organic compounds
Biphenyl-2,2′-diyl diacetate
aDepartment of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China
*Correspondence e-mail: cj1908@126.com
In the title compound, C16H14O4, a derivative of 2,2′-biphenol, the benzene rings are oriented at a dihedral angle of 58.32 (3)°.
Experimental
Crystal data
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Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell CAD-4 Software; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808035113/hk2562sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock x. DOI: 10.1107/S1600536808035113/hk2562Isup2.hkl
For the preparation of the title compound, 2,2'-biphenol (10 g) was dissolved in acetic anhydride (50 ml) at room temperature. After the reaction completed, it was extracted with ethyl acetate, washed with saturated salt water and dryed with sodium sulfate. The product was filtrated, and the organic layer was concentrated. Crystals suitable for X-ray analysis were obtained from ethyl acetate (10 ml) at room temperature.
H atoms were positioned geometrically, with C-H = 0.93 and 0.96 Å for aromatic and methyl H, respectively, and constrained to ride on their parent atoms with Uiso(H) = xUeq(C), where x = 1.5 for methyl H and x = 1.2 for aromatic H atoms.
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell
CAD-4 Software (Enraf–Nonius, 1989); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids drawn at the 30% probability level. |
C16H14O4 | F(000) = 568 |
Mr = 270.27 | Dx = 1.315 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 25 reflections |
a = 8.8380 (18) Å | θ = 9–14° |
b = 18.204 (4) Å | µ = 0.10 mm−1 |
c = 8.9620 (18) Å | T = 294 K |
β = 108.75 (3)° | Block, colorless |
V = 1365.3 (5) Å3 | 0.30 × 0.20 × 0.10 mm |
Z = 4 |
Enraf–Nonius CAD-4 diffractometer | 1645 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.026 |
Graphite monochromator | θmax = 25.3°, θmin = 2.2° |
ω/2θ scans | h = 0→10 |
Absorption correction: ψ scan (North et al., 1968) | k = 0→21 |
Tmin = 0.972, Tmax = 0.991 | l = −10→10 |
2643 measured reflections | 3 standard reflections every 120 min |
2478 independent reflections | intensity decay: 1% |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.054 | H-atom parameters constrained |
wR(F2) = 0.156 | w = 1/[σ2(Fo2) + (0.04P)2 + 2.02P] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max < 0.001 |
2478 reflections | Δρmax = 0.23 e Å−3 |
184 parameters | Δρmin = −0.27 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.040 (3) |
C16H14O4 | V = 1365.3 (5) Å3 |
Mr = 270.27 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.8380 (18) Å | µ = 0.10 mm−1 |
b = 18.204 (4) Å | T = 294 K |
c = 8.9620 (18) Å | 0.30 × 0.20 × 0.10 mm |
β = 108.75 (3)° |
Enraf–Nonius CAD-4 diffractometer | 1645 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.026 |
Tmin = 0.972, Tmax = 0.991 | 3 standard reflections every 120 min |
