organic compounds
of 3,4-dimethoxyphenol
aDepartment of Science & Math, Massasoit Community College, 1 Massasoit Boulevard, Brockton, MA 02302, USA, and bDepartment of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Road, North Dartmouth, MA 02747, USA
*Correspondence e-mail: dmanke@umassd.edu
The title compound, C8H10O3, has two planar molecules in the possessing mean deviations from planarity of 0.051 and 0.071 Å. In the crystal, there are two distinct infinite chains, both along [010]. The chains are formed by O—H⋯O interactions between the phenol and both the 3-methoxy and the 4-methoxy groups.
Keywords: crystal structure; hydrogen bonding; phenols.
CCDC reference: 1439495
1. Related literature
For the et al. (2014). For the of 3,4,5-trimethoxyphenol, see: Jia et al. (2012). For background and crystal structures solved during the study, see: McDonald et al. (2015); Nguyen et al. (2015).
of the related 4-[(2,3-dimethylbut-3-en-2-yl)oxy]-3-methoxyphenol, see: Yamamoto2. Experimental
2.1. Crystal data
|
2.3. Refinement
|
Data collection: APEX2 (Bruker, 2014); cell SAINT (Bruker, 2014); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015) and olex2.refine (Bourhis et al., 2015); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 and publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1439495
https://doi.org/10.1107/S2056989015022860/ff2145sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015022860/ff2145Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989015022860/ff2145Isup3.cml
In a continuing collaborative study of the solid state structure of aromatic
between UMass Dartmouth and Massasoit Community College (McDonald et al., 2015; Nguyen et al., 2015), we report herein the structure of 3,4-dimethoxyphenol. A similar 3,4-dialkoxyphenol complex has been structurally characterized (Yamamoto et al., 2014) and demonstrates tip-to-tail hydrogen bonding with the 4-alkoxy group. The structure of the trisubstituted 3,4,5-trimethoxyphenol demonstrates a similar interaction, with just the 4-methoxy group involved in hydrogen bonding (Jia et al., 2012). In contrast, the title compound exhibits hydrogen bonding chains with interactions involving the methoxy groups at both the 3 and 4 positions.The molecular structure of the title compound is shown in Figure 1 .There are two molecules in the
with non-hydrogen atoms possessing mean deviations from the plane of 0.051 Å and 0.071 Å. There are two distinct hydrogen bonding chains which both propagate along [010]. One is formed by O1–H1···O2 and O1–H1···O3 interactions, and the other by O4–H4···O5 and O4–H4···O6 interactions. The packing of the title compound indicating hydrogen bonding is shown in Figure 2.A commercial sample (Aldrich) was used for crystallization. Single crystals suitable for X-ray diffraction studies were grown by slow evaporation of a methylene chloride solution.
All non-hydrogen atoms were refined anisotropically (Olex2) by full matrix least squares on F2. Hydrogen atoms H1 and H4 were found from a Fourier difference map, and refined with a fixed distance of 0.86 (0.005) Å and isotropic displacement parameters of 1.50 times Ueq of the parent O atoms. The remaining hydrogen atoms were placed in calculated positions and then refined with a riding model with C–H lengths of 0.95 Å (sp2) and 0.98 Å (sp3) with isotropic displacement parameters set to 1.20 (sp2) and 1.50 (sp3) times Ueq of the parent C atom.
