catena-Poly[[trimethyl­tin(IV)]-μ-[(E)-2-methyl-3-(3-methyl­phen­yl)acrylato-κ2O:O′]]

Muhammad, N.; Tahir, M.N.; Ali, S.; Zia-ur-Rehman

doi:10.1107/S1600536808019533

metal-organic compounds

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 64| Part 8| August 2008| Page m978

doi:10.1107/S1600536808019533

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catena-Poly[[trimethyltin(IV)]-μ-[(E)-2-methyl-3-(3-methylphenyl)acrylato-κ²O:O′]]

Niaz Muhammad,^a M. Nawaz Tahir,^b ^* Saqib Ali ^a and Zia-ur-Rehman ^a

^aDepartment of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan, and ^bUniversity of Sargodha, Department of Physics, Sagrodha, Pakistan
^*Correspondence e-mail: dmntahir_uos@yahoo.com

(Received 26 June 2008; accepted 27 June 2008; online 5 July 2008)

The title trimethyltin(IV) carboxylate, [Sn(CH₃)₃(C₁₁H₁₁O₂)]_n, is a carboxylate-bridged polymer in which the Sn atom exists in a trans-C₃SnO₂ trigonal bipyramidal coordination. One Sn—O bond is a covalent bond [2.114 (2) Å], whereas the other is a dative bond [2.607 (2) Å]. The polymeric chain propagates along the b axis of the monoclinic unit cell.

Related literature

For related crystal structures, see: Muhammad et al. (2008a ,b ); Niaz et al. (2008 ); Tahir et al. (1997a ,b ).

Experimental

Crystal data

[Sn(CH₃)₃(C₁₁H₁₁O₂)]
M_r = 339.01
Monoclinic, C 2/c
a = 12.9530 (6) Å
b = 9.8756 (4) Å
c = 24.0728 (10) Å
β = 101.301 (2)°
V = 3019.7 (2) Å³
Z = 8
Mo Kα radiation
μ = 1.68 mm⁻¹
T = 296 (2) K
0.25 × 0.18 × 0.15 mm

Data collection

Bruker Kappa APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2005 ) T_min = 0.705, T_max = 0.781
14486 measured reflections
3348 independent reflections
2874 reflections with I > 2σ(I)
R_int = 0.023

Refinement

R[F² > 2σ(F²)] = 0.024
wR(F²) = 0.068
S = 1.01
3348 reflections
145 parameters
H-atom parameters constrained
Δρ_max = 0.63 e Å⁻³
Δρ_min = −0.41 e Å⁻³

Table 1
Selected geometric parameters (Å, °)

Sn1—O1	2.1144 (19)
Sn1—C12	2.1126 (17)
Sn1—C13	2.1072 (17)
Sn1—C14	2.1037 (18)
Sn1—O2ⁱ	2.607 (2)

O1—Sn1—C12	90.17 (7)
O1—Sn1—C13	97.09 (7)
O1—Sn1—C14	98.56 (7)
O1—Sn1—O2ⁱ	175.64 (7)
C12—Sn1—C13	114.87 (7)
C12—Sn1—C14	116.04 (7)
C13—Sn1—C14	126.36 (7)
Symmetry code: (i) $[-x+{\script{1\over 2}}, y-{\script{1\over 2}}, -z+{\script{1\over 2}}]$ .

Data collection: APEX2 (Bruker, 2007 ); cell refinement: APEX2; data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ); software used to prepare material for publication: WinGX (Farrugia, 1999 ) and PLATON (Spek, 2003 ).

Supporting information

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536808019533/ng2468sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536808019533/ng2468Isup2.hkl

checkCIF report

Comment top

Organotin compounds have attracted much interest owing to their potential use in industry and agriculture. In the Pharmaceutical industry, a number of dialkyltin carboxylate derivatives are being used as efficient antitumor and anticancer agents. In continuation of synthesizing new ligands having carboxylate groups (Muhammad et al., 2008a, Niaz et al., 2008) and their complexation with organotin(IV) (Muhammad et al., 2008b), we report the crystal structure of title compound (I).

