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Acta Crystallogr Sect E Struct Rep Online. 2009 February 1; 65(Pt 2): o266.
Published online 2009 January 8. doi:  10.1107/S1600536809000208
PMCID: PMC2968330

Butyl 2-(5-iodo-3-methyl­sulfinyl-1-benzofuran-2-yl)acetate

Abstract

In the title compound, C15H17IO4S, the O atom and the methyl group of the methyl­sulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment. The crystal structure is stabilized by weak inter­molecular C—H(...)π inter­actions between a methyl H atom of the methyl­sulfinyl group and the benzene ring of the benzofuran system, and by an I(...)O halogen bond of 3.173 (3) Å and a nearly linear C—I(...)O angle of 171.7 (1)°. In addition, the crystal structure exhibits weak inter­molecular C—H(...)O hydrogen bonds. The O atom of the carbonyl group and the butyl chain are both disordered over two positions with site-occupancy factors from refinement of 0.55 (4) and 0.45 (4) (for the O atom), and 0.76 (2) and 0.24 (2) (for the butyl group).

Related literature

For the crystal structures of similar alkyl 2-(5-iodo-3-methyl­sulfinyl-1-benzofuran-2-yl)acetate derivatives. see: Choi et al. (2007 [triangle], 2008 [triangle]). For a review of halogen bonding, see: Politzer et al. (2007 [triangle]).

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Object name is e-65-0o266-scheme1.jpg

Experimental

Crystal data

  • C15H17IO4S
  • M r = 420.25
  • Monoclinic, An external file that holds a picture, illustration, etc.
Object name is e-65-0o266-efi7.jpg
  • a = 10.298 (1) Å
  • b = 15.208 (1) Å
  • c = 11.109 (1) Å
  • β = 100.669 (1)°
  • V = 1709.7 (3) Å3
  • Z = 4
  • Mo Kα radiation
  • μ = 2.01 mm−1
  • T = 100 (2) K
  • 0.20 × 0.20 × 0.10 mm

Data collection

  • Bruker SMART CCD diffractometer
  • Absorption correction: multi-scan (SADABS; Sheldrick, 1999 [triangle]) T min = 0.673, T max = 0.822
  • 8829 measured reflections
  • 3009 independent reflections
  • 2581 reflections with I > 2σ(I)
  • R int = 0.017

Refinement

  • R[F 2 > 2σ(F 2)] = 0.032
  • wR(F 2) = 0.085
  • S = 1.07
  • 3009 reflections
  • 222 parameters
  • 43 restraints
  • H-atom parameters constrained
  • Δρmax = 0.71 e Å−3
  • Δρmin = −0.61 e Å−3

Data collection: SMART (Bruker, 2001 [triangle]); cell refinement: SAINT (Bruker, 2001 [triangle]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 [triangle]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 [triangle]); molecular graphics: ORTEP-3 (Farrugia, 1997 [triangle]) and DIAMOND (Brandenburg, 1998 [triangle]); software used to prepare material for publication: SHELXL97.

Table 1
Hydrogen-bond geometry (Å, °)

Supplementary Material

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809000208/hg2458sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536809000208/hg2458Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

supplementary crystallographic information

Comment

This work is related to our previous communications on the synthesis and structure of alkyl 2-(5-iodo-3-methylsulfinyl-1-benzofuran-2-yl)acetate analogues, viz. ethyl 2-(5-iodo-3-methylsulfinyl-1-benzofuran-2-yl)acetate (Choi et al., 2007) and isopropyl 2-(5-iodo-3-methylsulfinyl-1-benzofuran-2-yl)acetate (Choi et al., 2008). Here we report the crystal structure of the title compound, butyl 2-(5-iodo-3-methylsulfinyl-1-benzofuran-2-yl)acetate (Fig. 1).

