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Acta Cryst. (2010). E66, m535-m536    [ doi:10.1107/S1600536810012559 ]

Octakis(2-chlorobenzyl)di-[mu]2-hydroxido-di-[mu]3-oxido-bis(2-phenylacetato)tetratin(IV)

W.-B. Peng, G.-Q. Li, H. Yin and X. Zhao

Abstract top

The asymmetric unit of the title compound, [Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2], comprises one-half of the centrosymmetric tin(IV) complex. [mu]3-Oxide and [mu]2-hydroxide bridges link the four five-coordinate SnIV atoms to generate three fused four-membered Sn-O-Sn-O rings in a ladder-like structure. The two endocyclic Sn atoms each bind to two [mu]3-oxide anions and a [mu]2-hydroxide ligand, together with two 2-chlorobenzyl groups. The exocyclic Sn atoms each carry a monodentate phenylacetate ligand, two 2-chlorobenzyl groups, and [mu]3-oxide and [mu]2-hydroxide ligands. Both types of Sn atoms adopt a distorted trigonal-bipyramidal coordination geometry. The molecular conformation is stabilized by intramolecular O-H...O interactions involving the [mu]2-hydroxide ligands and the C=O group of the phenylacetate ligand.

Comment top

Recently considerable attention has been paid to organotin(IV) derivatives, owing to their high in vitro antifungal activities against some medically important fungi (Ruzicka et al., 2002; Nath et al., 1999). As a continuation of our study of organotin compounds, we present here the synthesis and crystal structure of the title compound (I).

The title compound (Fig. 1, Table 1) is a centrosymmetric dimer and displays a ladder type structural motif. The ladder consists of four tin centers held together by two µ3-oxygen atoms. According to their different coordination environments, the four tin atoms can be divided into two types, viz. two endocyclic and two exocyclic. The endo- and exocyclic tin centers are linked by µ2-hydroxide anions and µ3-oxide anions. Each of the tin atoms is five-coordinate, adopting approximate trigonal bipyramidal coordination. The 2-phenylacetato ligands coordinate to the exocyclic tin atoms in a monodentate fashion, and the molecular conformation is stabilized by intramolecular O3—H3···O1 hydrogen bonds (Table 2). The crystal structure of a similiar compound has been reported recently (Wu et al., 2009).

Related literature top

For the antifungal activity of organotin compounds, see: Ruzicka et al. (2002); Nath et al. (1999). For a related structure, see: Wu et al. (2009).

Experimental top

The reaction was carried out under a nitrogen atmosphere. 2-phenylacetic acid (2 mmol) and sodium ethoxide (2.2 mmol) were added to a stirred solution of benzene (30 ml) in a Schlenk flask and stirred for 0.5 h. Bis(2-chlorobenzyl)dichlorostannane (4 mmol) was then added to the reactor. After stirring for 10 h at 323 K, a white paste was obtained and filtered off. Colourless crystals suitable for X-ray analysis were obtained by slow evaporation of dichloromethane/methanol (1:1 v/v) solution over a period of six days (yield 86%. m.p. 438 K ).

Refinement top

H atoms were positioned geometrically, with C—H = 0.93, 0.97 and O—H = 0.82 Å for aromatic, methylene and hydroxyl H atoms, respectively, and constrained to ride on their parent atoms, with Uiso(H) = 1.2 Ueq(C) or 1.5 Ueq(O) for hydroxyl groups

