metal-organic compounds
Bis(μ-3,5-difluorobenzoato)bis[(3,5-difluorobenzoato)dimethyltin(IV)]
aCollege of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China
*Correspondence e-mail: handongyin@163.com
In the dinuclear title complex, [Sn2(CH3)4(C7H3F2O2)4], the SnIV atom is chelated by two 3,5-difluorobenzoate (dfb) anions and coordinated by two methyl groups while an O atom from the adjacent dfb anion bridges the Sb atom with a longer Sb—O bond distance of 2.793 (4) Å. The complex molecule has 2 symmetry and the SnIV atom is in a distorted pentagonal–bipyramidal coordination geometry. In the crystal, molecules are connected by C—H⋯O and C—H⋯F hydrogen bonds.
Related literature
For applications of organotin compounds, see: Duboy & Roy (2003). For related compounds, see: Yin et al. (2003, 2005).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536810054061/xu5108sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810054061/xu5108Isup2.hkl
3,5-Difluorobenzoic acid (0.4 mmol) was added to a methanol solution of sodium ethoxide (0.4 mmol) and heated at reflux for 0.5 h. To this solution was added dimethyltin dichloride (0.2 mmol) in benzene, and the mixture was refluxed for 5 h, cooled and filtered. The filtrate was evaporated in vacuo. The obtained solid was recrystallized from dichloromethane-petroleum ether. Anal. Calcd (%) for C16H12F4O4Sn (Mr = 462.95): C, 41.48; H, 2.60; Found (%): C, 41.49; H, 2.61.
The H atoms were positioned geometrically, with C—H = 0.96 (emthyl) and C—H = 0.93 Å (aromatic), and refined as riding on parent atoms with Uiso(H) = 1.5Ueq(C) for methyl and 1.2Ueq(C) for the others.
Data collection: SMART (Siemens, 1996); cell
SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the compound, showing 50% probability displacement ellipsoids [symmetry code: (A) -x, y, -z + 1/2]. |
[Sn2(C7H3F2O2)4(CH3)4] | F(000) = 904 |
Mr = 925.90 | Dx = 1.808 Mg m−3 |
Monoclinic, P2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yc | Cell parameters from 2614 reflections |
a = 16.4635 (15) Å | θ = 2.7–26.6° |
b = 7.5836 (8) Å | µ = 1.56 mm−1 |
c = 15.1123 (14) Å | T = 298 K |
β = 115.680 (1)° | Block, colourless |
V = 1700.4 (3) Å3 | 0.49 × 0.43 × 0.18 mm |
Z = 2 |
Bruker SMART CCD area detector diffractometer | 2987 independent reflections |
Radiation source: fine-focus sealed tube | 2020 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.059 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −19→18 |