The benzofuran unit is essentially planar, with a mean deviation of 0.004 (3) Å from the least-squares plane defined by the nine constituent atoms. The oxygen atom of carbonyl group is disordered over two positions with site–occupancy factors of 0.55 (4) (for atom labelled A) and 0.45 (4) (for atom labelled B), and the butyl group over two positions with site–occupancy factors of 0.76 (2) (for atom labelled A) and 0.24 (2) (for atom labelled B), respectively, in Fig. 1. The molecular packing (Fig. 2) is stabilized by intermolecular C—H···π interactions between a methyl H atom of the methylsulfinyl group and the benzene ring of the benzofuran unit, with a C15—H15B···Cgi separation of 2.97 Å (Table 1 and Fig. 2; Cg is the centroid of the C2–C7 benzene ring, symmetry code as in Fig. 2). The molecular packing is further stabilized by an I···O halogen bond (Politzer et al., 2007) between the iodine atom and the oxygen of a neighbouring S═O unit, with an I···O4iv distance of 3.173 (3) Å (symmetry code as in Fig. 2). In addition, weak intermolecular C—H···O hydrogen bonds in the structure are observed (Table 1 & Fig. 2).

Experimental

77% 3-chloroperoxybenzoic acid (123 mg, 0.55 mmol) was added in small portions to a stirred solution of butyl 2-(5-iodo-3-methylsulfanyl-1-benzofuran-2-yl)acetate (202 mg, 0.5 mmol) in dichloromethane (30 ml) at 273 K. After being stirred for 3 h at room temperature, the mixture was washed with saturated sodium bicarbonate solution and the organic layer was separated, dried over magnesium sulfate, filtered and concentrated in vacuum. The residue was purified by column chromatography (hexane-ethyl acetate, 1:2 v/v) to afford the title compound as a colorless solid [yield 80%, m.p. 407-408 K; Rf = 0.54 (hexane-ethyl acetate, 1;2 v/v)]. Single crystals suitable for X-ray diffraction were prepared by evaporation of a solution of the title compound in acetone at room temperature. Spectroscopic analysis: 1H NMR (CDCl3, 400 MHz) δ 0.92 (t, J = 7.68 Hz, 3H), 1.31-1.42 (m, 2H),1.59-1.67 (m, 2H), 3.07 (s, 3H), 4.03 (s, 2H), 4.15 (t, J = 6.6 Hz, 2H), 7.29 (d, J = 8.8 Hz, 1H), 7.66 (dd, J = 8.8 Hz and J = 1.84 Hz, 1H), 8.29 (d, J = 1.84 Hz, 1H); EI-MS 420 [M+].

Refinement

All H atoms were geometrically positioned and refined using a riding model, with C—H = 0.95 Å for the aryl, 0.99 Å for the methylene, and 0.98 Å for the methyl H atoms. Uiso(H) = 1.2Ueq(C) for the aryl and methylene H atoms, and 1.5Ueq(C) for methyl H atoms. The oxygen atom of carbonyl group and butyl group were found to be disordered over two positions and modelled with site-occupancy factors, from refinement of 0.55 (4) (O3A) and 0.45 (4) (O3B), and 0.76 (2) (C11A–C14A)) and 0.24 (2) (C11B–C14B), respectively. The displacement ellipsoids of part B were restrained using command ISOR (0.01), both sets of O and C atoms were restrained using the command DELU and the distances of C—C were restrained to 1.480 (2) Å using command DFIX. The distances of C═O were restrained to 0.001 Å using command SADI.

Figures

Fig. 1.
The molecular structure of the title compound, showing displacement ellipsoids drawn at the 30% probability level. The oxygen atom of carbonyl group and butyl group are disordered over two positions with site–occupancy factors, from refinement ...
Fig. 2.
C—H···π, I···O halogen bond and C—H···O interactions (dotted lines) in the title compound. Cg denotes ring centroid. The disordered component of the oxygen ...