The title compound (I) (Fig 1.) is the trimethyltin(IV) complex of 3-(3-Methylphenyl)-2-methylacrylate (Muhammad et al., 2008a). The crystal structures of (II) {2-[(2,3-Dimethylphenyl)amino]benzoato-O:O'}trimethyltin(IV) (Tahir et al., 1997a) and (III) (Ketoprofenato)trimethyltin(IV) (Tahir et al., 1997b) have been reported. As the present complex have similar geometry around Sn-atom, so the bond lengths and bond angles are being compared with (II) and (III). The range of Sn—C [2.1037 (18)- 2.1126 (17) Å] bonds in (I) is reported as [2.106 (3)–2.113 (4) Å] in (II) and 2.106 (6)–2.116 (5) Å, in (III). The range of C—Sn—C [114.87 (7)- 126.36 (7)°] bond angles in (I) is reported as [113.9 (2)°-125.2 (1)°] in (II) and 117.0 (2)°-124.7 (3)°, in (III). Therefore, the C—Sn—C bond angles of trimethyltin moiety is mainly affected due to the change of coordinating ligand. The bond distances for Sn1—O1 [2.1144 (19) Å] and Sn1—O2ⁱ [2.607 (2) Å] (symmetry code i = -x + 1/2, y - 1/2, -z + 1/2) have different values compared to (II) and (III). These values in (II) and (III) are [2.153 (2) Å and 2.495 (2) Å] and [2.184 (3) Å and 2.433 (4) Å], respectively. The O1—Sn1—O2ⁱ bond angle is 175.64 (7)°, which is larger but not very different from (II) and (III). The dihedral angle between the plane of benzene ring A (C5—C10) and the plane formed by C11/C12/C13 is 76.16 (7)°, whereas it is 7.0 (7)° between O1/C1/O2 and C2/C3/C4. There is a single C—H···O interamolecular H-bond (Table 2, Fig 1.) forming a five-membered ring (O1/C1/C2/C4/H4···O1). There exist π-π-interactions between the centroids of benzene ring [CgA···CgAⁱⁱⁱ: symmetry code iii = 1 - x, -y, -z] and [CgA···CgA^iv: symmetry code iv = 1 - x, 1 - y, -z]. The perpendicular distance between the centroids for CgA···CgAⁱⁱⁱ and CgA···CgA^iv is 3.488 Å and 3.725 Å, respectively. The compound is polymeric in nature due to the bridging nature of carboxyl group.

Related literature top

For related crystal structures, see: Muhammad et al. (2008a,b); Niaz et al. (2008); Tahir et al. (1997a,b).

Experimental top

The title compound (I), was prepared by the reaction of stoichiometric amounts of the sodium 3-(3-methylphenyl)-2-methylacrylate (0.399 g, 2.02 mmol) and (0.402 g, 2.02 mmol)of trimethyltin(IV)chloride in dry toluene (100 ml). The reaction mixture was refluxed for 8 h and then allowed to stand overnight. The residual sodium salt was removed by filtration and the solvent was evaporated under reduced pressure leaving a solid residue. This was recrystallized from a mixture of chloroform/n-hexane (4:1). The yield was 80%.

Computing details top

Data collection: APEX2 (Bruker, 2007); cell refinement: APEX2 (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2003).

