research communications\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 72| Part 4| April 2016| Pages 477-481
https://doi.org/10.1107/S2056989016003777

Comparison of the crystal structures of methyl 4-bromo-2-(meth­­oxy­meth­­oxy)benzoate and 4-bromo-3-(meth­­oxy­meth­­oxy)benzoic acid

CROSSMARK_Color_square_no_text.svg
P. A. Suchetan,a V. Suneetha,b S. Naveen,c N. K. Lokanathd and P. Krishna Murthyb*

aDepartment of Chemistry, University College of Science, Tumkur University, Tumkur 572 103, India, bDepartment of Chemistry, Bapatla Engineering College (Autonomous), Bapatla A. P., India, cInstitution of Excellence, University of Mysore, Manasagangotri, Mysuru-6, India, and dDepartment of Physics, University of Mysore, Manasagangotri, Mysuru-6, India
*Correspondence e-mail: krishnamurthypotla@gmail.com

Edited by H. Stoeckli-Evans, University of Neuchâtel, Switzerland (Received 26 February 2016; accepted 5 March 2016; online 11 March 2016)

The title compounds, C10H11BrO4, (I), and C9H9BrO4, (II), are derivatives of bromo–hy­droxy–benzoic acids. Compound (II) crystallizes with two independent mol­ecules (A and B) in the asymmetric unit. In both (I) and (II), the O—CH2—O—CH3 side chain is not in its fully extended conformation; the O—C—O—C torsion angle is 67.3 (3) ° in (I), and −65.8 (3) and −74.1 (3)° in mol­ecules A and B, respectively, in compound (II). In the crystal of (I), mol­ecules are linked by C—H⋯O hydrogen bonds, forming C(5) chains along [010]. The chains are linked by short Br⋯O contacts [3.047 (2) Å], forming sheets parallel to the bc plane. The sheets are linked via C—H⋯π inter­actions, forming a three-dimensional architecture. In the crystal of (II), mol­ecules A and B are linked to form R22(8) dimers via two strong O—H⋯O hydrogen bonds. These dimers are linked into ⋯A–B⋯A–B⋯A–B⋯ [C22(15)] chains along [011] by C—H⋯O hydrogen bonds. The chains are linked by slipped parallel π–π inter­actions [inter-centroid distances = 3.6787 (18) and 3.8431 (17) Å], leading to the formation of slabs parallel to the bc plane.

CCDC references: 1457944; 1457943

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1. Chemical context

Ester derivatives of many compounds exhibit a variety of pharmacological properties, such as anti­cancer, anti­tumor and anti­microbial activities (Anadu et al., 2006[Anadu, N. O., Davisson, V. J. & Cushman, M. (2006). J. Med. Chem. 49, 3897-3905.]; Bartzatt et al., 2004[Bartzatt, R., Cirillo, S. L. & Cirillo, J. D. (2004). Physiol. Chem. Phys. Med. NMR, 36, 85-94.]; Bi et al., 2012[Bi, Y., Xu, J., Sun, F., Wu, X., Ye, W., Sun, Y. & Huang, W. (2012). Molecules, 17, 8832-8841.]). Salicylic acid and derivatives of salicylic acid are of great biological importance. For example, they are known for their analgesic and anti-inflammatory activities in the treatment of rheumatoid arthritis (Anderson et al., 2014[Anderson, K., Wherle, L., Park, M., Nelson, K. & Nguyen, L. (2014). Am. Heal. Drug. Benefits, 7, 231-235.]; Hardie, 2013[Hardie, D. G. (2013). Diabetes, 62, 2164-2172.]). They are also known for their use as anti­bacterial and anti­mycobacterial agents (Silva et al., 2008[Silva, M. da, Menezes, C. M., Ferreira, E. I., Leite, C. Q., Sato, D. N., Correia, C. C., Pimenta, C. P. & Botelho, K. C. (2008). Chem. Biol. Drug Des. 71, 167-172.]). In view of the above, compounds (I)[link] and (II)[link] were synthesized and we report herein on their crystal structures.

[Scheme 1]

2. Structural commentary

The mol­ecular structure of compound (I)[link], is illustrated in Fig. 1[link]. The –O–CH2–O-CH3 side chain is not in its fully extended conformation, with torsion angle O3—C9—O4—C10 being 67.3 (3)°. The dihedral angle between the benzene ring and the ester segment (O1/C7/O2/C8) is 14.5 (2)°, while the plane through atoms C10/O4/C9 of the meth­oxy­meth­oxy side chain is inclined to the benzene ring by 82.5 (3)°.

[Figure 1]
Figure 1
A view of the mol­ecular structure of compound (I)[link], showing the atom labelling. Displacement ellipsoids are drawn at the 50% probability level.