2643 measured reflections | intensity decay: 1% |
2478 independent reflections |
R[F2 > 2σ(F2)] = 0.054 | 0 restraints |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.23 e Å−3 |
2478 reflections | Δρmin = −0.27 e Å−3 |
184 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'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 > 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. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.0543 (3) | 0.18629 (18) | 0.4765 (3) | 0.0742 (8) | |
O2 | 0.0736 (3) | 0.22040 (12) | 0.7226 (3) | 0.0486 (6) | |
O3 | 0.2528 (3) | 0.08431 (13) | 0.7691 (2) | 0.0468 (6) | |
O4 | 0.1896 (4) | −0.03274 (15) | 0.7923 (3) | 0.0762 (9) | |
C1 | 0.2647 (5) | 0.2666 (2) | 0.6182 (5) | 0.0750 (13) | |
H1A | 0.2874 | 0.2719 | 0.5209 | 0.113* | |
H1B | 0.3539 | 0.2437 | 0.6952 | 0.113* | |
H1C | 0.2463 | 0.3142 | 0.6553 | 0.113* | |
C2 | 0.1200 (5) | 0.2203 (2) | 0.5920 (5) | 0.0544 (9) | |
C3 | −0.0585 (4) | 0.17726 (18) | 0.7219 (4) | 0.0438 (8) | |
C4 | −0.2080 (4) | 0.1915 (2) | 0.6172 (4) | 0.0576 (10) | |
H4A | −0.2217 | 0.2269 | 0.5392 | 0.069* | |
C5 | −0.3376 (4) | 0.1522 (2) | 0.6297 (5) | 0.0649 (11) | |
H5A | −0.4391 | 0.1613 | 0.5596 | 0.078* | |
C6 | −0.3171 (5) | 0.1001 (2) | 0.7448 (5) | 0.0656 (11) | |
H6A | −0.4047 | 0.0738 | 0.7520 | 0.079* | |
C7 | −0.1664 (4) | 0.0864 (2) | 0.8507 (4) | 0.0522 (9) | |
H7A | −0.1541 | 0.0511 | 0.9287 | 0.063* | |
C8 | −0.0327 (4) | 0.12500 (18) | 0.8416 (4) | 0.0406 (8) | |
C9 | 0.1255 (4) | 0.11569 (17) | 0.9635 (4) | 0.0395 (7) | |
C10 | 0.1422 (4) | 0.12691 (18) | 1.1210 (4) | 0.0466 (8) | |
H10A | 0.0525 | 0.1371 | 1.1502 | 0.056* | |
C11 | 0.2908 (4) | 0.1231 (2) | 1.2353 (4) | 0.0546 (9) | |
H11A | 0.3003 | 0.1321 | 1.3401 | 0.065* | |
C12 | 0.4247 (4) | 0.1062 (2) | 1.1957 (4) | 0.0547 (9) | |
H12A | 0.5242 | 0.1039 | 1.2732 | 0.066* | |
C13 | 0.4108 (4) | 0.09252 (19) | 1.0405 (4) | 0.0512 (9) | |
H13A | 0.5005 | 0.0806 | 1.0126 | 0.061* | |
C14 | 0.2620 (4) | 0.09669 (17) | 0.9267 (4) | 0.0418 (8) | |
C15 | 0.2136 (4) | 0.0154 (2) | 0.7134 (4) | 0.0475 (8) | |
C16 | 0.2087 (5) | 0.0091 (2) | 0.5468 (4) | 0.0636 (11) | |
H16A | 0.1746 | −0.0395 | 0.5088 | 0.095* | |
H16B | 0.3134 | 0.0180 | 0.5400 | 0.095* | |
H16C | 0.1351 | 0.0445 | 0.4839 | 0.095* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0705 (19) | 0.099 (2) | 0.0555 (17) | −0.0022 (17) | 0.0229 (14) | −0.0038 (16) |
O2 | 0.0470 (13) | 0.0506 (14) | 0.0484 (13) | −0.0043 (11) | 0.0156 (11) | 0.0034 (11) |
O3 | 0.0520 (14) | 0.0505 (14) | 0.0426 (13) | 0.0022 (11) | 0.0217 (11) | −0.0004 (11) |
O4 | 0.117 (3) | 0.0578 (17) | 0.0618 (17) | −0.0175 (17) | 0.0403 (17) | −0.0039 (14) |
C1 | 0.069 (3) | 0.081 (3) | 0.083 (3) | −0.009 (2) | 0.034 (2) | 0.013 (2) |
C2 | 0.056 (2) | 0.056 (2) | 0.050 (2) | 0.0067 (18) | 0.0175 (18) | 0.0116 (18) |