Figures top

	Fig. 1. ORTEP drawing of the title compound, (C₁₁H₁₁O₂)Sn(CH₃)₃ with the atom numbering scheme. The thermal ellipsoids are drawn at the 50% probability level. H-atoms are shown by small circles of arbitrary radii. The interamolecular H-bond is shown by dotted lines.
	Fig. 2. The figure showing the polymeric compound.

catena-Poly[[trimethyltin(IV)]-µ-[(E)-2-methyl-3-(3-methylphenyl)acrylato-κ²O:O']] top

Crystal data top

[Sn(CH₃)₃(C₁₁H₁₁O₂)]	F(000) = 1360
M_r = 339.01	D_x = 1.491 Mg m⁻³
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 3348 reflections
a = 12.9530 (6) Å	θ = 2.6–27.1°
b = 9.8756 (4) Å	µ = 1.68 mm⁻¹
c = 24.0728 (10) Å	T = 296 K
β = 101.301 (2)°	Prismatic, colourless
V = 3019.7 (2) Å³	0.25 × 0.18 × 0.15 mm
Z = 8

Data collection top

Bruker Kappa APEXII CCD diffractometer	3348 independent reflections
Radiation source: fine-focus sealed tube	2874 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.023
Detector resolution: 7.5 pixels mm^-1	θ_max = 27.2°, θ_min = 2.6°
ω sans scans	h = −16→15
Absorption correction: multi-scan (SADABS; Bruker, 2005)	k = −7→12
T_min = 0.705, T_max = 0.781	l = −30→30
14486 measured reflections

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.024	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.068	H-atom parameters constrained
S = 1.01	w = 1/[σ²(F_o²) + (0.0374P)² + 3.5913P] where P = (F_o² + 2F_c²)/3
3348 reflections	(Δ/σ)_max = 0.001
145 parameters	Δρ_max = 0.63 e Å⁻³
0 restraints	Δρ_min = −0.41 e Å⁻³

Crystal data top

[Sn(CH₃)₃(C₁₁H₁₁O₂)]	V = 3019.7 (2) Å³
M_r = 339.01	Z = 8
Monoclinic, C2/c	Mo Kα radiation
a = 12.9530 (6) Å	µ = 1.68 mm⁻¹
b = 9.8756 (4) Å	T = 296 K
c = 24.0728 (10) Å	0.25 × 0.18 × 0.15 mm
β = 101.301 (2)°

Data collection top

Bruker Kappa APEXII CCD diffractometer	3348 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2005)	2874 reflections with I > 2σ(I)
T_min = 0.705, T_max = 0.781	R_int = 0.023
14486 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.024	0 restraints
wR(F²) = 0.068	H-atom parameters constrained
S = 1.01	Δρ_max = 0.63 e Å⁻³
3348 reflections	Δρ_min = −0.41 e Å⁻³
145 parameters