The mol­ecular structure of compound (II)[link], is illustrated in Fig. 2[link]. It crystallizes with two independent mol­ecules (A and B) in the asymmetric unit. The conformations of the two mol­ecules differ in the torsion angles of the –O–CH2–O–CH3 side chains and the orientation of the –COO– group with respect to the benzene ring, as shown in the AutoMolFit diagram (Fig. 3[link]; Spek, 2009[Spek, A. L. (2009). Acta Cryst. D65, 148-155.]). The –O–CH2–O–CH3 side chains in mol­ecules A and B are not in their fully extended conformation; torsion angle O3A—C8A—O4A—C9A in mol­ecule A is −65.8 (3)°, and torsion angle O3B—C8B—O4B–-C9B in mol­ecule B is −74.1 (3)°. The dihedral angle between the benzene ring and the plane through atoms C8A/O4A/C9A of the meth­oxy­meth­oxy side chain in mol­ecule A is 79.2 (3)°, while the corresponding dihedral angle in mol­ecule B, between the benzene ring and plane C9B/O4B/O8B is 67.1 (3)°. This is less than in compound (I)[link] and further, the dihedral angle between the benzene ring and the –COO– group is 6.6 (4)° in A and 9.1 (4)° in B; also less than observed in compound (I)[link], viz. 14.5 (2)°.

[Figure 2]
Figure 2
A view of the mol­ecular structure of compound (II)[link], showing the atom labelling. Displacement ellipsoids are drawn at the 50% probability level. O—H⋯O hydrogen bonds are shown as dashed lines (see Table 2[link]).
[Figure 3]
Figure 3
A view of the mol­ecular fit of mol­ecules A (black) and B (red) of compound (II)[link].

3. Supra­molecular features

In the crystal of (I)[link], mol­ecules are linked by structure-directing C8—H8A⋯O1 hydrogen bonds (Table 1[link] and Fig. 4[link]), forming C(5) chains along the b axis. Adjacent chains are linked by short Br1⋯O4i contacts [dBr⋯O = 3.047 (2) Å; symmetry code (i): −x, −y, −z + 1] leading to the formation of sheets parallel to plane (100). The sheets are linked by C5—H5⋯π inter­actions (centroid of the benzene ring C1–C6) along the a-axis direction, forming a three-dimensional structure (Table 1[link] and Fig. 5[link]).

Table 1
Hydrogen-bond geometry (Å, °) for (I)[link]

Cg1 is the centroid of the C1–C6 benzene ring.
D—H⋯A D—H H⋯A D⋯A D—H⋯A
C8—H8A⋯O1i 0.98 2.58 3.439 (5) 147
C5—H5⋯Cg1ii 0.95 2.95 3.765 (4) 129
Symmetry codes: (i) [-x, y+{\script{1\over 2}}, -z+{\script{3\over 2}}]; (ii) [-x+{\script{1\over 2}}, y-{\script{1\over 2}}, z].
[Figure 4]
Figure 4
A view along the a axis of the crystal packing of compound (I)[link]. C—H⋯O and Br⋯O inter­actions are shown as dashed lines (see Table 1[link]). H atoms not involved in these inter­actions have been omitted for clarity.
[Figure 5]
Figure 5
A view along the b axis of the crystal packing of compound (I)[link]. C—H⋯O and Br⋯O inter­actions are shown as dashed lines (see Table 1[link]). H atoms not involved in these inter­actions have been omitted for clarity.

In the crystal of (II)[link], mol­ecules A and B are linked via two strong O—H⋯O hydrogen bonds, namely, O2A–-H2A⋯O1B and O2B–-H2B⋯O1A, forming dimers with an R22(8) ring motif (Table 2[link] and Fig. 6[link]). Adjacent dimers are linked by C8B—H8B2⋯·O3A hydrogen bonds (Table 2[link]), forming chains along [011]. The chains are linked via slipped parallel π–π inter­actions between B mol­ecules [Cg2⋯Cg2ii distance = 3.6792 (18) Å; Cg2 is the centroid of ring C1B–C6B; inter-planar distance = 3.3691 (12) Å; slippage = 1.477 Å; symmetry code (ii): −x, −y + 2, −z + 1], and between A and B mol­ecules [Cg1⋯Cg2iii = 3.8431 (17) Å; Cg1 is the centroid of the ring C1A–C6A; inter-planar distance = 3.5538 (12) Å; slippage 1.98 Å; symmetry code (iii): −x + 1, −y + 1, −z + 1], thus forming slabs lying parallel to the bc plane (Fig. 7[link]).

Table 2
Hydrogen-bond geometry (Å, °) for (II)[link]

D—H⋯A D—H H⋯A D⋯A D—H⋯A
O2A—H2A⋯O1B 0.84 (5) 1.80 (5) 2.635 (4) 178 (5)
O2B—H2B⋯O1A 0.82 (5) 1.81 (5) 2.621 (4) 167 (5)
C8B—H8B2⋯O3Ai 0.99 2.52 3.420 (4) 150
Symmetry code: (i) x-1, y+1, z-1.
[Figure 6]
Figure 6
A partial view along the a axis of the crystal packing of compound (II)[link]. O—H⋯O and C—-H⋯O hydrogen bonds are shown as dashed lines (see Table 2[link]). H atoms not involved in these inter­actions have been omitted for clarity.
[Figure 7]
Figure 7
A view of the π–π stacking observed in the crystal of (II)[link]; mol­ecule A green, mol­ecule B blue.