Tmin = 0.515, Tmax = 0.766 | k = −8→9 |
8140 measured reflections | l = −17→14 |
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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.127 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0583P)2 + 0.6314P] where P = (Fo2 + 2Fc2)/3 |
2987 reflections | (Δ/σ)max = 0.003 |
228 parameters | Δρmax = 1.47 e Å−3 |
0 restraints | Δρmin = −0.76 e Å−3 |
[Sn2(C7H3F2O2)4(CH3)4] | V = 1700.4 (3) Å3 |
Mr = 925.90 | Z = 2 |
Monoclinic, P2/c | Mo Kα radiation |
a = 16.4635 (15) Å | µ = 1.56 mm−1 |
b = 7.5836 (8) Å | T = 298 K |
c = 15.1123 (14) Å | 0.49 × 0.43 × 0.18 mm |
β = 115.680 (1)° |
Bruker SMART CCD area detector diffractometer | 2987 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2020 reflections with I > 2σ(I) |
Tmin = 0.515, Tmax = 0.766 | Rint = 0.059 |
8140 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.127 | H-atom parameters constrained |
S = 1.05 | Δρmax = 1.47 e Å−3 |
2987 reflections | Δρmin = −0.76 e Å−3 |
228 parameters |
x | y | z | Uiso*/Ueq | ||
Sn1 | 0.05503 (2) | 0.25943 (4) | 0.14161 (3) | 0.03506 (18) | |
O1 | −0.0907 (3) | 0.2541 (4) | 0.1601 (3) | 0.0409 (10) | |
O2 | −0.0783 (3) | 0.2418 (4) | 0.0214 (3) | 0.0435 (10) | |
O3 | 0.2139 (3) | 0.2807 (6) | 0.1809 (4) | 0.0566 (12) | |
C7 | 0.1896 (4) | 0.2814 (7) | 0.0903 (5) | 0.0436 (15) | |
C14 | −0.1268 (4) | 0.2370 (6) | 0.0687 (5) | 0.0355 (13) | |
C8 | −0.2252 (4) | 0.2015 (7) | 0.0135 (5) | 0.0394 (14) | |
C1 | 0.2555 (4) | 0.3085 (8) | 0.0476 (5) | 0.0464 (16) | |
O4 | 0.1056 (3) | 0.2649 (5) | 0.0319 (3) | 0.0456 (11) | |
C9 | −0.2776 (4) | 0.1879 (9) | 0.0649 (5) | 0.0507 (16) | |
H9 | −0.2528 | 0.2066 | 0.1324 | 0.061* | |
C6 | 0.2292 (4) | 0.2844 (8) | −0.0504 (5) | 0.0499 (16) | |
H6 | 0.1704 | 0.2521 | −0.0917 | 0.060* | |
C13 | −0.2630 (4) | 0.1759 (10) | −0.0862 (5) | 0.0580 (17) | |
H13 | −0.2286 | 0.1869 | −0.1211 | 0.070* | |
C16 | 0.0715 (4) | −0.0095 (8) | 0.1744 (5) | 0.0531 (16) | |
H16A | 0.1342 | −0.0398 | 0.1991 | 0.080* | |
H16B | 0.0374 | −0.0763 | 0.1160 | 0.080* | |
H16C | 0.0507 | −0.0359 | 0.2232 | 0.080* | |
C2 | 0.3429 (4) | 0.3579 (9) | 0.1092 (5) | 0.0579 (18) | |
H2 | 0.3610 | 0.3744 | 0.1761 | 0.069* | |
C10 | −0.3662 (4) | 0.1465 (10) | 0.0133 (6) | 0.0649 (19) | |
C5 | 0.2920 (5) | 0.3092 (10) | −0.0867 (6) | 0.066 (2) | |
C15 | 0.0618 (4) | 0.5303 (7) | 0.1706 (5) | 0.0487 (16) | |
H15A | 0.0596 | 0.5497 | 0.2323 | 0.073* | |
H15B | 0.0117 | 0.5885 | 0.1193 | 0.073* | |