Special details top

Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles

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
Sn1	0.28429 (1)	−0.16993 (2)	0.22816 (1)	0.0380 (1)
O1	0.32929 (16)	−0.03474 (18)	0.16907 (8)	0.0498 (6)
O2	0.26730 (17)	0.1483 (2)	0.20361 (9)	0.0529 (7)
C1	0.3143 (2)	0.0940 (3)	0.17022 (10)	0.0389 (7)
C2	0.3576 (2)	0.1747 (2)	0.12708 (11)	0.0401 (8)
C3	0.3324 (3)	0.3224 (3)	0.12430 (15)	0.0591 (10)
C4	0.4185 (2)	0.1119 (3)	0.09665 (11)	0.0426 (8)
C5	0.4713 (2)	0.1667 (3)	0.05244 (12)	0.0482 (9)
C6	0.5691 (3)	0.1139 (4)	0.04886 (14)	0.0663 (11)
C7	0.6223 (3)	0.1596 (5)	0.00784 (19)	0.0870 (18)
C8	0.5750 (3)	0.2546 (5)	−0.03080 (15)	0.0809 (15)
C9	0.4775 (3)	0.3064 (4)	−0.02935 (13)	0.0663 (11)
C10	0.4254 (3)	0.2612 (3)	0.01229 (12)	0.0534 (10)
C11	0.42742 (14)	0.40923 (17)	−0.07152 (7)	0.0932 (18)
C12	0.35163 (14)	−0.33276 (17)	0.19080 (7)	0.0624 (11)
C13	0.38060 (14)	−0.08820 (17)	0.30121 (7)	0.0547 (10)
C14	0.12000 (14)	−0.14855 (17)	0.20410 (7)	0.0586 (10)
H3A	0.33496	0.35644	0.16190	0.0885*
H3B	0.26305	0.33584	0.10207	0.0885*
H3C	0.38277	0.36974	0.10716	0.0885*
H4	0.42933	0.02018	0.10434	0.0511*
H6	0.59915	0.04728	0.07422	0.0792*
H7	0.68900	0.12660	0.00642	0.1042*
H8	0.61025	0.28430	−0.05866	0.0972*
H10	0.35872	0.29454	0.01336	0.0640*
H11A	0.37070	0.45259	−0.05805	0.1396*
H11B	0.40055	0.36550	−0.10702	0.1396*
H11C	0.47878	0.47577	−0.07662	0.1396*
H12A	0.30201	−0.40592	0.18350	0.0935*
H12B	0.41411	−0.36295	0.21610	0.0935*
H12C	0.36936	−0.30341	0.15582	0.0935*
H13A	0.34336	−0.01717	0.31612	0.0820*
H13B	0.44368	−0.05221	0.29160	0.0820*
H13C	0.39864	−0.15800	0.32919	0.0820*
H14A	0.09961	−0.06049	0.21497	0.0879*
H14B	0.08599	−0.21672	0.22256	0.0879*
H14C	0.09943	−0.15869	0.16378	0.0879*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Sn1	0.0438 (1)	0.0315 (1)	0.0422 (1)	−0.0025 (1)	0.0169 (1)	−0.0026 (1)
O1	0.0662 (12)	0.0339 (9)	0.0574 (11)	−0.0025 (9)	0.0322 (10)	0.0049 (8)
O2	0.0681 (13)	0.0464 (11)	0.0518 (11)	0.0016 (9)	0.0307 (10)	−0.0030 (9)
C1	0.0445 (14)	0.0348 (12)	0.0393 (12)	−0.0037 (11)	0.0131 (11)	−0.0012 (10)
C2	0.0499 (15)	0.0326 (12)	0.0405 (13)	−0.0067 (11)	0.0152 (11)	0.0005 (10)
C3	0.086 (2)	0.0339 (14)	0.0670 (19)	−0.0010 (14)	0.0383 (18)	0.0022 (13)
C4	0.0512 (15)	0.0386 (13)	0.0409 (13)	−0.0029 (12)	0.0162 (11)	0.0015 (11)
C5	0.0548 (16)	0.0507 (16)	0.0432 (14)	−0.0101 (13)	0.0196 (12)	−0.0023 (12)
C6	0.063 (2)	0.082 (2)	0.0602 (19)	0.0021 (18)	0.0278 (16)	0.0043 (18)
C7	0.068 (2)	0.126 (4)	0.078 (3)	−0.014 (2)	0.041 (2)	−0.008 (3)
C8	0.083 (3)	0.115 (3)	0.0525 (19)	−0.036 (2)	0.0324 (19)	0.002 (2)
C9	0.081 (2)	0.075 (2)	0.0420 (16)	−0.0339 (19)	0.0099 (15)	0.0009 (15)
C10	0.0604 (18)	0.0567 (18)	0.0434 (14)	−0.0169 (14)	0.0111 (13)	0.0004 (13)
C11	0.121 (4)	0.100 (3)	0.053 (2)	−0.040 (3)	0.003 (2)	0.023 (2)
C12	0.085 (2)	0.0397 (15)	0.075 (2)	0.0003 (15)	0.0463 (19)	−0.0039 (14)
C13	0.0519 (16)	0.0603 (18)	0.0517 (16)	−0.0072 (14)	0.0099 (13)	−0.0042 (14)
C14	0.0489 (16)	0.0635 (19)	0.0629 (18)	−0.0053 (14)	0.0095 (14)	0.0069 (15)