Crystal data

C15H17IO4SF(000) = 832
Mr = 420.25Dx = 1.633 Mg m3
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P_2ynCell parameters from 5617 reflections
a = 10.298 (1) Åθ = 2.3–28.1°
b = 15.208 (1) ŵ = 2.01 mm1
c = 11.109 (1) ÅT = 100 K
β = 100.669 (1)°Block, colorless
V = 1709.7 (3) Å30.20 × 0.20 × 0.10 mm
Z = 4

Data collection

Bruker SMART CCD diffractometer3009 independent reflections
Radiation source: fine-focus sealed tube2581 reflections with I > 2σ(I)
graphiteRint = 0.017
Detector resolution: 10.0 pixels mm-1θmax = 25.0°, θmin = 2.3°
[var phi] and ω scansh = −12→12
Absorption correction: multi-scan (SADABS; Sheldrick, 1999)k = −11→18
Tmin = 0.673, Tmax = 0.822l = −13→13
8829 measured reflections

Refinement

Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.032Hydrogen site location: difference Fourier map
wR(F2) = 0.085H-atom parameters constrained
S = 1.07w = 1/[σ2(Fo2) + (0.0408P)2 + 1.6213P] where P = (Fo2 + 2Fc2)/3
3009 reflections(Δ/σ)max < 0.001
222 parametersΔρmax = 0.71 e Å3
43 restraintsΔρmin = −0.61 e Å3

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.
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 > 2sigma(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)

xyzUiso*/UeqOcc. (<1)
I0.98000 (3)0.639217 (19)0.38449 (3)0.07282 (14)
S0.60101 (8)0.31517 (5)0.45617 (8)0.0460 (2)
O10.4557 (2)0.45536 (17)0.1655 (2)0.0562 (6)
O20.1138 (3)0.3286 (2)0.2161 (3)0.0849 (10)
O3A0.2384 (15)0.4110 (13)0.3619 (13)0.074 (3)0.55 (4)
O3B0.2198 (16)0.4365 (10)0.323 (2)0.075 (4)0.45 (4)
O40.7434 (2)0.29309 (16)0.4707 (2)0.0588 (6)
C10.5648 (3)0.3928 (2)0.3367 (3)0.0411 (7)
C20.6417 (3)0.4674 (2)0.3106 (3)0.0404 (7)
C30.7603 (3)0.5070 (2)0.3653 (3)0.0438 (7)
H30.81190.48430.43840.053*
C40.7992 (3)0.5803 (2)0.3085 (3)0.0520 (8)
C50.7244 (4)0.6150 (3)0.2018 (4)0.0651 (10)
H50.75510.66570.16580.078*
C60.6077 (4)0.5773 (3)0.1483 (3)0.0628 (10)
H60.55550.60090.07600.075*
C70.5693 (3)0.5030 (2)0.2046 (3)0.0492 (8)
C80.4576 (3)0.3885 (2)0.2479 (3)0.0474 (8)
C90.3408 (3)0.3292 (3)0.2250 (4)0.0581 (9)
H9A0.36450.27240.26680.070*
H9B0.31650.31760.13600.070*
C100.2236 (4)0.3677 (3)0.2695 (4)0.0609 (10)
C12−0.1176 (4)0.3369 (5)0.1516 (6)0.121 (2)
H12A−0.11860.27440.12660.145*0.759 (19)
H12B−0.20180.34840.17960.145*0.759 (19)
H12C−0.09300.27480.14150.145*0.241 (19)
H12D−0.20160.34070.18250.145*0.241 (19)
C13−0.1166 (8)0.3909 (7)0.0415 (9)0.180 (4)
H13A−0.03640.37890.00690.216*0.759 (19)
H13B−0.11860.45430.06140.216*0.759 (19)
H13C−0.03450.36870.01780.216*0.241 (19)
H13D−0.09050.44830.08080.216*0.241 (19)
C11A−0.0090 (6)0.3482 (8)0.2583 (7)0.077 (2)0.759 (19)
H11A−0.00770.40930.28940.092*0.759 (19)
H11B−0.02080.30770.32510.092*0.759 (19)
C14A−0.2370 (12)0.3655 (11)−0.0466 (14)0.175 (6)0.759 (19)
H14A−0.30890.4062−0.03920.263*0.759 (19)
H14B−0.26270.3056−0.02860.263*0.759 (19)
H14C−0.21910.3679−0.13010.263*0.759 (19)
C11B−0.0098 (17)0.3900 (18)0.223 (3)0.077 (7)0.241 (19)
H11C−0.02220.39830.30890.093*0.241 (19)
H11D−0.00170.44800.18510.093*0.241 (19)
C14B−0.185 (4)0.424 (3)−0.0790 (17)0.141 (14)0.241 (19)
H14D−0.26810.3920−0.10410.211*0.241 (19)
H14E−0.12840.4149−0.13990.211*0.241 (19)
H14F−0.20340.4869−0.07280.211*0.241 (19)
C150.5826 (5)0.3860 (3)0.5804 (3)0.0654 (10)
H15A0.60710.35410.65790.098*
H15B0.49040.40530.57050.098*
H15C0.64000.43740.58070.098*