H15C | 0.1171 | 0.5768 | 0.1736 | 0.073* | |
C11 | −0.4055 (5) | 0.1176 (11) | −0.0845 (6) | 0.074 (2) | |
H11 | −0.4662 | 0.0879 | −0.1176 | 0.088* | |
C3 | 0.4014 (5) | 0.3813 (10) | 0.0687 (7) | 0.075 (2) | |
C4 | 0.3776 (5) | 0.3597 (10) | −0.0286 (7) | 0.075 (2) | |
H4 | 0.4188 | 0.3790 | −0.0545 | 0.090* | |
C12 | −0.3522 (5) | 0.1341 (11) | −0.1328 (5) | 0.072 (2) | |
F1 | 0.2678 (4) | 0.2848 (7) | −0.1838 (4) | 0.1003 (17) | |
F3 | −0.4177 (3) | 0.1298 (8) | 0.0627 (4) | 0.1096 (18) | |
F4 | −0.3896 (3) | 0.1015 (9) | −0.2298 (3) | 0.131 (2) | |
F2 | 0.4862 (3) | 0.4353 (7) | 0.1280 (4) | 0.1166 (19) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Sn1 | 0.0318 (3) | 0.0405 (3) | 0.0336 (3) | −0.00191 (17) | 0.0148 (2) | 0.00056 (18) |
O1 | 0.033 (2) | 0.057 (3) | 0.031 (2) | −0.0018 (16) | 0.0131 (19) | 0.0003 (18) |
O2 | 0.034 (2) | 0.055 (3) | 0.040 (3) | −0.0061 (17) | 0.014 (2) | −0.0040 (18) |
O3 | 0.039 (3) | 0.084 (3) | 0.047 (3) | 0.001 (2) | 0.019 (2) | 0.004 (2) |
C7 | 0.038 (4) | 0.044 (4) | 0.051 (4) | −0.003 (3) | 0.022 (3) | 0.003 (3) |
C14 | 0.034 (3) | 0.036 (3) | 0.036 (4) | 0.002 (2) | 0.014 (3) | 0.005 (3) |
C8 | 0.033 (3) | 0.041 (3) | 0.040 (4) | −0.001 (2) | 0.012 (3) | 0.000 (3) |
C1 | 0.034 (3) | 0.049 (3) | 0.063 (5) | −0.003 (3) | 0.027 (3) | 0.004 (3) |
O4 | 0.033 (2) | 0.066 (3) | 0.038 (3) | −0.0080 (18) | 0.016 (2) | −0.0043 (19) |
C9 | 0.042 (4) | 0.068 (4) | 0.040 (4) | −0.001 (3) | 0.015 (3) | −0.003 (3) |
C6 | 0.040 (4) | 0.064 (4) | 0.045 (4) | −0.003 (3) | 0.017 (3) | 0.001 (3) |
C13 | 0.047 (4) | 0.079 (5) | 0.046 (4) | −0.006 (4) | 0.018 (4) | −0.001 (4) |
C16 | 0.074 (4) | 0.036 (3) | 0.065 (4) | 0.006 (3) | 0.044 (4) | 0.004 (3) |
C2 | 0.034 (3) | 0.077 (5) | 0.063 (5) | −0.010 (3) | 0.021 (3) | −0.005 (4) |
C10 | 0.038 (4) | 0.097 (6) | 0.062 (5) | −0.008 (4) | 0.023 (4) | −0.002 (4) |
C5 | 0.069 (5) | 0.077 (5) | 0.067 (6) | 0.005 (4) | 0.045 (5) | 0.004 (4) |
C15 | 0.060 (4) | 0.037 (3) | 0.056 (4) | −0.007 (3) | 0.032 (3) | 0.004 (3) |
C11 | 0.034 (4) | 0.107 (7) | 0.068 (6) | −0.017 (4) | 0.011 (4) | −0.010 (5) |
C3 | 0.045 (4) | 0.091 (6) | 0.091 (7) | −0.013 (4) | 0.031 (5) | −0.007 (5) |
C4 | 0.060 (5) | 0.089 (6) | 0.095 (7) | −0.008 (4) | 0.052 (5) | 0.010 (5) |
C12 | 0.050 (4) | 0.102 (6) | 0.044 (5) | −0.012 (4) | 0.001 (4) | −0.009 (4) |
F1 | 0.082 (3) | 0.166 (5) | 0.074 (4) | 0.000 (3) | 0.053 (3) | −0.005 (3) |
F3 | 0.049 (3) | 0.196 (6) | 0.092 (4) | −0.018 (3) | 0.038 (3) | −0.011 (4) |