Geometric parameters (Å, º) top

Sn1—O1	2.1144 (19)	C3—H3B	0.9600
Sn1—C12	2.1126 (17)	C3—H3C	0.9600
Sn1—C13	2.1072 (17)	C4—H4	0.9300
Sn1—C14	2.1037 (18)	C6—H6	0.9300
Sn1—O2ⁱ	2.607 (2)	C7—H7	0.9300
O1—C1	1.287 (3)	C8—H8	0.9300
O2—C1	1.223 (3)	C10—H10	0.9300
C1—C2	1.502 (4)	C11—H11A	0.9600
C2—C3	1.493 (4)	C11—H11B	0.9600
C2—C4	1.330 (4)	C11—H11C	0.9600
C4—C5	1.476 (4)	C12—H12A	0.9600
C5—C6	1.388 (5)	C12—H12B	0.9600
C5—C10	1.391 (4)	C12—H12C	0.9600
C6—C7	1.386 (6)	C13—H13A	0.9600
C7—C8	1.378 (6)	C13—H13B	0.9600
C8—C9	1.369 (6)	C13—H13C	0.9600
C9—C10	1.387 (5)	C14—H14A	0.9600
C9—C11	1.492 (4)	C14—H14B	0.9600
C3—H3A	0.9600	C14—H14C	0.9600

O1—Sn1—C12	90.17 (7)	C5—C4—H4	115.00
O1—Sn1—C13	97.09 (7)	C5—C6—H6	120.00
O1—Sn1—C14	98.56 (7)	C7—C6—H6	120.00
O1—Sn1—O2ⁱ	175.64 (7)	C6—C7—H7	120.00
C12—Sn1—C13	114.87 (7)	C8—C7—H7	120.00
C12—Sn1—C14	116.04 (7)	C7—C8—H8	119.00
C13—Sn1—C14	126.36 (7)	C9—C8—H8	119.00
Sn1—O1—C1	123.13 (17)	C5—C10—H10	119.00
Sn1ⁱⁱ—O2—C1	159.7 (2)	C9—C10—H10	119.00
O1—C1—O2	122.9 (2)	C9—C11—H11A	109.00
O1—C1—C2	115.5 (2)	C9—C11—H11B	109.00
O2—C1—C2	121.5 (3)	C9—C11—H11C	109.00
C1—C2—C3	116.2 (2)	H11A—C11—H11B	109.00
C1—C2—C4	118.4 (2)	H11A—C11—H11C	109.00
C3—C2—C4	125.4 (3)	H11B—C11—H11C	109.00
C2—C4—C5	129.4 (3)	Sn1—C12—H12A	109.00
C4—C5—C6	117.7 (3)	Sn1—C12—H12B	109.00
C4—C5—C10	123.5 (3)	Sn1—C12—H12C	109.00
C6—C5—C10	118.7 (3)	H12A—C12—H12B	109.00
C5—C6—C7	120.6 (3)	H12A—C12—H12C	109.00
C6—C7—C8	119.1 (4)	H12B—C12—H12C	109.00
C7—C8—C9	121.8 (4)	Sn1—C13—H13A	109.00
C8—C9—C10	118.7 (3)	Sn1—C13—H13B	109.00
C8—C9—C11	121.2 (3)	Sn1—C13—H13C	109.00
C10—C9—C11	120.2 (3)	H13A—C13—H13B	109.00
C5—C10—C9	121.1 (3)	H13A—C13—H13C	109.00
C2—C3—H3A	109.00	H13B—C13—H13C	109.00
C2—C3—H3B	109.00	Sn1—C14—H14A	109.00
C2—C3—H3C	110.00	Sn1—C14—H14B	109.00
H3A—C3—H3B	109.00	Sn1—C14—H14C	109.00
H3A—C3—H3C	110.00	H14A—C14—H14B	109.00
H3B—C3—H3C	109.00	H14A—C14—H14C	109.00
C2—C4—H4	115.00	H14B—C14—H14C	109.00