In a continuing collaborative study of the solid state structure of aromatic
between UMass Dartmouth and Massasoit Community College (McDonald et al., 2015; Nguyen et al., 2015), we report herein the structure of 3,4-dimethoxyphenol. A similar 3,4-dialkoxyphenol complex has been structurally characterized (Yamamoto et al., 2014) and demonstrates tip-to-tail hydrogen bonding with the 4-alkoxy group. The structure of the trisubstituted 3,4,5-trimethoxyphenol demonstrates a similar interaction, with just the 4-methoxy group involved in hydrogen bonding (Jia et al., 2012). In contrast, the title compound exhibits hydrogen bonding chains with interactions involving the methoxy groups at both the 3 and 4 positions.The molecular structure of the title compound is shown in Figure 1 .There are two molecules in the
with non-hydrogen atoms possessing mean deviations from the plane of 0.051 Å and 0.071 Å. There are two distinct hydrogen bonding chains which both propagate along [010]. One is formed by O1–H1···O2 and O1–H1···O3 interactions, and the other by O4–H4···O5 and O4–H4···O6 interactions. The packing of the title compound indicating hydrogen bonding is shown in Figure 2.A commercial sample (Aldrich) was used for crystallization. Single crystals suitable for X-ray diffraction studies were grown by slow evaporation of a methylene chloride solution.
For the
of the related 4-[(2,3-dimethylbut-3-en-2-yl)oxy]-3-methoxyphenol, see: Yamamoto et al. (2014). For the of 3,4,5-trimethoxyphenol, see: Jia et al. (2012). For background and crystal structures solved during the study, see: McDonald et al. (2015); Nguyen et al. (2015). detailsAll non-hydrogen atoms were refined anisotropically (Olex2) by full matrix least squares on F2. Hydrogen atoms H1 and H4 were found from a Fourier difference map, and refined with a fixed distance of 0.86 (0.005) Å and isotropic displacement parameters of 1.50 times Ueq of the parent O atoms. The remaining hydrogen atoms were placed in calculated positions and then refined with a riding model with C–H lengths of 0.95 Å (sp2) and 0.98 Å (sp3) with isotropic displacement parameters set to 1.20 (sp2) and 1.50 (sp3) times Ueq of the parent C atom.
Data collection: APEX2 (Bruker, 2014); cell
SAINT (Bruker, 2014); data reduction: SAINT (Bruker, 2014); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015) and olex2.refine (Bourhis et al., 2015); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009) and publCIF (Westrip, 2010).Fig. 1. Molecular structure of the title compound, showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 50% probability level. H atoms are drawn as spheres of arbitrary radius. | |
