr5^xi—Sb5—Sr6^ix	139.88 (2)
Sr3ⁱⁱ—Sr4—In1^viii	57.947 (17)	Sr1^x—Sb5—Sr6^ix	66.94 (2)
Sb2ⁱⁱ—Sr4—Sb3^xi	82.68 (2)	In1—Sb5—Sr3^iv	73.754 (18)
Sb1—Sr4—Sb3^xi	101.02 (2)	Sr5^xi—Sb5—Sr3^iv	79.58 (2)
Sb5^vi—Sr4—Sb3^xi	78.28 (2)	Sr1^x—Sb5—Sr3^iv	67.577 (18)
Sb4—Sr4—Sb3^xi	140.45 (3)	Sr6^ix—Sb5—Sr3^iv	85.992 (18)
Sb4^vi—Sr4—Sb3^xi	162.89 (3)	In1—Sb5—Sr4^vi	76.562 (19)
Sr3^vi—Sr4—Sb3^xi	113.45 (2)	Sr5^xi—Sb5—Sr4^vi	77.52 (2)
Sr3ⁱⁱ—Sr4—Sb3^xi	47.883 (17)	Sr1^x—Sb5—Sr4^vi	142.88 (2)
In1^viii—Sr4—Sb3^xi	75.34 (2)	Sr6^ix—Sb5—Sr4^vi	96.94 (2)
Sb2ⁱⁱ—Sr4—Sr3	56.602 (18)	Sr3^iv—Sb5—Sr4^vi	147.51 (2)
Sb1—Sr4—Sr3	122.18 (3)	In1—Sb5—Sr3	134.79 (2)
Sb5^vi—Sr4—Sr3	150.04 (3)	Sr5^xi—Sb5—Sr3	75.94 (2)
Sb4—Sr4—Sr3	49.353 (18)	Sr1^x—Sb5—Sr3	101.00 (2)
Sb4^vi—Sr4—Sr3	87.23 (2)	Sr6^ix—Sb5—Sr3	139.64 (2)
Sr3^vi—Sr4—Sr3	103.91 (2)	Sr3^iv—Sb5—Sr3	126.475 (18)
Sr3ⁱⁱ—Sr4—Sr3	100.919 (19)	Sr4^vi—Sb5—Sr3	69.05 (2)
In1^viii—Sr4—Sr3	158.65 (2)	In1—Sb5—Sr2^xi	123.18 (2)
Sb3^xi—Sr4—Sr3	92.84 (2)	Sr5^xi—Sb5—Sr2^xi	143.65 (2)
Sb2ⁱⁱ—Sr4—Sr5^vii	119.86 (2)	Sr1^x—Sb5—Sr2^xi	69.65 (2)
Sb1—Sr4—Sr5^vii	59.208 (19)	Sr6^ix—Sb5—Sr2^xi	65.912 (19)
Sb5^vi—Sr4—Sr5^vii	145.92 (3)	Sr3^iv—Sb5—Sr2^xi	135.39 (2)
Sb4—Sr4—Sr5^vii	57.395 (18)	Sr4^vi—Sb5—Sr2^xi	73.244 (19)
Sb4^vi—Sr4—Sr5^vii	96.50 (2)	Sr3—Sb5—Sr2^xi	73.76 (2)
Sr3^vi—Sr4—Sr5^vii	146.27 (3)	Sb1^vi—In1—Sb1^xix	97.92 (3)
Sr3ⁱⁱ—Sr4—Sr5^vii	62.03 (2)	Sb1^vi—In1—Sb5	107.767 (15)
In1^viii—Sr4—Sr5^vii	100.44 (2)	Sb1^xix—In1—Sb5	109.632 (15)
Sb3^xi—Sr4—Sr5^vii	98.80 (2)	Sb1^vi—In1—Sb5^xvi	109.632 (15)
Sr3—Sr4—Sr5^vii	63.297 (19)	Sb1^xix—In1—Sb5^xvi	107.768 (15)
Sb2ⁱⁱ—Sr4—Sr5^ix	119.92 (2)	Sb5—In1—Sb5^xvi	121.55 (3)
Sb1—Sr4—Sr5^ix	58.662 (19)	Sb1^vi—In1—Sr5^xi	71.52 (2)
Sb5^vi—Sr4—Sr5^ix	49.929 (19)	Sb1^xix—In1—Sr5^xi	67.92 (2)
Sb4—Sr4—Sr5^ix	97.03 (2)	Sb5—In1—Sr5^xi	61.189 (19)
Sb4^vi—Sr4—Sr5^ix	58.800 (18)	Sb5^xvi—In1—Sr5^xi	175.69 (2)
Sr3^vi—Sr4—Sr5^ix	61.65 (2)	Sb1^vi—In1—Sr5^xx	67.92 (2)
Sr3ⁱⁱ—Sr4—Sr5^ix	104.92 (2)	Sb1^xix—In1—Sr5^xx	71.52 (2)
In1^viii—Sr4—Sr5^ix	50.828 (15)	Sb5—In1—Sr5^xx	175.69 (2)
Sb3^xi—Sr4—Sr5^ix	121.84 (2)	Sb5^xvi—In1—Sr5^xx	61.190 (19)
Sr3—Sr4—Sr5^ix	145.18 (3)	Sr5^xi—In1—Sr5^xx	116.30 (4)
Sr5^vii—Sr4—Sr5^ix	109.80 (3)	Sb1^vi—In1—Sr6^ix	131.039 (16)
Sb3^v—Sr5—Sb5^v	172.93 (3)	Sb1^xix—In1—Sr6^ix	131.039 (16)
Sb3^v—Sr5—In1^xii	125.08 (3)	Sb5—In1—Sr6^ix	60.776 (17)