C3 | 0.0397 (18) | 0.0448 (19) | 0.0473 (19) | 0.0003 (15) | 0.0147 (15) | −0.0042 (15) |
C4 | 0.054 (2) | 0.063 (2) | 0.051 (2) | 0.0104 (19) | 0.0100 (18) | −0.0078 (18) |
C5 | 0.040 (2) | 0.085 (3) | 0.064 (3) | 0.009 (2) | 0.0099 (18) | −0.016 (2) |
C6 | 0.047 (2) | 0.085 (3) | 0.071 (3) | −0.012 (2) | 0.026 (2) | −0.025 (2) |
C7 | 0.048 (2) | 0.060 (2) | 0.054 (2) | −0.0084 (17) | 0.0233 (17) | −0.0084 (17) |
C8 | 0.0348 (17) | 0.0478 (19) | 0.0421 (18) | 0.0007 (14) | 0.0163 (14) | −0.0056 (15) |
C9 | 0.0432 (18) | 0.0389 (18) | 0.0394 (17) | −0.0009 (14) | 0.0172 (14) | 0.0023 (14) |
C10 | 0.0465 (19) | 0.053 (2) | 0.0437 (19) | 0.0001 (16) | 0.0189 (16) | −0.0018 (15) |
C11 | 0.064 (2) | 0.060 (2) | 0.0405 (19) | 0.0014 (19) | 0.0183 (18) | −0.0020 (17) |
C12 | 0.046 (2) | 0.063 (2) | 0.050 (2) | 0.0075 (17) | 0.0078 (17) | 0.0027 (17) |
C13 | 0.0414 (19) | 0.059 (2) | 0.055 (2) | 0.0038 (16) | 0.0175 (16) | 0.0047 (17) |
C14 | 0.0463 (19) | 0.0433 (18) | 0.0383 (17) | 0.0032 (15) | 0.0168 (15) | 0.0020 (14) |
C15 | 0.0423 (19) | 0.054 (2) | 0.048 (2) | 0.0024 (16) | 0.0171 (16) | −0.0055 (17) |
C16 | 0.072 (3) | 0.077 (3) | 0.047 (2) | 0.010 (2) | 0.0257 (19) | −0.0065 (19) |
O1—C2 | 1.185 (4) | C7—C8 | 1.400 (4) |
O2—C2 | 1.359 (4) | C7—H7A | 0.9300 |
O2—C3 | 1.406 (4) | C8—C9 | 1.482 (4) |
O3—C15 | 1.353 (4) | C9—C10 | 1.386 (4) |
O3—C14 | 1.406 (4) | C9—C14 | 1.393 (4) |
O4—C15 | 1.187 (4) | C10—C11 | 1.383 (5) |
C1—C2 | 1.487 (5) | C10—H10A | 0.9300 |
C1—H1A | 0.9600 | C11—C12 | 1.376 (5) |
C1—H1B | 0.9600 | C11—H11A | 0.9300 |
C1—H1C | 0.9600 | C12—C13 | 1.379 (5) |
C3—C4 | 1.377 (5) | C12—H12A | 0.9300 |
C3—C8 | 1.396 (4) | C13—C14 | 1.384 (5) |
C4—C5 | 1.385 (6) | C13—H13A | 0.9300 |
C4—H4A | 0.9300 | C15—C16 | 1.484 (5) |
C5—C6 | 1.370 (6) | C16—H16A | 0.9600 |
C5—H5A | 0.9300 | C16—H16B | 0.9600 |
C6—C7 | 1.387 (5) | C16—H16C | 0.9600 |
C6—H6A | 0.9300 | ||
C2—O2—C3 | 118.4 (3) | C7—C8—C9 | 120.9 (3) |
C15—O3—C14 | 116.4 (3) | C10—C9—C14 | 117.4 (3) |
C2—C1—H1A | 109.5 | C10—C9—C8 | 120.0 (3) |
C2—C1—H1B | 109.5 | C14—C9—C8 | 122.5 (3) |
H1A—C1—H1B | 109.5 | C11—C10—C9 | 120.8 (3) |
C2—C1—H1C | 109.5 | C11—C10—H10A | 119.6 |
H1A—C1—H1C | 109.5 | C9—C10—H10A | 119.6 |
H1B—C1—H1C | 109.5 | C12—C11—C10 | 120.7 (3) |
O1—C2—O2 | 123.7 (4) | C12—C11—H11A | 119.7 |
O1—C2—C1 | 126.1 (4) | C10—C11—H11A | 119.7 |
O2—C2—C1 | 110.2 (3) | C11—C12—C13 | 119.7 (3) |
C4—C3—C8 | 122.4 (3) | C11—C12—H12A | 120.1 |
C4—C3—O2 | 120.8 (3) | C13—C12—H12A | 120.1 |
C8—C3—O2 | 116.6 (3) | C12—C13—C14 | 119.3 (3) |
C3—C4—C5 | 119.0 (4) | C12—C13—H13A | 120.4 |
C3—C4—H4A | 120.5 | C14—C13—H13A | 120.4 |
C5—C4—H4A | 120.5 | C13—C14—C9 | 122.0 (3) |
C6—C5—C4 | 120.4 (4) | C13—C14—O3 | 117.8 (3) |
C6—C5—H5A | 119.8 | C9—C14—O3 | 120.2 (3) |
C4—C5—H5A | 119.8 | O4—C15—O3 | 122.6 (3) |
C5—C6—C7 | 120.3 (4) | O4—C15—C16 | 126.0 (4) |