Fig. 2. Molecular packing of the title compound with hydrogen bonding shown as dashed lines. |
C8H10O3 | F(000) = 1312 |
Mr = 154.16 | Dx = 1.271 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 9890 reflections |
a = 8.7477 (4) Å | θ = 3.0–28.3° |
b = 13.8218 (7) Å | µ = 0.10 mm−1 |
c = 26.6422 (13) Å | T = 120 K |
V = 3221.3 (3) Å3 | Block, brown |
Z = 16 | 0.5 × 0.4 × 0.4 mm |
Bruker Venture D8 CMOS diffractometer | 3996 independent reflections |
Radiation source: Mo | 3360 reflections with I > 2σ(I) |
TRIUMPH monochromator | Rint = 0.032 |
φ and ω scans | θmax = 28.4°, θmin = 2.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2014) | h = −11→10 |
Tmin = 0.700, Tmax = 0.746 | k = −18→18 |
29914 measured reflections | l = −35→34 |
Refinement on F2 | 2 restraints |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.042 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.116 | w = 1/[σ2(Fo2) + (0.0552P)2 + 1.1413P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.001 |
3996 reflections | Δρmax = 0.25 e Å−3 |
205 parameters | Δρmin = −0.25 e Å−3 |
C8H10O3 | V = 3221.3 (3) Å3 |
Mr = 154.16 | Z = 16 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 8.7477 (4) Å | µ = 0.10 mm−1 |
b = 13.8218 (7) Å | T = 120 K |
c = 26.6422 (13) Å | 0.5 × 0.4 × 0.4 mm |
Bruker Venture D8 CMOS diffractometer | 3996 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2014) | 3360 reflections with I > 2σ(I) |
Tmin = 0.700, Tmax = 0.746 | Rint = 0.032 |
29914 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 2 restraints |
wR(F2) = 0.116 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.25 e Å−3 |
3996 reflections | Δρmin = −0.25 e Å−3 |
205 parameters |
Experimental. Absorption correction: SADABS-2014/4 (Bruker,2014/4) was used for absorption correction. wR2(int) was 0.0791 before and 0.0531 after correction. The Ratio of minimum to maximum transmission is 0.9391. The λ/2 correction factor is 0.00150. |
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. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.31642 (12) | 0.55792 (6) | 0.46341 (4) | 0.0364 (2) | |
H1 | 0.2656 (18) | 0.6010 (10) | 0.4472 (6) | 0.055* | |
O2 | 0.41171 (10) | 0.21648 (5) | 0.45901 (3) | 0.0274 (2) | |
O3 | 0.23732 (11) | 0.19341 (6) | 0.38304 (3) | 0.0322 (2) | |
C1 | 0.29128 (13) | 0.46989 (8) | 0.44100 (4) | 0.0244 (2) | |
C2 | 0.36772 (12) | 0.39078 (7) | 0.46188 (4) | 0.0215 (2) | |
H2 | 0.4337 | 0.3994 | 0.4899 | 0.026* | |
C3 | 0.34642 (12) | 0.29982 (7) | 0.44142 (4) | 0.0198 (2) | |
C4 | 0.25063 (13) | 0.28729 (8) | 0.39961 (4) | 0.0224 (2) | |