Sb5^v—Sr5—In1^xii	50.264 (19)	Sb5^xvi—In1—Sr6^ix	60.775 (17)
Sb3^v—Sr5—Sb1^xiii	93.22 (2)	Sr5^xi—In1—Sr6^ix	121.848 (18)
Sb5^v—Sr5—Sb1^xiii	86.23 (2)	Sr5^xx—In1—Sr6^ix	121.848 (18)
In1^xii—Sr5—Sb1^xiii	47.861 (14)	Sb1^vi—In1—Sr3^xviii	60.794 (16)
Sb3^v—Sr5—Sb4^xiv	92.45 (2)	Sb1^xix—In1—Sr3^xviii	142.55 (2)
Sb5^v—Sr5—Sb4^xiv	93.55 (2)	Sb5—In1—Sr3^xviii	106.35 (2)
In1^xii—Sr5—Sb4^xiv	97.74 (2)	Sb5^xvi—In1—Sr3^xviii	59.400 (16)
Sb1^xiii—Sr5—Sb4^xiv	62.555 (16)	Sr5^xi—In1—Sr3^xviii	123.881 (18)
Sb3^v—Sr5—Sb1^xiv	85.95 (2)	Sr5^xx—In1—Sr3^xviii	71.844 (18)
Sb5^v—Sr5—Sb1^xiv	98.49 (2)	Sr6^ix—In1—Sr3^xviii	76.528 (16)
In1^xii—Sr5—Sb1^xiv	148.75 (3)	Sb1^vi—In1—Sr3^iv	142.55 (2)
Sb1^xiii—Sr5—Sb1^xiv	145.45 (2)	Sb1^xix—In1—Sr3^iv	60.794 (17)
Sb4^xiv—Sr5—Sb1^xiv	82.951 (18)	Sb5—In1—Sr3^iv	59.401 (16)
Sb3^v—Sr5—Sb1^xv	90.67 (2)	Sb5^xvi—In1—Sr3^iv	106.35 (2)
Sb5^v—Sr5—Sb1^xv	82.44 (2)	Sr5^xi—In1—Sr3^iv	71.844 (18)
In1^xii—Sr5—Sb1^xv	46.585 (14)	Sr5^xx—In1—Sr3^iv	123.881 (18)
Sb1^xiii—Sr5—Sb1^xv	72.325 (16)	Sr6^ix—In1—Sr3^iv	76.528 (16)
Sb4^xiv—Sr5—Sb1^xv	134.87 (2)	Sr3^xviii—In1—Sr3^iv	153.06 (3)
Sb1^xiv—Sr5—Sb1^xv	142.17 (2)	Sb1^vi—In1—Sr4^xix	134.58 (2)
Sb3^v—Sr5—Sb4^v	87.26 (2)	Sb1^xix—In1—Sr4^xix	55.642 (15)
Sb5^v—Sr5—Sb4^v	90.21 (2)	Sb5—In1—Sr4^xix	115.55 (2)
In1^xii—Sr5—Sb4^v	112.67 (2)	Sb5^xvi—In1—Sr4^xix	57.754 (16)
Sb1^xiii—Sr5—Sb4^v	154.60 (2)	Sr5^xi—In1—Sr4^xix	118.359 (18)
Sb4^xiv—Sr5—Sb4^v	142.84 (2)	Sr5^xx—In1—Sr4^xix	68.629 (18)
Sb1^xiv—Sr5—Sb4^v	59.942 (15)	Sr6^ix—In1—Sr4^xix	83.985 (17)
Sb1^xv—Sr5—Sb4^v	82.274 (16)	Sr3^xviii—In1—Sr4^xix	115.891 (17)
Sb3^v—Sr5—Sr4^xiv	121.62 (3)	Sr3^iv—In1—Sr4^xix	60.955 (16)
Sb5^v—Sr5—Sr4^xiv	65.22 (2)	Sb1^vi—In1—Sr4^vi	55.642 (15)
In1^xii—Sr5—Sr4^xiv	106.92 (3)	Sb1^xix—In1—Sr4^vi	134.58 (2)
Sb1^xiii—Sr5—Sr4^xiv	104.82 (2)	Sb5—In1—Sr4^vi	57.753 (16)
Sb4^xiv—Sr5—Sr4^xiv	52.922 (17)	Sb5^xvi—In1—Sr4^vi	115.55 (2)
Sb1^xiv—Sr5—Sr4^xiv	49.300 (17)	Sr5^xi—In1—Sr4^vi	68.629 (18)
Sb1^xv—Sr5—Sr4^xiv	147.65 (3)	Sr5^xx—In1—Sr4^vi	118.359 (18)
Sb4^v—Sr5—Sr4^xiv	96.39 (2)	Sr6^ix—In1—Sr4^vi	83.985 (17)
Sb3^v—Sr5—Sr2^xv	56.484 (19)	Sr3^xviii—In1—Sr4^vi	60.955 (16)
Sb5^v—Sr5—Sr2^xv	116.98 (2)	Sr3^iv—In1—Sr4^vi	115.891 (17)
In1^xii—Sr5—Sr2^xv	94.85 (2)	Sr4^xix—In1—Sr4^vi	167.97 (3)
Sb1^xiii—Sr5—Sr2^xv	107.30 (2)