4. Synthesis and crystallization

Synthesis of methyl 4-bromo-2-(meth­oxy­meth­oxy) benzoate (I)

To a stirred solution of methyl 4-bromo-2-hy­droxy-benzoate (1.0 g, 4.32 mmol) in di­chloro­methane (15 ml) (DCM) was added N,N-diiso­propyl­ethyl­amine (1.5 ml, 8.65 mmol) (DIPEA), followed by chloro­methyl methyl ether (0.49 ml, 6.49 mmol) (MOM-Cl), at 273 K and the reaction mixture was stirred at room temperature overnight. The reaction mixture was then diluted with water (50 ml) and the organic layer was extracted with ethyl acetate (2 × 50 ml). The combined organic layers were washed successively with water, brine, dried over anhydrous magnesium sulfate (MgSO4), filtered and the filtrate was concentrated under reduced pressure. The crude product was purified by column chromatography using ethyl acetate:hexane (1:9) as eluent to afford (I)[link] as an off-white coloured solid (yield: 0.851g, 71.4%; m.p.: 353 K). 1H NMR (DMSO-d6, 400 MHz, p.p.m.): δ = 3.39 (3H, s), 3.79 (3H, s), 5.29 (2H, s) 7.29 (1H, dd, J = 1.20 Hz, 1.20 Hz), 7.44 (1H, s), 7.60 (1H, d, J = 8.00 Hz).

Synthesis of 4-bromo-3-(meth­oxy­meth­oxy)benzoic acid (II)

A mixture of methyl 4-bromo-3-(meth­oxy­meth­oxy) benzoate (1 g, 3.63 mmol), 10% aqueous potassium hydroxide (0.61 g, 3.0 mmol), tetra­hydro­furan (5 ml) and methanol (20 ml) was stirred at room temperature for 2 h. The mixture was then concentrated to remove organic solvents and the aqueous layer was acidified with 6 N hydro­chloric acid. The precipitated solid was filtered, dried under vacuum to afford (II)[link] as a white solid (yield: 0.86g, 91%; m.p.: 433 K). 1H NMR (DMSO-d6, 400 MHz, p.p.m.): δ = 3.39 (3H, s), 5.28 (2H, s), 7.26 (1H, dd, J = 1.20 Hz, 1.20 Hz), 7.40 (1H, s), 7.59 (1H, d, J = 8.00 Hz), 12.90 (1H, s).

Single crystals of compounds (I)[link] and (II)[link], suitable for X-ray diffraction studies, were obtained by solvent evaporation using methanol:chloro­form (2:1) as the solvent mixture.

5. Refinement details

Crystal data, data collection and structure refinement details are summarized in Table 3[link]. The H atoms of the OH groups in (II)[link] were located in a difference Fourier map and refined with a distance restraint: O—H = 0.84 (5) Å. The C-bound H atoms in (I)[link] and (II)[link] were positioned with idealized geometry and refined using a riding model: C—H = 0.95–0.99 Å, with Uiso(H) = 1.5Ueq(C-meth­yl) and 1.2Ueq(C) for other H atoms. In the final cycles of refinement reflection (0 0 2) in (I)[link] and reflections (4 1 0), (6 − 4 6), (5 − 5 7), (4 2 0) and (0 − 1 6) in (II)[link] were omitted due to large differences in F2obs and F2calc, considerably improving the values of R1, wR2, and GOF.

Table 3
Experimental details

  (I) (II)
Crystal data
Chemical formula C10H11BrO4 C9H9BrO4
Mr 275.10 261.07
Crystal system, space group Orthorhombic, Pbca Triclinic, P[\overline{1}]
Temperature (K) 173 173
a, b, c (Å) 8.8487 (13), 8.1514 (11), 29.284 (4) 7.7211 (3), 9.6881 (4), 14.2627 (6)
α, β, γ (°) 90, 90, 90 73.635 (1), 77.664 (1), 69.577 (1)
V (Å3) 2112.2 (5) 951.40 (7)
Z 8 4
Radiation type Cu Kα Cu Kα
μ (mm−1) 5.27 5.82
Crystal size (mm) 0.29 × 0.22 × 0.19 0.28 × 0.25 × 0.22
 
Data collection
Diffractometer Bruker APEXII Bruker APEXII
Absorption correction Multi-scan (SADABS; Bruker, 2009[Bruker (2009). APEX2, SADABS, SAINT-Plus and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA.]) Multi-scan (SADABS; Bruker, 2009[Bruker (2009). APEX2, SADABS, SAINT-Plus and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA.])
Tmin, Tmax 0.286, 0.367 0.245, 0.278
No. of measured, independent and observed [I > 2σ(I)] reflections 8999, 1751, 1720 11112, 3031, 2930
Rint 0.052 0.040
(sin θ/λ)max (Å−1) 0.590 0.585
 
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.052, 0.139, 1.14 0.039, 0.120, 1.09
No. of reflections 1751 3031
No. of parameters 138 261
No. of restraints 0 2
H-atom treatment H-atom parameters constrained H atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å−3) 1.87, −0.97 0.67, −1.08
Computer programs: APEX2, SAINT-Plus and XPREP (Bruker, 2009[Bruker (2009). APEX2, SADABS, SAINT-Plus and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA.]), SHELXS97 and SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]) and Mercury (Macrae et al., 2008[Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466-470.]).