C5 | 0.17669 (14) | 0.36617 (8) | 0.37932 (4) | 0.0267 (2) | |
H5 | 0.1123 | 0.3579 | 0.3509 | 0.032* | |
C6 | 0.19567 (14) | 0.45826 (8) | 0.40017 (5) | 0.0280 (3) | |
H6 | 0.1433 | 0.5123 | 0.3864 | 0.034* | |
C7 | 0.49570 (17) | 0.22270 (9) | 0.50473 (5) | 0.0374 (3) | |
H7A | 0.5365 | 0.1588 | 0.5133 | 0.056* | |
H7B | 0.5803 | 0.2685 | 0.5006 | 0.056* | |
H7C | 0.4280 | 0.2451 | 0.5317 | 0.056* | |
C8 | 0.1208 (2) | 0.17531 (11) | 0.34658 (6) | 0.0538 (5) | |
H8A | 0.1214 | 0.1066 | 0.3375 | 0.081* | |
H8B | 0.0209 | 0.1924 | 0.3607 | 0.081* | |
H8C | 0.1402 | 0.2145 | 0.3166 | 0.081* | |
O4 | 0.27270 (14) | 0.84893 (7) | 0.72098 (4) | 0.0463 (3) | |
H4 | 0.319 (2) | 0.8911 (12) | 0.7029 (7) | 0.069* | |
O5 | 0.06921 (10) | 0.52789 (6) | 0.71498 (3) | 0.0313 (2) | |
O6 | 0.20065 (12) | 0.49211 (7) | 0.63132 (3) | 0.0370 (2) | |
C9 | 0.26184 (15) | 0.76288 (9) | 0.69618 (5) | 0.0313 (3) | |
C10 | 0.17021 (14) | 0.69220 (9) | 0.71881 (5) | 0.0288 (3) | |
H10 | 0.1198 | 0.7055 | 0.7496 | 0.035* | |
C11 | 0.15354 (13) | 0.60291 (8) | 0.69608 (4) | 0.0250 (2) | |
C12 | 0.22572 (14) | 0.58329 (9) | 0.65010 (4) | 0.0278 (3) | |
C13 | 0.31638 (15) | 0.65389 (10) | 0.62848 (5) | 0.0337 (3) | |
H13 | 0.3660 | 0.6411 | 0.5975 | 0.040* | |
C14 | 0.33589 (15) | 0.74365 (10) | 0.65161 (5) | 0.0346 (3) | |
H14 | 0.3998 | 0.7912 | 0.6367 | 0.042* | |
C15 | 0.01260 (18) | 0.53863 (10) | 0.76497 (5) | 0.0403 (3) | |
H15A | −0.0456 | 0.4808 | 0.7744 | 0.060* | |
H15B | 0.0986 | 0.5469 | 0.7881 | 0.060* | |
H15C | −0.0540 | 0.5955 | 0.7667 | 0.060* | |
C16 | 0.2624 (2) | 0.47148 (13) | 0.58306 (6) | 0.0560 (5) | |
H16A | 0.2374 | 0.4048 | 0.5737 | 0.084* | |
H16B | 0.2187 | 0.5161 | 0.5583 | 0.084* | |
H16C | 0.3737 | 0.4794 | 0.5839 | 0.084* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0473 (6) | 0.0169 (4) | 0.0450 (5) | 0.0030 (4) | −0.0158 (4) | −0.0031 (4) |
O2 | 0.0317 (4) | 0.0177 (4) | 0.0326 (4) | 0.0028 (3) | −0.0104 (3) | 0.0003 (3) |
O3 | 0.0436 (5) | 0.0208 (4) | 0.0322 (4) | −0.0027 (4) | −0.0134 (4) | −0.0036 (3) |
C1 | 0.0267 (5) | 0.0170 (5) | 0.0295 (6) | −0.0015 (4) | −0.0012 (4) | 0.0002 (4) |
C2 | 0.0210 (5) | 0.0201 (5) | 0.0234 (5) | −0.0016 (4) | −0.0024 (4) | 0.0003 (4) |
C3 | 0.0189 (5) | 0.0179 (5) | 0.0227 (5) | 0.0003 (4) | 0.0007 (4) | 0.0030 (4) |
C4 | 0.0248 (5) | 0.0195 (5) | 0.0229 (5) | −0.0038 (4) | −0.0008 (4) | 0.0002 (4) |
C5 | 0.0282 (6) | 0.0260 (5) | 0.0260 (5) | −0.0040 (5) | −0.0078 (4) | 0.0042 (4) |
C6 | 0.0292 (6) | 0.0212 (5) | 0.0337 (6) | 0.0008 (4) | −0.0067 (5) | 0.0070 (4) |
C7 | 0.0450 (7) | 0.0256 (6) | 0.0416 (7) | 0.0050 (5) | −0.0209 (6) | 0.0027 (5) |