C12—Sn1—O1—C1	−176.6 (2)	C1—C2—C4—C5	−179.4 (3)
C13—Sn1—O1—C1	−61.5 (2)	C3—C2—C4—C5	−2.8 (5)
C14—Sn1—O1—C1	67.0 (2)	C2—C4—C5—C6	145.1 (3)
C12—Sn1—O2ⁱ—C1ⁱ	−157.4 (5)	C2—C4—C5—C10	−39.2 (5)
C13—Sn1—O2ⁱ—C1ⁱ	87.2 (5)	C4—C5—C6—C7	179.2 (3)
C14—Sn1—O2ⁱ—C1ⁱ	−40.4 (5)	C10—C5—C6—C7	3.3 (5)
Sn1—O1—C1—O2	−4.3 (4)	C4—C5—C10—C9	−178.1 (3)
Sn1—O1—C1—C2	176.30 (16)	C6—C5—C10—C9	−2.5 (5)
Sn1ⁱⁱ—O2—C1—O1	146.2 (4)	C5—C6—C7—C8	−2.5 (6)
Sn1ⁱⁱ—O2—C1—C2	−34.4 (7)	C6—C7—C8—C9	0.9 (7)
O1—C1—C2—C3	174.6 (3)	C7—C8—C9—C10	−0.1 (6)
O1—C1—C2—C4	−8.5 (4)	C7—C8—C9—C11	180.0 (4)
O2—C1—C2—C3	−4.8 (4)	C8—C9—C10—C5	0.9 (5)
O2—C1—C2—C4	172.1 (3)	C11—C9—C10—C5	−179.2 (3)

Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2; (ii) −x+1/2, y+1/2, −z+1/2.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
C4—H4···O1	0.9300	2.2800	2.695 (3)	107.00

Experimental details

Crystal data
Chemical formula	[Sn(CH₃)₃(C₁₁H₁₁O₂)]
M_r	339.01
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	296
a, b, c (Å)	12.9530 (6), 9.8756 (4), 24.0728 (10)
β (°)	101.301 (2)
V (Å³)	3019.7 (2)
Z	8
Radiation type	Mo Kα
µ (mm⁻¹)	1.68
Crystal size (mm)	0.25 × 0.18 × 0.15

Data collection
Diffractometer	Bruker Kappa APEXII CCD diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2005)
T_min, T_max	0.705, 0.781
No. of measured, independent and observed [I > 2σ(I)] reflections	14486, 3348, 2874
R_int	0.023
(sin θ/λ)_max (Å⁻¹)	0.642

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.024, 0.068, 1.01
No. of reflections	3348
No. of parameters	145
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.63, −0.41

Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999) and PLATON (Spek, 2003).

Selected geometric parameters (Å, º) top

Sn1—O1	2.1144 (19)	Sn1—C14	2.1037 (18)
Sn1—C12	2.1126 (17)	Sn1—O2ⁱ	2.607 (2)
Sn1—C13	2.1072 (17)

O1—Sn1—C12	90.17 (7)	C12—Sn1—C13	114.87 (7)
O1—Sn1—C13	97.09 (7)	C12—Sn1—C14	116.04 (7)
O1—Sn1—C14	98.56 (7)	C13—Sn1—C14	126.36 (7)
O1—Sn1—O2ⁱ	175.64 (7)

Symmetry code: (i) −x+1/2, y−1/2, −z+1/2.

Acknowledgements

The authors acknowledge the Higher Education Commission, Islamabad, Pakistan, for funding the purchase of the diffractometer at GCU, Lahore, and for financial support to NM for PhD studies under the Indigenous Scholarship Scheme.

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