Supporting information

CCDC references: 1457944; 1457943

Crystal structure: contains datablocks I, II, Global. DOI: https://doi.org/10.1107/S2056989016003777/su5284sup1.cif

Supporting information file. DOI: https://doi.org/10.1107/S2056989016003777/su5284Isup2.cml

Supporting information file. DOI: https://doi.org/10.1107/S2056989016003777/su5284IIsup3.cml

checkCIF report


Computing details top

For both compounds, data collection: APEX2 (Bruker, 2009); cell refinement: APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus and XPREP (Bruker, 2009). Program(s) used to solve structure: SHELXS97 (Sheldrick, 2008) for (I); SHELXS97 (Sheldrick, 20008) for (II). For both compounds, program(s) used to refine structure: SHELXL97 (Sheldrick, 2008). Molecular graphics: Mercury (Macrae et al., 2008) and PLATON (Spek, 2009) for (I); Mercury (Macrae et al., 2008) for (II). Software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009) for (I); SHELXL97 (Sheldrick, 2008) for (II).

(I) Methyl 4-bromo-2-(methoxymethoxy)benzoate top
Crystal data top
C10H11BrO4Dx = 1.730 Mg m−3
Mr = 275.10Melting point: 353 K
Orthorhombic, PbcaCu Kα radiation, λ = 1.54178 Å
Hall symbol: -P 2ac 2abCell parameters from 108 reflections
a = 8.8487 (13) Åθ = 5.8–65.5°
b = 8.1514 (11) ŵ = 5.27 mm−1
c = 29.284 (4) ÅT = 173 K
V = 2112.2 (5) Å3Prism, colourless
Z = 80.29 × 0.22 × 0.19 mm
F(000) = 1104
Data collection top
Bruker APEXII
diffractometer		1751 independent reflections
Radiation source: fine-focus sealed tube1720 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.052
phi and φ scansθmax = 65.5°, θmin = 5.8°
Absorption correction: multi-scan
(SADABS; Bruker, 2009)		h = −10→10
Tmin = 0.286, Tmax = 0.367k = −9→9
8999 measured reflectionsl = −33→26
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)] = 0.052Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.139H-atom parameters constrained
S = 1.14 w = 1/[σ2(Fo2) + (0.0922P)2 + 2.3421P]
where P = (Fo2 + 2Fc2)/3
1751 reflections(Δ/σ)max = 0.001
138 parametersΔρmax = 1.87 e Å−3
0 restraintsΔρmin = −0.97 e Å−3
Special details top