C8 | 0.0796 (12) | 0.0334 (7) | 0.0484 (9) | −0.0055 (8) | −0.0363 (8) | −0.0082 (6) |
O4 | 0.0618 (7) | 0.0258 (5) | 0.0513 (6) | −0.0033 (5) | 0.0108 (5) | 0.0018 (4) |
O5 | 0.0317 (4) | 0.0287 (4) | 0.0335 (5) | −0.0021 (3) | 0.0081 (4) | 0.0079 (3) |
O6 | 0.0491 (6) | 0.0340 (5) | 0.0279 (4) | −0.0052 (4) | 0.0066 (4) | −0.0012 (4) |
C9 | 0.0318 (6) | 0.0236 (5) | 0.0385 (6) | 0.0032 (5) | 0.0006 (5) | 0.0063 (5) |
C10 | 0.0289 (6) | 0.0269 (6) | 0.0306 (6) | 0.0062 (5) | 0.0052 (5) | 0.0065 (4) |
C11 | 0.0207 (5) | 0.0261 (5) | 0.0283 (6) | 0.0021 (4) | 0.0008 (4) | 0.0097 (4) |
C12 | 0.0277 (6) | 0.0288 (6) | 0.0269 (6) | 0.0013 (5) | 0.0000 (4) | 0.0056 (5) |
C13 | 0.0346 (7) | 0.0366 (6) | 0.0300 (6) | 0.0012 (5) | 0.0094 (5) | 0.0081 (5) |
C14 | 0.0313 (6) | 0.0311 (6) | 0.0413 (7) | −0.0012 (5) | 0.0077 (5) | 0.0124 (5) |
C15 | 0.0448 (8) | 0.0339 (6) | 0.0421 (7) | 0.0050 (6) | 0.0214 (6) | 0.0106 (6) |
C16 | 0.0853 (13) | 0.0480 (9) | 0.0348 (7) | −0.0094 (9) | 0.0195 (8) | −0.0073 (7) |
O1—H1 | 0.859 (5) | O4—H4 | 0.860 (5) |
O1—C1 | 1.3731 (13) | O4—C9 | 1.3638 (16) |
O2—C3 | 1.3684 (12) | O5—C11 | 1.3686 (14) |
O2—C7 | 1.4251 (14) | O5—C15 | 1.4285 (15) |
O3—C4 | 1.3754 (13) | O6—C12 | 1.3735 (15) |
O3—C8 | 1.4302 (16) | O6—C16 | 1.4236 (17) |
C1—C2 | 1.3971 (15) | C9—C10 | 1.4002 (17) |
C1—C6 | 1.3816 (16) | C9—C14 | 1.3786 (18) |
C2—H2 | 0.9500 | C10—H10 | 0.9500 |
C2—C3 | 1.3829 (14) | C10—C11 | 1.3824 (17) |
C3—C4 | 1.4048 (15) | C11—C12 | 1.4045 (16) |
C4—C5 | 1.3781 (16) | C12—C13 | 1.3831 (17) |
C5—H5 | 0.9500 | C13—H13 | 0.9500 |
C5—C6 | 1.3986 (16) | C13—C14 | 1.3957 (19) |
C6—H6 | 0.9500 | C14—H14 | 0.9500 |
C7—H7A | 0.9800 | C15—H15A | 0.9800 |
C7—H7B | 0.9800 | C15—H15B | 0.9800 |
C7—H7C | 0.9800 | C15—H15C | 0.9800 |
C8—H8A | 0.9800 | C16—H16A | 0.9800 |
C8—H8B | 0.9800 | C16—H16B | 0.9800 |
C8—H8C | 0.9800 | C16—H16C | 0.9800 |
C1—O1—H1 | 108.2 (13) | C9—O4—H4 | 110.7 (14) |
C3—O2—C7 | 117.19 (9) | C11—O5—C15 | 116.82 (10) |
C4—O3—C8 | 116.31 (10) | C12—O6—C16 | 116.88 (11) |
O1—C1—C2 | 116.34 (10) | O4—C9—C10 | 116.09 (11) |
O1—C1—C6 | 122.85 (10) | O4—C9—C14 | 123.55 (12) |
C6—C1—C2 | 120.81 (10) | C14—C9—C10 | 120.35 (12) |
C1—C2—H2 | 120.3 | C9—C10—H10 | 120.2 |
C3—C2—C1 | 119.35 (10) | C11—C10—C9 | 119.65 (11) |
C3—C2—H2 | 120.3 | C11—C10—H10 | 120.2 |
O2—C3—C2 | 125.04 (9) | O5—C11—C10 | 124.89 (11) |
O2—C3—C4 | 114.63 (9) | O5—C11—C12 | 114.65 (10) |
C2—C3—C4 | 120.33 (9) | C10—C11—C12 | 120.47 (11) |
O3—C4—C3 | 114.92 (9) | O6—C12—C11 | 115.02 (10) |
O3—C4—C5 | 125.51 (10) | O6—C12—C13 | 125.96 (11) |