Computing details top

Data collection: SMART (Siemens, 1996); cell refinement: SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. The molecular structure of (I), showing 50% probability displacement ellipsoids. H atoms have been omitted for clarity.
Octakis(2-chlorobenzyl)di-µ2-hydroxido-di-µ3-oxido- bis(2-phenylacetato)tetratin(IV) top
Crystal data top
[Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2]Z = 1
Mr = 1815.59F(000) = 896
Triclinic, P1Dx = 1.644 Mg m−3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 10.7095 (14) ÅCell parameters from 4098 reflections
b = 11.4846 (16) Åθ = 2.3–27.0°
c = 15.2412 (18) ŵ = 1.69 mm−1
α = 98.311 (2)°T = 298 K
β = 90.982 (1)°Block, colourless
γ = 98.404 (2)°0.49 × 0.48 × 0.40 mm
V = 1833.6 (4) Å3
Data collection top
Siemens SMART CCD area-detector
diffractometer		6322 independent reflections
Radiation source: fine-focus sealed tube4437 reflections with I > 2σ(I)
graphiteRint = 0.027
φ and ω scansθmax = 25.0°, θmin = 1.4°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)		h = −12→12
Tmin = 0.491, Tmax = 0.551k = −7→13
9422 measured reflectionsl = −18→17
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.040Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.121H-atom parameters constrained
S = 1.05 w = 1/[σ2(Fo2) + (0.0507P)2 + 2.5952P]
where P = (Fo2 + 2Fc2)/3
6322 reflections(Δ/σ)max = 0.001
415 parametersΔρmax = 1.18 e Å−3
0 restraintsΔρmin = −0.70 e Å−3
Crystal data top
[Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2]γ = 98.404 (2)°
Mr = 1815.59V = 1833.6 (4) Å3
Triclinic, P1Z = 1
a = 10.7095 (14) ÅMo Kα radiation
b = 11.4846 (16) ŵ = 1.69 mm−1
c = 15.2412 (18) ÅT = 298 K
α = 98.311 (2)°0.49 × 0.48 × 0.40 mm
β = 90.982 (1)°
Data collection top
Siemens SMART CCD area-detector
diffractometer		6322 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)		4437 reflections with I > 2σ(I)
Tmin = 0.491, Tmax = 0.551Rint = 0.027
9422 measured reflectionsθmax = 25.0°
Refinement top
R[F2 > 2σ(F2)] = 0.040H-atom parameters constrained
wR(F2) = 0.121Δρmax = 1.18 e Å−3
S = 1.05Δρmin = −0.70 e Å−3
6322 reflectionsAbsolute structure: ?
415 parametersFlack parameter: ?
0 restraintsRogers parameter: ?
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Sn20.37891 (4)0.50151 (4)0.43671 (3)0.03405 (14)
Sn10.52617 (4)0.29250 (4)0.32149 (3)0.03909 (15)
O10.2765 (5)0.2430 (7)0.1747 (4)0.108 (3)
Cl10.7318 (2)0.0520 (2)0.31794 (16)0.0817 (7)
Cl30.1945 (2)0.7643 (2)0.47210 (16)0.0889 (7)
O40.5297 (4)0.4138 (3)0.4439 (2)0.0333 (9)
O30.3714 (4)0.3739 (4)0.3168 (3)0.0457 (11)
H30.32300.33820.27630.069*