Atomic displacement parameters (Å2)

U11U22U33U12U13U23
I0.06107 (19)0.0672 (2)0.0881 (2)−0.02167 (12)0.00823 (14)0.01316 (14)
S0.0464 (4)0.0356 (4)0.0542 (5)−0.0007 (3)0.0051 (4)−0.0015 (3)
O10.0494 (13)0.0693 (16)0.0437 (13)0.0025 (12)−0.0075 (10)−0.0056 (12)
O20.0446 (14)0.110 (2)0.097 (2)−0.0015 (15)0.0058 (14)−0.053 (2)
O3A0.072 (5)0.087 (6)0.064 (5)−0.013 (5)0.016 (4)−0.030 (4)
O3B0.069 (5)0.068 (5)0.088 (7)0.000 (4)0.014 (5)−0.030 (5)
O40.0513 (14)0.0568 (15)0.0648 (15)0.0124 (11)0.0019 (11)0.0010 (12)
C10.0395 (16)0.0378 (15)0.0440 (17)0.0028 (13)0.0030 (13)−0.0046 (13)
C20.0405 (16)0.0447 (17)0.0350 (15)0.0049 (13)0.0045 (12)−0.0031 (13)
C30.0431 (17)0.0464 (18)0.0406 (16)0.0009 (14)0.0044 (13)0.0022 (14)
C40.0506 (19)0.052 (2)0.053 (2)−0.0045 (16)0.0100 (15)0.0052 (16)
C50.075 (3)0.062 (2)0.060 (2)−0.003 (2)0.015 (2)0.0218 (19)
C60.069 (2)0.075 (3)0.0423 (19)0.006 (2)0.0048 (17)0.0150 (18)
C70.0499 (19)0.057 (2)0.0394 (17)0.0066 (16)0.0057 (14)−0.0018 (15)
C80.0426 (17)0.0495 (18)0.0475 (18)0.0035 (14)0.0013 (14)−0.0100 (15)
C90.0427 (18)0.057 (2)0.069 (2)0.0006 (16)−0.0049 (16)−0.0229 (18)
C100.051 (2)0.065 (2)0.066 (2)−0.0061 (17)0.0064 (18)−0.0211 (19)
C120.053 (3)0.160 (6)0.149 (6)0.002 (3)0.021 (3)−0.065 (5)
C130.152 (8)0.215 (10)0.166 (9)0.103 (8)0.010 (7)0.029 (8)
C11A0.049 (3)0.095 (6)0.087 (4)0.004 (3)0.016 (3)−0.018 (4)
C14A0.148 (8)0.195 (10)0.167 (9)0.043 (7)−0.010 (7)−0.002 (7)
C11B0.064 (9)0.088 (11)0.084 (11)0.011 (8)0.023 (8)−0.007 (8)
C14B0.142 (16)0.142 (16)0.139 (16)0.015 (10)0.027 (10)0.012 (9)
C150.090 (3)0.058 (2)0.051 (2)0.010 (2)0.022 (2)−0.0034 (18)

Geometric parameters (Å, °)