F4 | 0.066 (3) | 0.243 (7) | 0.054 (3) | −0.034 (4) | −0.003 (3) | −0.030 (4) |
F2 | 0.048 (3) | 0.183 (5) | 0.115 (4) | −0.034 (3) | 0.031 (3) | −0.013 (4) |
Sn1—O1 | 2.534 (4) | C13—C12 | 1.364 (9) |
Sn1—O1i | 2.793 (4) | C13—H13 | 0.9300 |
Sn1—O2 | 2.163 (4) | C16—H16A | 0.9600 |
Sn1—O3 | 2.424 (4) | C16—H16B | 0.9600 |
Sn1—O4 | 2.155 (4) | C16—H16C | 0.9600 |
Sn1—C15 | 2.093 (6) | C2—C3 | 1.359 (9) |
Sn1—C16 | 2.088 (6) | C2—H2 | 0.9300 |
O1—C14 | 1.252 (7) | C10—C11 | 1.350 (10) |
O2—C14 | 1.283 (7) | C10—F3 | 1.355 (7) |
O3—C7 | 1.249 (8) | C5—C4 | 1.353 (11) |
C7—O4 | 1.284 (8) | C5—F1 | 1.356 (9) |
C7—C1 | 1.497 (8) | C15—H15A | 0.9600 |
C14—C8 | 1.490 (8) | C15—H15B | 0.9600 |
C8—C13 | 1.372 (9) | C15—H15C | 0.9600 |
C8—C9 | 1.394 (8) | C11—C12 | 1.369 (10) |
C1—C6 | 1.363 (9) | C11—H11 | 0.9300 |
C1—C2 | 1.385 (8) | C3—F2 | 1.355 (8) |
C9—C10 | 1.360 (8) | C3—C4 | 1.357 (11) |
C9—H9 | 0.9300 | C4—H4 | 0.9300 |
C6—C5 | 1.377 (9) | C12—F4 | 1.344 (8) |
C6—H6 | 0.9300 | ||
C16—Sn1—C15 | 156.8 (3) | C12—C13—C8 | 118.3 (7) |
C16—Sn1—O4 | 98.49 (19) | C12—C13—H13 | 120.8 |
C15—Sn1—O4 | 98.00 (18) | C8—C13—H13 | 120.8 |
C16—Sn1—O2 | 96.8 (2) | Sn1—C16—H16A | 109.5 |
C15—Sn1—O2 | 100.32 (19) | Sn1—C16—H16B | 109.5 |
O4—Sn1—O2 | 86.84 (16) | H16A—C16—H16B | 109.5 |
C16—Sn1—O3 | 89.49 (19) | Sn1—C16—H16C | 109.5 |
C15—Sn1—O3 | 85.97 (18) | H16A—C16—H16C | 109.5 |
O4—Sn1—O3 | 56.72 (16) | H16B—C16—H16C | 109.5 |
O2—Sn1—O3 | 143.56 (17) | C3—C2—C1 | 117.7 (7) |
C16—Sn1—O1 | 89.44 (18) | C3—C2—H2 | 121.1 |
C15—Sn1—O1 | 87.67 (17) | C1—C2—H2 | 121.1 |
O4—Sn1—O1 | 141.79 (15) | C11—C10—F3 | 118.0 (6) |
O2—Sn1—O1 | 55.04 (15) | C11—C10—C9 | 123.5 (7) |
O3—Sn1—O1 | 161.28 (16) | F3—C10—C9 | 118.5 (7) |
C14—O1—Sn1 | 84.2 (3) | C4—C5—F1 | 118.5 (7) |
C14—O2—Sn1 | 100.6 (4) | C4—C5—C6 | 122.0 (8) |
C7—O3—Sn1 | 86.2 (4) | F1—C5—C6 | 119.5 (7) |
O3—C7—O4 | 119.4 (6) | Sn1—C15—H15A | 109.5 |
O3—C7—C1 | 121.8 (6) | Sn1—C15—H15B | 109.5 |
O4—C7—C1 | 118.8 (6) | H15A—C15—H15B | 109.5 |
O1—C14—O2 | 120.0 (5) | Sn1—C15—H15C | 109.5 |
O1—C14—C8 | 121.2 (5) | H15A—C15—H15C | 109.5 |
O2—C14—C8 | 118.8 (5) | H15B—C15—H15C | 109.5 |
C13—C8—C9 | 120.4 (6) | C10—C11—C12 | 117.1 (7) |
C13—C8—C14 | 120.4 (6) | C10—C11—H11 | 121.5 |
C9—C8—C14 | 119.1 (6) | C12—C11—H11 | 121.5 |
C6—C1—C2 | 121.0 (6) | F2—C3—C4 | 119.0 (7) |
C6—C1—C7 | 120.2 (6) | F2—C3—C2 | 118.0 (8) |
C2—C1—C7 | 118.9 (6) | C4—C3—C2 | 122.9 (7) |