C240.1584 (6)0.3003 (6)0.4525 (5)0.0455 (16)
C300.3829 (6)0.6432 (6)0.3587 (4)0.0424 (15)
H30A0.40720.71960.39570.051*
H30B0.44310.63490.31220.051*
O20.4756 (5)0.2118 (4)0.1896 (3)0.0555 (13)
C260.1527 (8)0.0966 (8)0.4741 (7)0.077 (3)
H260.17340.04190.50920.093*
C200.4618 (10)−0.1761 (7)0.1799 (6)0.077 (3)
H200.4560−0.24250.13630.092*
C360.2531 (6)0.6347 (6)0.3195 (4)0.0416 (15)
C20.3728 (9)0.1342 (8)0.0521 (5)0.078 (3)
H2A0.44920.16570.02500.094*
H2B0.37660.05120.05590.094*
C320.0369 (8)0.6721 (9)0.3344 (7)0.087 (3)
H32−0.02330.70940.36610.104*
C230.1962 (6)0.4311 (6)0.4814 (5)0.0479 (17)
H23A0.19750.44700.54570.057*
H23B0.13280.47280.45900.057*
C310.1583 (7)0.6850 (7)0.3675 (5)0.059 (2)
C170.4781 (7)0.0212 (6)0.3103 (4)0.0475 (17)
C180.5837 (7)−0.0225 (6)0.2777 (5)0.0513 (18)
C10.3705 (8)0.2012 (7)0.1456 (5)0.058 (2)
C160.4855 (7)0.1312 (6)0.3779 (4)0.0505 (18)
H16A0.55080.12980.42260.061*
H16B0.40580.13040.40730.061*
C280.0522 (8)0.1387 (11)0.3465 (6)0.089 (3)
H280.00670.11130.29320.107*
C250.1922 (7)0.2164 (7)0.4999 (5)0.0556 (19)
C220.3625 (8)−0.0376 (7)0.2728 (5)0.063 (2)
H220.2887−0.00980.29170.075*
C350.2176 (8)0.5672 (7)0.2378 (5)0.064 (2)
H350.27730.53190.20410.076*
C290.0866 (7)0.2605 (8)0.3724 (5)0.067 (2)
H290.06280.31450.33780.081*
C190.5779 (9)−0.1213 (7)0.2139 (5)0.068 (2)
H190.6511−0.14980.19440.082*
C210.3545 (9)−0.1354 (7)0.2086 (6)0.074 (3)
H210.2761−0.17360.18490.089*
Cl40.2865 (2)0.2618 (2)0.59644 (16)0.0855 (7)
Cl20.5677 (3)0.5040 (3)0.1524 (2)0.1111 (10)
C150.8327 (7)0.2995 (7)0.1657 (5)0.064 (2)
H150.86990.26300.20780.077*
C100.7379 (7)0.3672 (6)0.1912 (4)0.0533 (19)
C90.7019 (6)0.3859 (6)0.2859 (4)0.0531 (19)
H9A0.70040.47040.30310.064*
H9B0.76870.36470.32150.064*
C30.2613 (8)0.1411 (7)−0.0071 (4)0.058 (2)
C110.6853 (8)0.4162 (7)0.1265 (5)0.065 (2)
C140.8730 (9)0.2849 (8)0.0798 (7)0.083 (3)
H140.93810.24120.06470.100*
C40.2413 (9)0.2473 (8)−0.0274 (6)0.078 (3)
H40.29430.3160−0.00240.093*
C270.0837 (9)0.0588 (9)0.3973 (8)0.090 (3)
H270.0577−0.02220.37940.108*
C130.8155 (11)0.3359 (9)0.0172 (6)0.094 (4)
H130.84120.3257−0.04100.112*
C80.1816 (11)0.0414 (8)−0.0418 (6)0.099 (3)
H80.1937−0.0325−0.02790.119*
C70.0792 (11)0.0515 (12)−0.0997 (7)0.106 (4)
H70.0231−0.0159−0.12310.127*
C120.7206 (10)0.4017 (9)0.0394 (6)0.087 (3)
H120.68110.4357−0.00320.104*
C340.0942 (10)0.5521 (9)0.2061 (7)0.087 (3)
H340.07110.50610.15130.105*
C330.0056 (10)0.6040 (11)0.2544 (9)0.103 (4)
H33−0.07740.59250.23230.124*
C50.1443 (11)0.2550 (11)−0.0843 (7)0.098 (3)
H50.13340.3291−0.09850.118*
C60.0637 (10)0.1576 (14)−0.1206 (6)0.101 (4)