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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
xyzUiso*/Ueq
C10.0849 (4)0.2964 (5)0.54070 (13)0.0228 (8)
C2−0.0101 (4)0.2114 (4)0.56954 (11)0.0224 (7)
H2−0.07200.12560.55810.027*
C3−0.0142 (4)0.2529 (4)0.61565 (12)0.0206 (8)
C40.0827 (3)0.3778 (4)0.63243 (12)0.0215 (7)
C50.1783 (4)0.4566 (4)0.60112 (11)0.0250 (7)
H50.24370.54040.61200.030*
C60.1816 (4)0.4177 (4)0.55544 (11)0.0256 (7)
H60.24780.47230.53490.031*
C70.0819 (3)0.4299 (4)0.68120 (12)0.0218 (8)
C80.2085 (4)0.5894 (5)0.73653 (12)0.0315 (8)
H8A0.12420.66550.74140.047*
H8B0.30430.64760.74080.047*
H8C0.20160.49920.75850.047*
C9−0.1952 (4)0.0417 (4)0.63083 (11)0.0232 (7)
H9A−0.26640.00890.65530.028*
H9B−0.25560.07790.60420.028*
C10−0.0340 (4)−0.1675 (4)0.65656 (13)0.0326 (8)
H10A0.0292−0.08580.67200.049*
H10B0.0293−0.25840.64590.049*
H10C−0.1099−0.20930.67800.049*
O1−0.0134 (3)0.3974 (3)0.70900 (8)0.0347 (6)
O20.2014 (3)0.5246 (3)0.69070 (8)0.0269 (6)
O3−0.1048 (2)0.1763 (3)0.64664 (8)0.0224 (5)
O4−0.1082 (3)−0.0932 (3)0.61840 (8)0.0260 (6)
Br10.08685 (4)0.23443 (5)0.477705 (13)0.0262 (3)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.031 (2)0.0162 (18)0.021 (2)0.0058 (12)0.0015 (12)−0.0016 (15)
C20.0291 (18)0.0165 (16)0.0216 (18)0.0018 (13)0.0001 (14)−0.0006 (13)
C30.0233 (18)0.0155 (16)0.0229 (19)0.0029 (11)−0.0006 (15)0.0031 (11)
C40.0242 (16)0.0158 (17)0.0244 (18)0.0042 (12)−0.0004 (12)0.0002 (14)
C50.0301 (17)0.0200 (17)0.0249 (17)−0.0020 (13)0.0003 (13)0.0004 (13)
C60.0327 (17)0.0194 (17)0.0248 (17)−0.0029 (13)0.0060 (14)0.0022 (13)
C70.0255 (17)0.0155 (17)0.0245 (18)0.0027 (12)0.0020 (12)0.0013 (14)
C80.0391 (19)0.031 (2)0.0242 (17)−0.0048 (16)−0.0024 (16)−0.0059 (14)
C90.0244 (16)0.0196 (17)0.0255 (17)−0.0025 (13)−0.0020 (13)−0.0008 (13)
C100.0369 (19)0.0235 (19)0.038 (2)0.0020 (17)−0.0027 (16)0.0071 (15)
O10.0416 (15)0.0373 (15)0.0253 (13)−0.0121 (12)0.0078 (11)−0.0078 (11)
O20.0282 (12)0.0298 (13)0.0228 (12)−0.0046 (10)−0.0002 (10)−0.0039 (10)
O30.0267 (11)0.0189 (12)0.0216 (12)−0.0042 (9)0.0033 (9)−0.0019 (10)
O40.0364 (13)0.0200 (13)0.0217 (13)0.0003 (10)0.0016 (9)−0.0009 (9)
Br10.0372 (4)0.0236 (3)0.0177 (4)−0.00163 (13)0.00120 (12)0.00077 (12)
Geometric parameters (Å, º) top
C1—C61.377 (5)C7—O21.339 (4)
C1—C21.378 (5)C8—O21.444 (4)
C1—Br11.913 (4)C8—H8A0.9800
C2—C31.392 (5)C8—H8B0.9800
C2—H20.9500C8—H8C0.9800
C3—O31.363 (4)C9—O41.391 (4)
C3—C41.418 (5)C9—O31.435 (4)
C4—C51.403 (5)C9—H9A0.9900
C4—C71.490 (5)C9—H9B0.9900
C5—C61.375 (5)C10—O41.431 (4)
C5—H50.9500C10—H10A0.9800
C6—H60.9500C10—H10B0.9800
C7—O11.202 (4)C10—H10C0.9800
C6—C1—C2123.2 (3)O2—C8—H8A109.5
C6—C1—Br1119.1 (3)O2—C8—H8B109.5
C2—C1—Br1117.6 (3)H8A—C8—H8B109.5
C1—C2—C3119.2 (3)O2—C8—H8C109.5
C1—C2—H2120.4H8A—C8—H8C109.5
C3—C2—H2120.4H8B—C8—H8C109.5
O3—C3—C2123.3 (3)O4—C9—O3112.3 (3)
O3—C3—C4117.0 (3)O4—C9—H9A109.1
C2—C3—C4119.6 (3)O3—C9—H9A109.1
C5—C4—C3117.8 (3)O4—C9—H9B109.1
C5—C4—C7119.9 (3)O3—C9—H9B109.1
C3—C4—C7122.2 (3)H9A—C9—H9B107.9
C6—C5—C4122.9 (3)O4—C10—H10A109.5
C6—C5—H5118.6O4—C10—H10B109.5
C4—C5—H5118.6H10A—C10—H10B109.5
C5—C6—C1117.2 (3)O4—C10—H10C109.5
C5—C6—H6121.4H10A—C10—H10C109.5
C1—C6—H6121.4H10B—C10—H10C109.5
O1—C7—O2122.7 (3)C7—O2—C8116.0 (3)
O1—C7—C4126.2 (3)C3—O3—C9117.6 (3)
O2—C7—C4111.1 (3)C9—O4—C10112.6 (3)
C6—C1—C2—C32.5 (5)Br1—C1—C6—C5−178.9 (2)
Br1—C1—C2—C3179.8 (2)C5—C4—C7—O1164.0 (3)
C1—C2—C3—O3179.8 (3)C3—C4—C7—O1−14.1 (5)
C1—C2—C3—C4−2.0 (5)C5—C4—C7—O2−14.2 (4)
O3—C3—C4—C5179.1 (3)C3—C4—C7—O2167.8 (3)
C2—C3—C4—C50.8 (5)O1—C7—O2—C8−1.3 (5)
O3—C3—C4—C7−2.8 (5)C4—C7—O2—C8176.9 (3)
C2—C3—C4—C7178.9 (3)C2—C3—O3—C92.7 (4)
C3—C4—C5—C60.0 (5)C4—C3—O3—C9−175.6 (3)
C7—C4—C5—C6−178.1 (3)O4—C9—O3—C367.5 (3)
C4—C5—C6—C10.4 (5)O3—C9—O4—C1067.3 (3)
C2—C1—C6—C5−1.7 (5)
Hydrogen-bond geometry (Å, º) top
Cg1 is the centroid of the C1–C6 benzene ring.
D—H···AD—HH···AD···AD—H···A
C8—H8A···O1i0.982.583.439 (5)147
C5—H5···Cg1ii0.952.953.765 (4)129
Symmetry codes: (i) −x, y+1/2, −z+3/2; (ii) −x+1/2, y−1/2, z.
(II) 4-Bromo-3-(methoxymethoxy)benzoic acid top
Crystal data top
C9H9BrO4Z = 4
Mr = 261.07F(000) = 520
Triclinic, P1Dx = 1.823 Mg m−3
Hall symbol: -P 1Melting point: 433 K
a = 7.7211 (3) ÅCu Kα radiation, λ = 1.54178 Å
b = 9.6881 (4) ÅCell parameters from 123 reflections
c = 14.2627 (6) Åθ = 3.3–64.4°
α = 73.635 (1)°µ = 5.82 mm−1
β = 77.664 (1)°T = 173 K
γ = 69.577 (1)°Prism, colourless
V = 951.40 (7) Å30.28 × 0.25 × 0.22 mm
Data collection top
Bruker APEXII
diffractometer		3031 independent reflections
Radiation source: fine-focus sealed tube2930 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.040
phi and φ scansθmax = 64.4°, θmin = 3.3°
Absorption correction: multi-scan
(SADABS; Bruker, 2009)		h = −8→8
Tmin = 0.245, Tmax = 0.278k = −11→11
11112 measured reflectionsl = −15→16
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)] = 0.039Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.120H atoms treated by a mixture of independent and constrained refinement
S = 1.09 w = 1/[σ2(Fo2) + (0.0844P)2 + 0.9411P]
where P = (Fo2 + 2Fc2)/3
3031 reflections(Δ/σ)max = 0.001
261 parametersΔρmax = 0.67 e Å−3
2 restraintsΔρmin = −1.08 e Å−3
Special details top