C7—O4—Sn1 | 97.6 (4) | C5—C4—C3 | 118.0 (7) |
C10—C9—C8 | 117.9 (6) | C5—C4—H4 | 121.0 |
C10—C9—H9 | 121.1 | C3—C4—H4 | 121.0 |
C8—C9—H9 | 121.1 | F4—C12—C13 | 119.2 (7) |
C1—C6—C5 | 118.4 (7) | F4—C12—C11 | 118.0 (7) |
C1—C6—H6 | 120.8 | C13—C12—C11 | 122.8 (7) |
C5—C6—H6 | 120.8 | ||
C16—Sn1—O1—C14 | −96.4 (3) | C1—C7—O4—Sn1 | −174.4 (4) |
C15—Sn1—O1—C14 | 106.7 (3) | C16—Sn1—O4—C7 | −85.4 (4) |
O4—Sn1—O1—C14 | 6.7 (4) | C15—Sn1—O4—C7 | 78.2 (3) |
O2—Sn1—O1—C14 | 2.4 (3) | O2—Sn1—O4—C7 | 178.1 (3) |
O3—Sn1—O1—C14 | 176.9 (4) | O3—Sn1—O4—C7 | −1.6 (3) |
C16—Sn1—O2—C14 | 82.1 (3) | O1—Sn1—O4—C7 | 174.6 (3) |
C15—Sn1—O2—C14 | −82.1 (3) | C13—C8—C9—C10 | 0.9 (10) |
O4—Sn1—O2—C14 | −179.7 (3) | C14—C8—C9—C10 | −176.7 (6) |
O3—Sn1—O2—C14 | −179.4 (3) | C2—C1—C6—C5 | 0.5 (10) |
O1—Sn1—O2—C14 | −2.4 (3) | C7—C1—C6—C5 | −179.4 (6) |
C16—Sn1—O3—C7 | 102.2 (4) | C9—C8—C13—C12 | −1.1 (10) |
C15—Sn1—O3—C7 | −100.6 (4) | C14—C8—C13—C12 | 176.4 (6) |
O4—Sn1—O3—C7 | 1.7 (3) | C6—C1—C2—C3 | 0.0 (10) |
O2—Sn1—O3—C7 | 1.3 (5) | C7—C1—C2—C3 | 179.9 (6) |
O1—Sn1—O3—C7 | −171.1 (4) | C8—C9—C10—C11 | 0.2 (12) |
Sn1—O3—C7—O4 | −2.7 (5) | C8—C9—C10—F3 | 178.8 (6) |
Sn1—O3—C7—C1 | 174.7 (5) | C1—C6—C5—C4 | −1.4 (11) |
Sn1—O1—C14—O2 | −3.8 (4) | C1—C6—C5—F1 | 179.5 (6) |
Sn1—O1—C14—C8 | 173.0 (4) | F3—C10—C11—C12 | −179.6 (7) |
Sn1—O2—C14—O1 | 4.5 (5) | C9—C10—C11—C12 | −0.9 (13) |
Sn1—O2—C14—C8 | −172.3 (4) | C1—C2—C3—F2 | 177.8 (6) |
O1—C14—C8—C13 | −177.3 (6) | C1—C2—C3—C4 | 0.5 (12) |
O2—C14—C8—C13 | −0.5 (8) | F1—C5—C4—C3 | −179.1 (7) |
O1—C14—C8—C9 | 0.2 (8) | C6—C5—C4—C3 | 1.8 (12) |
O2—C14—C8—C9 | 177.0 (5) | F2—C3—C4—C5 | −178.7 (7) |
O3—C7—C1—C6 | 170.9 (6) | C2—C3—C4—C5 | −1.3 (13) |
O4—C7—C1—C6 | −11.6 (8) | C8—C13—C12—F4 | −177.3 (7) |
O3—C7—C1—C2 | −9.0 (9) | C8—C13—C12—C11 | 0.4 (12) |
O4—C7—C1—C2 | 168.4 (5) | C10—C11—C12—F4 | 178.3 (8) |
O3—C7—O4—Sn1 | 3.1 (6) | C10—C11—C12—C13 | 0.6 (13) |
Symmetry code: (i) −x, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···F4ii | 0.93 | 2.49 | 3.326 (8) | 149 |
C15—H15B···O4iii | 0.96 | 2.52 | 3.474 (8) | 171 |
Symmetry codes: (ii) −x−1, y, −z−1/2; (iii) −x, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | [Sn2(C7H3F2O2)4(CH3)4] |
Mr | 925.90 |
Crystal system, space group | Monoclinic, P2/c |
Temperature (K) | 298 |
a, b, c (Å) | 16.4635 (15), 7.5836 (8), 15.1123 (14) |
β (°) | 115.680 (1) |
V (Å3) | 1700.4 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.56 |