H6−0.00180.1643−0.15950.121*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Sn20.0364 (2)0.0383 (3)0.0277 (2)0.00952 (19)−0.00245 (17)0.00236 (18)
Sn10.0458 (3)0.0380 (3)0.0327 (3)0.0095 (2)0.00195 (19)−0.00089 (19)
O10.050 (4)0.200 (8)0.062 (4)0.038 (4)−0.011 (3)−0.038 (4)
Cl10.0591 (13)0.0889 (17)0.0930 (17)0.0115 (11)0.0016 (12)−0.0006 (13)
Cl30.0980 (18)0.0925 (18)0.0805 (16)0.0418 (14)0.0156 (13)−0.0022 (13)
O40.040 (2)0.035 (2)0.025 (2)0.0114 (18)−0.0045 (17)0.0011 (17)
O30.046 (3)0.049 (3)0.038 (2)0.014 (2)−0.009 (2)−0.012 (2)
C240.035 (4)0.048 (4)0.052 (4)0.002 (3)0.007 (3)0.009 (3)
C300.043 (4)0.046 (4)0.041 (4)0.013 (3)0.000 (3)0.011 (3)
O20.072 (3)0.050 (3)0.042 (3)0.010 (3)−0.007 (3)−0.005 (2)
C260.071 (6)0.062 (6)0.104 (8)0.009 (5)0.025 (5)0.025 (5)
C200.111 (8)0.047 (5)0.067 (6)0.004 (5)−0.004 (6)−0.001 (4)
C360.046 (4)0.039 (4)0.042 (4)0.003 (3)−0.006 (3)0.016 (3)
C20.106 (7)0.085 (6)0.041 (5)0.029 (5)−0.004 (4)−0.011 (4)
C320.054 (5)0.109 (8)0.112 (8)0.016 (5)−0.001 (5)0.061 (7)
C230.041 (4)0.056 (4)0.048 (4)0.009 (3)0.008 (3)0.009 (3)
C310.047 (4)0.065 (5)0.074 (5)0.014 (4)−0.002 (4)0.031 (4)
C170.059 (4)0.038 (4)0.048 (4)0.008 (3)0.006 (3)0.011 (3)
C180.057 (4)0.049 (4)0.048 (4)0.009 (3)0.002 (3)0.005 (3)
C10.075 (6)0.056 (5)0.036 (4)0.004 (4)−0.009 (4)−0.005 (3)
C160.068 (5)0.038 (4)0.048 (4)0.011 (3)0.015 (4)0.008 (3)
C280.067 (6)0.115 (9)0.064 (6)−0.026 (6)0.010 (5)−0.022 (6)
C250.046 (4)0.056 (5)0.065 (5)0.002 (4)0.019 (4)0.011 (4)
C220.062 (5)0.054 (5)0.073 (5)0.008 (4)0.006 (4)0.011 (4)
C350.082 (6)0.059 (5)0.049 (5)−0.002 (4)−0.021 (4)0.018 (4)
C290.055 (5)0.077 (6)0.063 (5)−0.001 (4)0.007 (4)−0.002 (4)
C190.089 (6)0.055 (5)0.063 (5)0.027 (5)0.016 (5)−0.001 (4)
C210.084 (7)0.050 (5)0.080 (6)−0.012 (5)−0.013 (5)0.006 (4)
Cl40.0702 (14)0.1108 (19)0.0823 (16)0.0166 (13)−0.0149 (12)0.0361 (14)
Cl20.127 (2)0.114 (2)0.118 (2)0.0578 (18)0.0473 (18)0.0594 (18)
C150.070 (5)0.051 (5)0.070 (5)0.011 (4)0.019 (4)0.002 (4)
C100.063 (5)0.051 (4)0.039 (4)−0.011 (4)0.015 (3)−0.002 (3)
C90.051 (4)0.057 (5)0.043 (4)−0.005 (3)0.007 (3)−0.005 (3)
C30.079 (5)0.064 (5)0.032 (4)0.019 (4)−0.001 (4)−0.003 (3)
C110.081 (6)0.053 (5)0.061 (5)0.010 (4)0.019 (4)0.010 (4)
C140.098 (7)0.066 (6)0.082 (7)0.008 (5)0.041 (6)−0.003 (5)
C40.099 (7)0.070 (6)0.064 (6)0.020 (5)0.000 (5)0.002 (5)
C270.079 (7)0.064 (6)0.115 (9)−0.015 (5)0.043 (7)−0.007 (6)
C130.144 (10)0.074 (7)0.054 (6)−0.007 (7)0.045 (6)−0.002 (5)
C80.150 (10)0.058 (6)0.080 (7)−0.002 (6)−0.030 (7)0.004 (5)
C70.114 (9)0.111 (10)0.077 (7)−0.010 (7)−0.028 (6)−0.010 (7)
C120.119 (8)0.088 (7)0.053 (5)0.009 (6)0.018 (5)0.015 (5)