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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
xyzUiso*/Ueq
Br1B−0.40349 (5)1.06722 (4)0.30367 (2)0.01682 (17)
Br1A1.35506 (5)0.17904 (4)0.90000 (2)0.01972 (17)
O3B−0.0105 (3)1.0670 (3)0.23290 (16)0.0159 (5)
O3A0.9612 (3)0.1908 (2)0.96819 (15)0.0164 (5)
O4B0.2558 (3)1.1441 (2)0.20751 (16)0.0204 (5)
O4A0.6543 (3)0.3227 (3)1.02268 (16)0.0223 (5)
O1A0.5360 (3)0.4837 (3)0.70491 (16)0.0210 (5)
O2A0.7281 (3)0.5390 (3)0.56876 (16)0.0184 (5)
O1B0.4376 (3)0.7142 (3)0.47778 (18)0.0219 (5)
O2B0.2466 (4)0.6594 (3)0.61509 (17)0.0220 (5)
C4A0.8598 (4)0.3942 (3)0.7147 (2)0.0113 (6)
C7B0.2753 (5)0.7246 (3)0.5251 (2)0.0141 (6)
C4B0.1108 (5)0.8140 (3)0.4734 (2)0.0138 (7)
C2A0.9761 (5)0.2599 (3)0.8698 (2)0.0135 (6)
C7A0.6971 (5)0.4759 (3)0.6597 (2)0.0125 (6)
C5A1.0392 (5)0.3920 (3)0.6689 (2)0.0150 (7)
H5A1.06010.43580.60060.018*
C3A0.8282 (5)0.3270 (3)0.8147 (2)0.0134 (6)
H3A0.70580.32740.84470.016*
C3B0.1349 (5)0.9014 (3)0.3777 (2)0.0127 (6)
H3B0.25550.90650.34760.015*
C2B−0.0179 (5)0.9803 (3)0.3272 (2)0.0133 (7)
C5B−0.0660 (5)0.8083 (3)0.5191 (2)0.0153 (7)
H5B−0.08220.75110.58460.018*
C6B−0.2167 (5)0.8863 (3)0.4684 (2)0.0153 (7)
H6B−0.33750.88230.49870.018*
C1B−0.1937 (5)0.9706 (3)0.3735 (2)0.0148 (7)
C6A1.1867 (5)0.3251 (3)0.7243 (2)0.0155 (7)
H6A1.30990.32210.69420.019*
C9A0.7006 (6)0.3967 (4)1.0828 (3)0.0285 (8)
H9A10.71880.32961.14810.043*
H9A20.59930.48991.08940.043*
H9A30.81570.42131.05220.043*
C8A0.7818 (5)0.1825 (4)1.0171 (2)0.0174 (7)
H8A10.73320.13240.98160.021*
H8A20.79520.11921.08470.021*
C8B0.1691 (5)1.0616 (4)0.1787 (2)0.0154 (7)
H8B10.24910.95490.18760.018*
H8B20.15611.10160.10770.018*
C1A1.1533 (5)0.2628 (3)0.8237 (2)0.0155 (7)
C9B0.1791 (6)1.3037 (4)0.1746 (3)0.0292 (8)
H9B10.17181.32900.10370.044*
H9B20.25881.35410.18750.044*
H9B30.05391.33780.21000.044*
H2A0.634 (6)0.593 (5)0.541 (3)0.035*
H2B0.330 (6)0.612 (5)0.650 (3)0.035*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Br1B0.0115 (3)0.0212 (2)0.0153 (2)−0.00265 (17)−0.00350 (16)−0.00218 (16)
Br1A0.0121 (3)0.0260 (2)0.0181 (2)−0.00483 (17)−0.00408 (16)−0.00011 (16)
O3B0.0121 (12)0.0222 (11)0.0109 (11)−0.0052 (10)−0.0023 (9)0.0005 (9)
O3A0.0138 (12)0.0219 (12)0.0085 (10)−0.0029 (10)−0.0007 (9)0.0005 (9)
O4B0.0222 (13)0.0189 (11)0.0203 (12)−0.0083 (10)−0.0063 (9)0.0003 (9)
O4A0.0164 (13)0.0267 (12)0.0164 (11)0.0021 (10)−0.0016 (9)−0.0052 (9)
O1A0.0144 (14)0.0289 (12)0.0159 (11)−0.0062 (11)−0.0022 (9)0.0004 (9)
O2A0.0200 (13)0.0212 (11)0.0105 (11)−0.0058 (10)−0.0034 (9)0.0023 (9)
O1B0.0158 (13)0.0243 (12)0.0233 (12)−0.0044 (10)−0.0052 (10)−0.0018 (10)