C5—C6—H6A | 119.8 | O3—C15—C16 | 111.4 (3) |
C7—C6—H6A | 119.8 | C15—C16—H16A | 109.5 |
C6—C7—C8 | 120.8 (4) | C15—C16—H16B | 109.5 |
C6—C7—H7A | 119.6 | H16A—C16—H16B | 109.5 |
C8—C7—H7A | 119.6 | C15—C16—H16C | 109.5 |
C3—C8—C7 | 117.0 (3) | H16A—C16—H16C | 109.5 |
C3—C8—C9 | 121.8 (3) | H16B—C16—H16C | 109.5 |
C3—O2—C2—O1 | 0.7 (5) | C3—C8—C9—C14 | −60.2 (4) |
C3—O2—C2—C1 | −177.8 (3) | C7—C8—C9—C14 | 126.0 (3) |
C2—O2—C3—C4 | −63.2 (4) | C14—C9—C10—C11 | 3.4 (5) |
C2—O2—C3—C8 | 122.9 (3) | C8—C9—C10—C11 | −175.8 (3) |
C8—C3—C4—C5 | −0.5 (5) | C9—C10—C11—C12 | −1.8 (5) |
O2—C3—C4—C5 | −174.1 (3) | C10—C11—C12—C13 | −0.2 (6) |
C3—C4—C5—C6 | 0.1 (6) | C11—C12—C13—C14 | 0.5 (5) |
C4—C5—C6—C7 | 0.4 (6) | C12—C13—C14—C9 | 1.2 (5) |
C5—C6—C7—C8 | −0.4 (6) | C12—C13—C14—O3 | 178.4 (3) |
C4—C3—C8—C7 | 0.6 (5) | C10—C9—C14—C13 | −3.1 (5) |
O2—C3—C8—C7 | 174.3 (3) | C8—C9—C14—C13 | 176.0 (3) |
C4—C3—C8—C9 | −173.5 (3) | C10—C9—C14—O3 | 179.8 (3) |
O2—C3—C8—C9 | 0.3 (4) | C8—C9—C14—O3 | −1.1 (5) |
C6—C7—C8—C3 | −0.1 (5) | C15—O3—C14—C13 | 96.1 (4) |
C6—C7—C8—C9 | 174.0 (3) | C15—O3—C14—C9 | −86.7 (4) |
C3—C8—C9—C10 | 118.9 (3) | C14—O3—C15—O4 | −0.8 (5) |
C7—C8—C9—C10 | −54.9 (4) | C14—O3—C15—C16 | −179.6 (3) |
Experimental details
Crystal data | |
Chemical formula | C16H14O4 |
Mr | 270.27 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 294 |
a, b, c (Å) | 8.8380 (18), 18.204 (4), 8.9620 (18) |
β (°) | 108.75 (3) |
V (Å3) | 1365.3 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.30 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.972, 0.991 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2643, 2478, 1645 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.601 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.054, 0.156, 1.00 |
No. of reflections | 2478 |
No. of parameters | 184 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.23, −0.27 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1989), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
The authors thank the Center of Testing and Analysis, Nanjing University, for support.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Enraf–Nonius (1989). CAD-4 Software. Enraf–Nonius, Delft. The Netherlands. Google Scholar
Harms, K. & Wocadlo, S. (1995). XCAD4. University of Marburg, Germany. Google Scholar
North, A. C. T., Phillips, D. C. & Mathews, F. S. (1968). Acta Cryst. A24, 351–359. CrossRef IUCr Journals Web of Science Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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Some derivatives of andrographolide are important chemical materials. We report herein the crystal structure of the title compound.
In the title compound (Fig. 1), the bond lengths (Allen et al., 1987) and angles are within normal ranges. Rings A (C3-C8) and B (C9-C14) are, of course, planar and the dihedral angle between them is A/B = 58.32 (3)°.