C340.092 (7)0.085 (7)0.078 (7)−0.024 (6)−0.039 (6)0.034 (5)
C330.058 (6)0.125 (10)0.130 (10)−0.024 (6)−0.039 (7)0.077 (8)
C50.116 (9)0.121 (10)0.071 (7)0.053 (7)−0.007 (6)0.024 (6)
C60.089 (8)0.160 (12)0.055 (6)0.037 (8)−0.008 (5)0.006 (7)
Geometric parameters (Å, °) top
Sn1—O32.023 (4)C18—C191.377 (10)
Sn1—O22.114 (4)C16—H16A0.9700
Sn1—C92.145 (6)C16—H16B0.9700
Sn1—C162.145 (7)C28—C271.356 (14)
Sn1—O42.157 (3)C28—C291.390 (12)
Sn2—O42.033 (4)C28—H280.9300
Sn2—O4i2.089 (3)C25—Cl41.740 (8)
Sn2—C302.146 (6)C22—C211.369 (11)
Sn2—O32.163 (4)C22—H220.9300
Sn2—C232.165 (6)C35—C341.377 (11)
Sn2—Sn2i3.2130 (8)C35—H350.9300
O1—C11.238 (9)C29—H290.9300
Cl1—C181.745 (7)C19—H190.9300
Cl3—C311.725 (8)C21—H210.9300
O4—Sn2i2.089 (3)Cl2—C111.741 (8)
O3—H30.8200C15—C141.379 (11)
C24—C251.370 (10)C15—C101.395 (10)
C24—C291.412 (10)C15—H150.9300
C24—C231.496 (9)C10—C111.357 (11)
C30—C361.487 (8)C10—C91.494 (9)
C30—H30A0.9700C9—H9A0.9700
C30—H30B0.9700C9—H9B0.9700
O2—C11.281 (8)C3—C41.346 (11)
C26—C271.355 (13)C3—C81.357 (11)
C26—C251.377 (11)C11—C121.380 (11)
C26—H260.9300C14—C131.371 (14)
C20—C211.359 (12)C14—H140.9300
C20—C191.366 (11)C4—C51.362 (12)
C20—H200.9300C4—H40.9300
C36—C351.384 (9)C27—H270.9300
C36—C311.405 (10)C13—C121.371 (14)
C2—C31.503 (11)C13—H130.9300
C2—C11.521 (9)C8—C71.425 (14)
C2—H2A0.9700C8—H80.9300
C2—H2B0.9700C7—C61.335 (15)
C32—C331.358 (14)C7—H70.9300
C32—C311.366 (11)C12—H120.9300
C32—H320.9300C34—C331.364 (15)
C23—H23A0.9700C34—H340.9300
C23—H23B0.9700C33—H330.9300
C17—C181.374 (9)C5—C61.352 (14)
C17—C221.392 (10)C5—H50.9300
C17—C161.502 (9)C6—H60.9300
O4—Sn2—O4i77.61 (16)C17—C16—H16A109.0
O4—Sn2—C30120.9 (2)Sn1—C16—H16A109.0
O4i—Sn2—C30103.2 (2)C17—C16—H16B109.0
O4—Sn2—O372.95 (15)Sn1—C16—H16B109.0
O4i—Sn2—O3150.47 (16)H16A—C16—H16B107.8
C30—Sn2—O390.1 (2)C27—C28—C29121.5 (9)
O4—Sn2—C23121.1 (2)C27—C28—H28119.3
O4i—Sn2—C23101.5 (2)C29—C28—H28119.3
C30—Sn2—C23116.6 (3)C24—C25—C26121.9 (8)
O3—Sn2—C2395.6 (2)C24—C25—Cl4119.4 (6)
O4—Sn2—Sn2i39.43 (10)C26—C25—Cl4118.7 (7)
O4i—Sn2—Sn2i38.18 (11)C21—C22—C17121.7 (8)
C30—Sn2—Sn2i118.26 (17)C21—C22—H22119.2
O3—Sn2—Sn2i112.35 (11)C17—C22—H22119.2
C23—Sn2—Sn2i117.14 (19)C34—C35—C36120.4 (9)
O3—Sn1—O286.93 (17)C34—C35—H35119.8
O3—Sn1—C9117.5 (3)C36—C35—H35119.8
O2—Sn1—C993.6 (2)C28—C29—C24118.5 (9)
O3—Sn1—C16111.2 (2)C28—C29—H29120.8
O2—Sn1—C1695.2 (2)C24—C29—H29120.8
C9—Sn1—C16130.8 (3)C20—C19—C18118.2 (8)
O3—Sn1—O473.29 (15)C20—C19—H19120.9
O2—Sn1—O4159.50 (18)C18—C19—H19120.9
C9—Sn1—O490.9 (2)C20—C21—C22119.6 (8)
C16—Sn1—O496.9 (2)C20—C21—H21120.2
Sn2—O4—Sn2i102.39 (16)C22—C21—H21120.2