O2B0.0237 (14)0.0244 (12)0.0149 (12)−0.0091 (11)−0.0088 (10)0.0067 (9)
C4A0.0135 (17)0.0104 (13)0.0110 (14)−0.0045 (12)−0.0002 (12)−0.0042 (11)
C7B0.0193 (18)0.0122 (14)0.0120 (15)−0.0055 (13)−0.0022 (12)−0.0036 (11)
C4B0.0182 (18)0.0120 (14)0.0125 (15)−0.0053 (13)−0.0016 (12)−0.0042 (11)
C2A0.0177 (18)0.0124 (14)0.0092 (15)−0.0037 (13)−0.0008 (12)−0.0022 (12)
C7A0.0156 (17)0.0110 (14)0.0125 (15)−0.0046 (12)−0.0007 (12)−0.0053 (11)
C5A0.0194 (18)0.0115 (14)0.0113 (14)−0.0028 (13)0.0009 (12)−0.0027 (11)
C3A0.0137 (17)0.0145 (14)0.0130 (15)−0.0063 (13)−0.0002 (12)−0.0032 (12)
C3B0.0108 (16)0.0137 (14)0.0137 (15)−0.0039 (12)−0.0006 (12)−0.0038 (12)
C2B0.0173 (18)0.0143 (14)0.0096 (15)−0.0066 (13)−0.0016 (12)−0.0025 (11)
C5B0.0214 (18)0.0152 (14)0.0102 (14)−0.0073 (13)−0.0012 (12)−0.0025 (11)
C6B0.0153 (18)0.0180 (15)0.0151 (15)−0.0067 (13)0.0005 (12)−0.0073 (12)
C1B0.0169 (18)0.0116 (14)0.0166 (16)−0.0022 (13)−0.0034 (13)−0.0061 (12)
C6A0.0147 (18)0.0166 (15)0.0161 (15)−0.0076 (13)0.0015 (13)−0.0044 (12)
C9A0.033 (2)0.0260 (18)0.0227 (18)−0.0002 (16)−0.0086 (15)−0.0083 (14)
C8A0.0133 (18)0.0233 (16)0.0134 (15)−0.0059 (14)−0.0005 (12)−0.0013 (12)
C8B0.0127 (17)0.0217 (16)0.0125 (15)−0.0066 (13)−0.0011 (12)−0.0038 (12)
C1A0.0160 (18)0.0133 (14)0.0158 (16)−0.0020 (13)−0.0020 (13)−0.0041 (12)
C9B0.037 (2)0.0185 (16)0.033 (2)−0.0084 (16)−0.0077 (16)−0.0052 (14)
Geometric parameters (Å, º) top
Br1B—C1B1.897 (3)C2A—C1A1.391 (5)
Br1A—C1A1.901 (3)C5A—C6A1.387 (5)
O3B—C2B1.371 (4)C5A—H5A0.9500
O3B—C8B1.428 (4)C3A—H3A0.9500
O3A—C2A1.374 (4)C3B—C2B1.385 (5)
O3A—C8A1.430 (4)C3B—H3B0.9500
O4B—C8B1.390 (4)C2B—C1B1.400 (5)
O4B—C9B1.426 (4)C5B—C6B1.373 (5)
O4A—C8A1.383 (4)C5B—H5B0.9500
O4A—C9A1.426 (4)C6B—C1B1.380 (5)
O1A—C7A1.260 (4)C6B—H6B0.9500
O2A—C7A1.279 (4)C6A—C1A1.383 (5)
O2A—H2A0.83 (3)C6A—H6A0.9500
O1B—C7B1.275 (4)C9A—H9A10.9800
O2B—C7B1.271 (4)C9A—H9A20.9800
O2B—H2B0.82 (3)C9A—H9A30.9800
C4A—C5A1.395 (5)C8A—H8A10.9900
C4A—C3A1.398 (4)C8A—H8A20.9900
C4A—C7A1.482 (5)C8B—H8B10.9900
C7B—C4B1.476 (5)C8B—H8B20.9900
C4B—C5B1.394 (5)C9B—H9B10.9800
C4B—C3B1.402 (4)C9B—H9B20.9800
C2A—C3A1.386 (5)C9B—H9B30.9800
C2B—O3B—C8B117.7 (2)C5B—C6B—C1B120.4 (3)
C2A—O3A—C8A118.1 (2)C5B—C6B—H6B119.8
C8B—O4B—C9B113.7 (3)C1B—C6B—H6B119.8
C8A—O4A—C9A113.3 (3)C6B—C1B—C2B121.2 (3)
C7A—O2A—H2A116 (3)C6B—C1B—Br1B118.9 (3)
C7B—O2B—H2B124 (4)C2B—C1B—Br1B119.9 (2)
C5A—C4A—C3A120.9 (3)C1A—C6A—C5A119.5 (3)
C5A—C4A—C7A120.5 (3)C1A—C6A—H6A120.2
C3A—C4A—C7A118.5 (3)C5A—C6A—H6A120.2
O2B—C7B—O1B123.3 (3)O4A—C9A—H9A1109.5
O2B—C7B—C4B117.5 (3)O4A—C9A—H9A2109.5
O1B—C7B—C4B119.1 (3)H9A1—C9A—H9A2109.5