I—C42.098 (4)C9—H9B0.9900
I—O4i13.531 (3)C12—C131.476 (11)
S—O41.484 (2)C12—C11B1.480 (2)
S—C11.764 (3)C12—C11A1.481 (2)
S—C151.788 (4)C12—H12A0.9900
O1—C81.366 (4)C12—H12B0.9900
O1—C71.376 (4)C12—H12C0.9900
O2—C101.317 (5)C12—H12D0.9900
O2—C11A1.459 (7)C13—C14B1.4797 (15)
O2—C11B1.59 (3)C13—C14A1.481 (2)
O3A—O3B0.590 (16)C13—H13A0.9900
O3A—C101.205 (5)C13—H13B0.9900
O3B—C101.205 (5)C13—H13C0.9900
C1—C81.339 (4)C13—H13D0.9900
C1—C21.444 (4)C11A—H11A0.9900
C2—C71.383 (4)C11A—H11B0.9900
C2—C31.395 (4)C14A—H14A0.9800
C3—C41.377 (5)C14A—H14B0.9800
C3—H30.9500C14A—H14C0.9800
C4—C51.392 (5)C11B—H11C0.9900
C5—C61.364 (6)C11B—H11D0.9900
C5—H50.9500C14B—H14D0.9800
C6—C71.384 (5)C14B—H14E0.9800
C6—H60.9500C14B—H14F0.9800
C8—C91.486 (5)C15—H15A0.9800
C9—C101.505 (5)C15—H15B0.9800
C9—H9A0.9900C15—H15C0.9800
C4—I—O4i52.14 (10)C11B—C12—H12C113.6
O4—S—C1107.46 (15)C11A—C12—H12C91.8
O4—S—C15107.26 (19)H12B—C12—H12C117.5
C1—S—C1598.03 (17)C13—C12—H12D113.3
C8—O1—C7106.0 (2)C11B—C12—H12D113.4
C10—O2—C11A119.1 (4)C11A—C12—H12D107.1
C10—O2—C11B109.9 (4)H12A—C12—H12D100.9
O3B—O3A—C1075.8 (4)H12C—C12—H12D110.7
O3A—O3B—C1075.8 (4)C12—C13—C14B149.8 (19)
C8—C1—C2107.4 (3)C12—C13—C14A105.6 (10)
C8—C1—S123.5 (3)C12—C13—H13A110.6
C2—C1—S129.1 (2)C14B—C13—H13A90.2
C7—C2—C3119.5 (3)C14A—C13—H13A110.6
C7—C2—C1104.4 (3)C12—C13—H13B110.6
C3—C2—C1136.0 (3)C14B—C13—H13B81.2
C4—C3—C2117.1 (3)C14A—C13—H13B110.6
C4—C3—H3121.5H13A—C13—H13B108.8
C2—C3—H3121.5C12—C13—H13C99.6
C3—C4—C5122.3 (3)C14B—C13—H13C99.4
C3—C4—I118.3 (2)C14A—C13—H13C112.8
C5—C4—I119.4 (3)H13B—C13—H13C116.6
C6—C5—C4121.1 (4)C12—C13—H13D99.6
C6—C5—H5119.4C14B—C13—H13D98.4
C4—C5—H5119.4C14A—C13—H13D130.3
C5—C6—C7116.6 (3)H13A—C13—H13D99.0
C5—C6—H6121.7H13C—C13—H13D104.1
C7—C6—H6121.7O2—C11A—C12106.9 (5)
O1—C7—C2110.8 (3)O2—C11A—H11A110.3
O1—C7—C6125.8 (3)C12—C11A—H11A110.3
C2—C7—C6123.4 (3)O2—C11A—H11B110.3
C1—C8—O1111.4 (3)C12—C11A—H11B110.3
C1—C8—C9133.4 (3)H11A—C11A—H11B108.6
O1—C8—C9115.2 (3)C13—C14A—H14A109.5
C8—C9—C10112.4 (3)C13—C14A—H14B109.5
C8—C9—H9A109.1C13—C14A—H14C109.5
C10—C9—H9A109.1C12—C11B—O2100.4 (12)
C8—C9—H9B109.1C12—C11B—H11C111.7
C10—C9—H9B109.1O2—C11B—H11C111.7
H9A—C9—H9B107.9C12—C11B—H11D111.7
O3A—C10—O2126.3 (7)O2—C11B—H11D111.7