Sn2—O4—Sn1106.75 (16)C14—C15—C10122.0 (9)
Sn2i—O4—Sn1150.5 (2)C14—C15—H15119.0
Sn1—O3—Sn2106.89 (18)C10—C15—H15119.0
Sn1—O3—H3109.5C11—C10—C15116.4 (7)
Sn2—O3—H3142.1C11—C10—C9123.4 (7)
C25—C24—C29118.0 (7)C15—C10—C9120.2 (8)
C25—C24—C23122.7 (6)C10—C9—Sn1118.6 (4)
C29—C24—C23119.2 (7)C10—C9—H9A107.7
C36—C30—Sn2106.7 (4)Sn1—C9—H9A107.7
C36—C30—H30A110.4C10—C9—H9B107.7
Sn2—C30—H30A110.4Sn1—C9—H9B107.7
C36—C30—H30B110.4H9A—C9—H9B107.1
Sn2—C30—H30B110.4C4—C3—C8119.5 (9)
H30A—C30—H30B108.6C4—C3—C2119.6 (8)
C1—O2—Sn1129.9 (5)C8—C3—C2120.9 (8)
C27—C26—C25119.8 (9)C10—C11—C12123.5 (8)
C27—C26—H26120.1C10—C11—Cl2119.6 (6)
C25—C26—H26120.1C12—C11—Cl2116.8 (8)
C21—C20—C19121.2 (8)C13—C14—C15118.9 (9)
C21—C20—H20119.4C13—C14—H14120.5
C19—C20—H20119.4C15—C14—H14120.5
C35—C36—C31117.1 (7)C3—C4—C5120.6 (9)
C35—C36—C30121.3 (7)C3—C4—H4119.7
C31—C36—C30121.4 (6)C5—C4—H4119.7
C3—C2—C1114.5 (7)C26—C27—C28120.2 (9)
C3—C2—H2A108.6C26—C27—H27119.9
C1—C2—H2A108.6C28—C27—H27119.9
C3—C2—H2B108.6C12—C13—C14120.8 (8)
C1—C2—H2B108.6C12—C13—H13119.6
H2A—C2—H2B107.6C14—C13—H13119.6
C33—C32—C31118.9 (10)C3—C8—C7119.1 (10)
C33—C32—H32120.5C3—C8—H8120.5
C31—C32—H32120.5C7—C8—H8120.5
C24—C23—Sn2114.0 (4)C6—C7—C8120.2 (10)
C24—C23—H23A108.8C6—C7—H7119.9
Sn2—C23—H23A108.8C8—C7—H7119.9
C24—C23—H23B108.8C13—C12—C11118.4 (10)
Sn2—C23—H23B108.8C13—C12—H12120.8
H23A—C23—H23B107.7C11—C12—H12120.8
C32—C31—C36122.1 (8)C33—C34—C35120.6 (9)
C32—C31—Cl3118.4 (7)C33—C34—H34119.7
C36—C31—Cl3119.5 (5)C35—C34—H34119.7
C18—C17—C22116.3 (6)C32—C33—C34120.9 (9)
C18—C17—C16122.6 (6)C32—C33—H33119.5
C22—C17—C16121.0 (7)C34—C33—H33119.5
C17—C18—C19123.1 (7)C6—C5—C4121.5 (11)
C17—C18—Cl1118.5 (5)C6—C5—H5119.2
C19—C18—Cl1118.5 (6)C4—C5—H5119.2
O1—C1—O2124.1 (6)C7—C6—C5119.1 (11)
O1—C1—C2122.6 (7)C7—C6—H6120.5
O2—C1—C2113.2 (7)C5—C6—H6120.5
C17—C16—Sn1113.0 (5)
Symmetry codes: (i) −x+1, −y+1, −z+1.
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O3—H3···O10.821.782.554 (7)157
Table 1
Selected geometric parameters (Å) top
Sn1—O32.023 (4)Sn2—O42.033 (4)
Sn1—O22.114 (4)Sn2—O4i2.089 (3)
Sn1—C92.145 (6)Sn2—C302.146 (6)
Sn1—C162.145 (7)Sn2—O32.163 (4)
Sn1—O42.157 (3)Sn2—C232.165 (6)
Symmetry codes: (i) −x+1, −y+1, −z+1.
Table 2
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O3—H3···O10.821.782.554 (7)157
Acknowledgements top

The authors acknowledge the National Natural Science Foundation of China (grant No. 20771053) and the Natural Science Foundation of Shandong Province (grant No. Y2008B48) for financial support.

references
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