C5B—C4B—C3B120.6 (3)O4A—C9A—H9A3109.5
C5B—C4B—C7B119.9 (3)H9A1—C9A—H9A3109.5
C3B—C4B—C7B119.4 (3)H9A2—C9A—H9A3109.5
O3A—C2A—C3A124.7 (3)O4A—C8A—O3A113.1 (3)
O3A—C2A—C1A116.6 (3)O4A—C8A—H8A1109.0
C3A—C2A—C1A118.6 (3)O3A—C8A—H8A1109.0
O1A—C7A—O2A123.3 (3)O4A—C8A—H8A2109.0
O1A—C7A—C4A118.9 (3)O3A—C8A—H8A2109.0
O2A—C7A—C4A117.8 (3)H8A1—C8A—H8A2107.8
C6A—C5A—C4A119.2 (3)O4B—C8B—O3B113.0 (3)
C6A—C5A—H5A120.4O4B—C8B—H8B1109.0
C4A—C5A—H5A120.4O3B—C8B—H8B1109.0
C2A—C3A—C4A119.8 (3)O4B—C8B—H8B2109.0
C2A—C3A—H3A120.1O3B—C8B—H8B2109.0
C4A—C3A—H3A120.1H8B1—C8B—H8B2107.8
C2B—C3B—C4B119.7 (3)C6A—C1A—C2A122.0 (3)
C2B—C3B—H3B120.1C6A—C1A—Br1A119.1 (3)
C4B—C3B—H3B120.1C2A—C1A—Br1A119.0 (2)
O3B—C2B—C3B124.8 (3)O4B—C9B—H9B1109.5
O3B—C2B—C1B116.4 (3)O4B—C9B—H9B2109.5
C3B—C2B—C1B118.8 (3)H9B1—C9B—H9B2109.5
C6B—C5B—C4B119.3 (3)O4B—C9B—H9B3109.5
C6B—C5B—H5B120.4H9B1—C9B—H9B3109.5
C4B—C5B—H5B120.4H9B2—C9B—H9B3109.5
O2B—C7B—C4B—C5B−8.5 (4)C4B—C3B—C2B—C1B0.0 (4)
O1B—C7B—C4B—C5B170.4 (3)C3B—C4B—C5B—C6B1.7 (4)
O2B—C7B—C4B—C3B172.9 (3)C7B—C4B—C5B—C6B−176.9 (3)
O1B—C7B—C4B—C3B−8.3 (4)C4B—C5B—C6B—C1B−0.6 (4)
C8A—O3A—C2A—C3A2.2 (4)C5B—C6B—C1B—C2B−0.8 (4)
C8A—O3A—C2A—C1A−178.5 (3)C5B—C6B—C1B—Br1B176.5 (2)
C5A—C4A—C7A—O1A−175.6 (3)O3B—C2B—C1B—C6B180.0 (3)
C3A—C4A—C7A—O1A0.8 (4)C3B—C2B—C1B—C6B1.1 (4)
C5A—C4A—C7A—O2A2.4 (4)O3B—C2B—C1B—Br1B2.7 (4)
C3A—C4A—C7A—O2A178.9 (3)C3B—C2B—C1B—Br1B−176.2 (2)
C3A—C4A—C5A—C6A−1.5 (4)C4A—C5A—C6A—C1A−0.4 (4)
C7A—C4A—C5A—C6A174.8 (3)C9A—O4A—C8A—O3A−65.8 (3)
O3A—C2A—C3A—C4A−180.0 (3)C2A—O3A—C8A—O4A−65.6 (3)
C1A—C2A—C3A—C4A0.7 (4)C9B—O4B—C8B—O3B−74.1 (3)
C5A—C4A—C3A—C2A1.3 (4)C2B—O3B—C8B—O4B−76.2 (3)
C7A—C4A—C3A—C2A−175.1 (3)C5A—C6A—C1A—C2A2.5 (4)
C5B—C4B—C3B—C2B−1.4 (4)C5A—C6A—C1A—Br1A−177.4 (2)
C7B—C4B—C3B—C2B177.2 (3)O3A—C2A—C1A—C6A178.0 (3)
C8B—O3B—C2B—C3B7.7 (4)C3A—C2A—C1A—C6A−2.6 (4)
C8B—O3B—C2B—C1B−171.1 (3)O3A—C2A—C1A—Br1A−2.2 (4)
C4B—C3B—C2B—O3B−178.8 (3)C3A—C2A—C1A—Br1A177.2 (2)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O2A—H2A···O1B0.84 (5)1.80 (5)2.635 (4)178 (5)
O2B—H2B···O1A0.82 (5)1.81 (5)2.621 (4)167 (5)
C8B—H8B2···O3Ai0.992.523.420 (4)150
Symmetry code: (i) x−1, y+1, z−1.
 

Acknowledgements

The authors are grateful to the Institution of Excellence, Vijnana Bhavana, University of Mysore, Mysore, for providing the single-crystal X-ray diffraction data.

References

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Journal logoCRYSTALLOGRAPHIC
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ISSN: 2056-9890
Volume 72| Part 4| April 2016| Pages 477-481
https://doi.org/10.1107/S2056989016003777
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