Symmetry codes: (i) −x+1/2, −y+1/2, z+1/2; (ii) x+1/2, −y+1/2, z; (iii) x+1/2, y−1/2, z+1/2; (iv) x−1/2, −y+1/2, z; (v) −x+1, y, z+1/2; (vi) −x+1, −y, z; (vii) −x+3/2, −y+1/2, z−1/2; (viii) x+1, y, z; (ix) x, −y, z−1/2; (x) −x+1/2, −y+1/2, z−1/2; (xi) −x+1, y, z−1/2; (xii) x+1, −y, z+1/2; (xiii) −x+2, y, z+1/2; (xiv) −x+3/2, −y+1/2, z+1/2; (xv) x, −y, z+1/2; (xvi) −x, −y, z; (xvii) −x, y, z+1/2; (xviii) −x+1/2, y−1/2, z; (xix) x−1, y, z; (xx) x−1, −y, z−1/2; (xxi) −x+2, y, z−1/2; (xxii) −x+1/2, y+1/2, z; (xxiii) x−1/2, y+1/2, z−1/2.

Experimental details

Crystal data
Chemical formula	Sr₁₁InSb₉
M_r	2174.39
Crystal system, space group	Orthorhombic, Iba2
Temperature (K)	120
a, b, c (Å)	12.3885 (13), 13.1003 (14), 17.4966 (18)
V (Å³)	2839.6 (5)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	29.64
Crystal size (mm)	0.08 × 0.05 × 0.04

Data collection
Diffractometer	Bruker SMART APEX
Absorption correction	Multi-scan (SADABS; Sheldrick, 2003)
T_min, T_max	0.172, 0.308
No. of measured, independent and observed [I > 2σ(I)] reflections	15129, 3124, 2972
R_int	0.046
(sin θ/λ)_max (Å⁻¹)	0.641

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.022, 0.034, 0.90
No. of reflections	3124
No. of parameters	99
No. of restraints	1
Δρ_max, Δρ_min (e Å⁻³)	0.90, −1.01
Absolute structure	Flack (1983), 1496 Friedel pairs
Absolute structure parameter	0.017 (6)

Computer programs: SMART (Bruker, 2002), SAINT (Bruker, 2002), XP in SHELXTL (Bruker, 2002).

Selected bond lengths (Å) top

Sr1—Sb3	3.1806 (9)	Sr3—Sb1^iv	3.5237 (10)
Sr1—Sb4	3.2466 (10)	Sr3—Sb2ⁱⁱ	3.5434 (9)
Sr1—Sb5ⁱ	3.3742 (10)	Sr4—Sb2ⁱⁱ	3.1924 (10)
Sr1—Sb3ⁱⁱ	3.3932 (9)	Sr4—Sb1	3.3574 (10)
Sr1—Sb2ⁱⁱⁱ	3.4589 (9)	Sr4—Sb5^v	3.4647 (10)
Sr1—Sb1^iv	3.5094 (10)	Sr4—Sb4	3.5726 (10)
Sr2—Sb2ⁱⁱⁱ	3.2082 (10)	Sr4—Sb4^v	3.6246 (10)
Sr2—Sb1	3.3012 (10)	Sr5—Sb3^vii	3.2068 (11)
Sr2—Sb4	3.6040 (10)	Sr5—Sb5^vii	3.3398 (11)
Sr2—Sb4^v	3.6137 (10)	Sr5—In1^viii	3.5475 (9)
Sr2—Sb3^v	3.6170 (9)	Sr5—Sb1^ix	3.6506 (9)
Sr2—Sb3ⁱⁱ	3.6409 (10)	Sr6—Sb3	3.1990 (5)
Sr3—Sb3^vi	3.2340 (10)	Sr6—Sb3^x	3.1990 (5)
Sr3—Sb4	3.2347 (10)	Sr6—Sb5^xi	3.4575 (9)
Sr3—Sb5ⁱⁱ	3.4584 (9)	Sb1—In1^xii	2.9213 (7)
Sr3—Sb5	3.5131 (9)	Sb4—Sb4^v	2.8437 (9)

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

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