Crystal size (mm) | 0.49 × 0.43 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART CCD area detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.515, 0.766 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8140, 2987, 2020 |
Rint | 0.059 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.127, 1.05 |
No. of reflections | 2987 |
No. of parameters | 228 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.47, −0.76 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXTL (Sheldrick, 2008).
Sn1—O1 | 2.534 (4) | Sn1—O4 | 2.155 (4) |
Sn1—O2 | 2.163 (4) | Sn1—C15 | 2.093 (6) |
Sn1—O3 | 2.424 (4) | Sn1—C16 | 2.088 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···F4i | 0.93 | 2.49 | 3.326 (8) | 149 |
C15—H15B···O4ii | 0.96 | 2.52 | 3.474 (8) | 171 |
Symmetry codes: (i) −x−1, y, −z−1/2; (ii) −x, −y+1, −z. |
Acknowledgements
We acknowledge the National Natural Science Foundation of China (20771053) and the Natural Science Foundation of Shandong Province (Y2008B48) for financial support.
References
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In recent years, organotin compounds have attracted increasing attention owing to their wide industrial applications and biological activities (Duboy & Roy, 2003). We have therefore synthesized the title compound, and present its crystal structure here. The molecular structure of the compound is shown Fig. 1. For this compound, the asymmetric unit contains twomonomers, which are different from a crystallographic point of view. In this compound we can found the Sn atom exists in a distorted pentagonal bipyramidal coordination environment. The atoms O1, O1A, O2, O3 and O4 are coplanar within 0.044 Å, which form the equatorial plane. Furthermore, the angle of the axial C16—Sn1—C15 is 156.8 (3)°, which deviates from the linear angle of 180. The O1 atom of the carboxylate residue also binds the other tin atom, Sn1A, generating a Sn2O2 four-membered ring. The distance of Sn—O1 [-x, y, 0.5 - z] (2.793 (4) Å) is relatively longer than that of Sn1—O1 (2.534 (4) Å), but is comparable to those found in related seven-coordinate diorganotin systems (Yin et al., 2003). Thereby, the molecular structure of this compound can be described as a dimer, and the coordination geometry of tin can also be described as a trans-C2SnO5 pentagonal bipyramid with the two methyl groups occupying axial positions (Yin et al., 2005).
The molecules are linked by C—H···O and C—H···F hydrogen bonds into a one-dimensional chain structure (Table 2).