C5—C4—C3 | 119.56 (10) | C13—C12—C11 | 119.00 (11) |
C4—C5—H5 | 119.7 | C12—C13—H13 | 119.6 |
C4—C5—C6 | 120.57 (10) | C12—C13—C14 | 120.89 (12) |
C6—C5—H5 | 119.7 | C14—C13—H13 | 119.6 |
C1—C6—C5 | 119.37 (10) | C9—C14—C13 | 119.62 (11) |
C1—C6—H6 | 120.3 | C9—C14—H14 | 120.2 |
C5—C6—H6 | 120.3 | C13—C14—H14 | 120.2 |
O2—C7—H7A | 109.5 | O5—C15—H15A | 109.5 |
O2—C7—H7B | 109.5 | O5—C15—H15B | 109.5 |
O2—C7—H7C | 109.5 | O5—C15—H15C | 109.5 |
H7A—C7—H7B | 109.5 | H15A—C15—H15B | 109.5 |
H7A—C7—H7C | 109.5 | H15A—C15—H15C | 109.5 |
H7B—C7—H7C | 109.5 | H15B—C15—H15C | 109.5 |
O3—C8—H8A | 109.5 | O6—C16—H16A | 109.5 |
O3—C8—H8B | 109.5 | O6—C16—H16B | 109.5 |
O3—C8—H8C | 109.5 | O6—C16—H16C | 109.5 |
H8A—C8—H8B | 109.5 | H16A—C16—H16B | 109.5 |
H8A—C8—H8C | 109.5 | H16A—C16—H16C | 109.5 |
H8B—C8—H8C | 109.5 | H16B—C16—H16C | 109.5 |
O1—C1—C2—C3 | 179.40 (10) | O4—C9—C10—C11 | −179.88 (11) |
O1—C1—C6—C5 | 179.69 (11) | O4—C9—C14—C13 | −179.08 (12) |
O2—C3—C4—O3 | 0.15 (14) | O5—C11—C12—O6 | −0.06 (15) |
O2—C3—C4—C5 | 178.86 (10) | O5—C11—C12—C13 | −178.59 (11) |
O3—C4—C5—C6 | 178.24 (11) | O6—C12—C13—C14 | −178.68 (12) |
C1—C2—C3—O2 | −178.48 (10) | C9—C10—C11—O5 | 178.92 (11) |
C1—C2—C3—C4 | 0.94 (16) | C9—C10—C11—C12 | −1.08 (17) |
C2—C1—C6—C5 | −0.61 (18) | C10—C9—C14—C13 | 1.42 (19) |
C2—C3—C4—O3 | −179.33 (10) | C10—C11—C12—O6 | 179.94 (11) |
C2—C3—C4—C5 | −0.62 (16) | C10—C11—C12—C13 | 1.41 (17) |
C3—C4—C5—C6 | −0.32 (18) | C11—C12—C13—C14 | −0.32 (19) |
C4—C5—C6—C1 | 0.93 (18) | C12—C13—C14—C9 | −1.1 (2) |
C6—C1—C2—C3 | −0.32 (17) | C14—C9—C10—C11 | −0.34 (19) |
C7—O2—C3—C2 | 6.52 (16) | C15—O5—C11—C10 | −9.16 (17) |
C7—O2—C3—C4 | −172.93 (11) | C15—O5—C11—C12 | 170.84 (11) |
C8—O3—C4—C3 | 169.24 (12) | C16—O6—C12—C11 | 175.56 (13) |
C8—O3—C4—C5 | −9.38 (18) | C16—O6—C12—C13 | −6.0 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.86 (1) | 2.25 (1) | 2.9663 (12) | 141 (2) |
O1—H1···O3i | 0.86 (1) | 2.13 (1) | 2.8834 (13) | 145 (2) |
O4—H4···O5i | 0.86 (1) | 2.15 (2) | 2.8384 (13) | 137 (2) |
O4—H4···O6i | 0.86 (1) | 2.37 (1) | 3.1107 (14) | 145 (2) |
Symmetry code: (i) −x+1/2, y+1/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.859 (5) | 2.248 (12) | 2.9663 (12) | 141.1 (16) |
O1—H1···O3i | 0.859 (5) | 2.134 (11) | 2.8834 (13) | 145.4 (16) |
O4—H4···O5i | 0.860 (5) | 2.151 (15) | 2.8384 (13) | 136.6 (18) |
O4—H4···O6i | 0.860 (5) | 2.369 (13) | 3.1107 (14) | 144.7 (18) |
Symmetry code: (i) −x+1/2, y+1/2, z. |
Acknowledgements
We greatly acknowledge support from the National Science Foundation (CHE-1429086).
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