O3B—C10—O2120.6 (9)H11C—C11B—H11D109.5
O3A—C10—C9120.6 (8)C13—C14B—H14D109.5
O3B—C10—C9126.7 (9)C13—C14B—H14E109.5
O2—C10—C9110.5 (3)H14D—C14B—H14E109.5
C13—C12—C11B91.3 (16)C13—C14B—H14F109.5
C13—C12—C11A118.6 (8)H14D—C14B—H14F109.5
C13—C12—H12A107.7H14E—C14B—H14F109.5
C11B—C12—H12A130.0S—C15—H15A109.5
C11A—C12—H12A107.7S—C15—H15B109.5
C13—C12—H12B107.7H15A—C15—H15B109.5
C11B—C12—H12B110.4S—C15—H15C109.5
C11A—C12—H12B107.7H15A—C15—H15C109.5
H12A—C12—H12B107.1H15B—C15—H15C109.5
C13—C12—H12C113.4
O4—S—C1—C8135.5 (3)C7—O1—C8—C10.9 (4)
C15—S—C1—C8−113.5 (3)C7—O1—C8—C9178.5 (3)
O4—S—C1—C2−41.2 (3)C1—C8—C9—C1096.8 (5)
C15—S—C1—C269.8 (3)O1—C8—C9—C10−80.1 (4)
C8—C1—C2—C70.7 (3)O3B—O3A—C10—O2−88 (3)
S—C1—C2—C7177.8 (3)O3B—O3A—C10—C9112 (3)
C8—C1—C2—C3179.9 (4)O3A—O3B—C10—O2111 (3)
S—C1—C2—C3−3.0 (5)O3A—O3B—C10—C9−87 (3)
C7—C2—C3—C4−0.5 (4)C11A—O2—C10—O3A10.1 (16)
C1—C2—C3—C4−179.6 (3)C11B—O2—C10—O3A39 (2)
C2—C3—C4—C50.5 (5)C11A—O2—C10—O3B−23.3 (17)
C2—C3—C4—I−178.0 (2)C11B—O2—C10—O3B6(2)
O4i—I—C4—C355.4 (2)C11A—O2—C10—C9172.1 (6)
O4i—I—C4—C5−123.1 (4)C11B—O2—C10—C9−159.0 (14)
C3—C4—C5—C60.1 (6)C8—C9—C10—O3A−36.2 (13)
I—C4—C5—C6178.6 (3)C8—C9—C10—O3B−2.8 (18)
C4—C5—C6—C7−0.7 (6)C8—C9—C10—O2160.6 (4)
C8—O1—C7—C2−0.4 (4)C11B—C12—C13—C14B−158 (4)
C8—O1—C7—C6−179.7 (3)C11A—C12—C13—C14B−168 (3)
C3—C2—C7—O1−179.6 (3)C11B—C12—C13—C14A−168.6 (12)
C1—C2—C7—O1−0.2 (3)C11A—C12—C13—C14A−179.2 (8)
C3—C2—C7—C6−0.2 (5)C10—O2—C11A—C12150.7 (6)
C1—C2—C7—C6179.1 (3)C11B—O2—C11A—C1273.5 (9)
C5—C6—C7—O1−180.0 (3)C13—C12—C11A—O2−59.2 (10)
C5—C6—C7—C20.8 (6)C11B—C12—C11A—O2−81 (2)
C2—C1—C8—O1−1.0 (4)C13—C12—C11B—O2−98.9 (16)
S—C1—C8—O1−178.3 (2)C11A—C12—C11B—O262 (2)
C2—C1—C8—C9−178.0 (3)C10—O2—C11B—C12176.1 (12)
S—C1—C8—C94.6 (5)C11A—O2—C11B—C12−69.0 (8)

Symmetry codes: (i) −x+3/2, y−1/2, −z+1/2.

Hydrogen-bond geometry (Å, °)

D—H···AD—HH···AD···AD—H···A
C15—H15B···Cgii0.982.973.722 (4)134
C5—H5···O4iii0.952.463.370 (4)160
C9—H9B···O4iv0.992.503.376 (4)147

Symmetry codes: (ii) −x+1, −y+1, −z+1; (iii) −x+3/2, y+1/2, −z+1/2; (iv) x−1/2, −y+1/2, z−1/2.

Footnotes

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG2458).

References

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