Download citation
Download citation
link to html
The dihedral angles between the phenyl ring and the naphthalene part of the chromanone unit in the two independent mol­ecules of the title compound, C20H14O2, are 56.17 (4) and 55.62 (7)°. The mol­ecular structure is stabilized by weak intra­molecular C—H...O inter­actions and the crystal packing is stabilized by weak C—H...π inter­actions.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807050258/is2219sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536807050258/is2219Isup2.hkl
Contains datablock I

CCDC reference: 667405

Key indicators

  • Single-crystal X-ray study
  • T = 150 K
  • Mean [sigma](C-C) = 0.004 Å
  • R factor = 0.032
  • wR factor = 0.061
  • Data-to-parameter ratio = 7.2

checkCIF/PLATON results

No syntax errors found



Alert level C RINTA01_ALERT_3_C The value of Rint is greater than 0.10 Rint given 0.105 PLAT020_ALERT_3_C The value of Rint is greater than 0.10 ......... 0.10 PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT089_ALERT_3_C Poor Data / Parameter Ratio (Zmax .LT. 18) ..... 7.24
Alert level G REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is correct. If it is not, please give the correct count in the _publ_section_exptl_refinement section of the submitted CIF. From the CIF: _diffrn_reflns_theta_max 26.00 From the CIF: _reflns_number_total 2881 Count of symmetry unique reflns 2881 Completeness (_total/calc) 100.00% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 0 Fraction of Friedel pairs measured 0.000 Are heavy atom types Z>Si present no PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 1
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 4 ALERT level C = Check and explain 2 ALERT level G = General alerts; check 1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 4 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check

Comment top

The chromanone moiety present in the title compound consisting of the pyrone and benzene rings, which plays an important role in many areas of medicines such as inhibition of HIV replication (Tillekeratne et al., 2001). The naturally occurring classes of compounds to which they belong, the benzylidene chroman-4-ones, have identified as a potential source of new anti-fungal agents (Kang et al., 2004).

The geometric parameters in the title compound agree with the reported values of similar structure (Puviarasan et al., 1998; Wu et al., 2005a,b; Schollmeyer et al., 2005; Nissa et al., 2001). The dihedral angles between the phenyl ring and the benzene ring of chromanone unit in the two crystallographically independent molecules are 56.17 (4) and 55.62 (7)°.

The molecular structure is stabilized by weak intramolecular C—H···O interactions and the crystal packing is stabilized by weak C—H···π interactions.

Related literature top

For related literature see: Puviarasan et al. (1998); Tillekeratne et al. (2001); Nissa et al. (2001); Kang et al. (2004); Wu et al. (2005a,b); Schollmeyer et al. (2005). Cg1 and Cg2 are the centroids of the C1–C6 and C11–C16 rings,

respectively.

Experimental top

Bromomethyl-3-phenyl-propenoate (10 mmol) was treated with beta-napthanol (10 mmol) in the presence of potassium carbonate in acetone at reflux temperature for 3 h. The napthoxy ester of methyl- 3-phenyl-2-(2-methoxy-4-prop-2-enyl) phenoxy methyl-prop-2-enoate was obtained after silica gel column chromatography (3% EtOAc-hexane). Hydrolysis of this ester was carried out with KOH in aqueous 1,4-dioxane at room temperature. The reaction mixture was acidified and the precipitated acid was purified by recrystalization. Finally the acid was treated with TFAA and the reaction mixture refluxed in dichloromethane for 1 h. It was further purified by column chromatography (silica gel - 3% EtOAc-hexane).

Refinement top

H atoms were positioned geometrically (C—H = 0.95 or 0.99 Å) and refined using riding model, with Uiso(H) = 1.2Ueq(C). In the absence of significant anomalous scattering effects, Friedel pairs have been merged.

Structure description top

The chromanone moiety present in the title compound consisting of the pyrone and benzene rings, which plays an important role in many areas of medicines such as inhibition of HIV replication (Tillekeratne et al., 2001). The naturally occurring classes of compounds to which they belong, the benzylidene chroman-4-ones, have identified as a potential source of new anti-fungal agents (Kang et al., 2004).

The geometric parameters in the title compound agree with the reported values of similar structure (Puviarasan et al., 1998; Wu et al., 2005a,b; Schollmeyer et al., 2005; Nissa et al., 2001). The dihedral angles between the phenyl ring and the benzene ring of chromanone unit in the two crystallographically independent molecules are 56.17 (4) and 55.62 (7)°.

The molecular structure is stabilized by weak intramolecular C—H···O interactions and the crystal packing is stabilized by weak C—H···π interactions.

For related literature see: Puviarasan et al. (1998); Tillekeratne et al. (2001); Nissa et al. (2001); Kang et al. (2004); Wu et al. (2005a,b); Schollmeyer et al. (2005). Cg1 and Cg2 are the centroids of the C1–C6 and C11–C16 rings,

respectively.

Computing details top

Data collection: X-AREA (Stoe & Cie, 2002); cell refinement: X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).

Figures top
[Figure 1] Fig. 1. The asymmetric unit of the title compound, with atom labels and 50% probability displacement ellipsoids for non-H atoms.
2-Benzylidene-2,3-dihydro-1H-benzo[f]chromen-1-one top
Crystal data top
C20H14O2F(000) = 1200
Mr = 286.31Dx = 1.338 Mg m3
Orthorhombic, Pca21Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2c -2acCell parameters from 30955 reflections
a = 12.3567 (6) Åθ = 1.7–27.2°
b = 11.2675 (5) ŵ = 0.09 mm1
c = 20.4103 (12) ÅT = 150 K
V = 2841.7 (3) Å3Prism, yellow
Z = 80.32 × 0.23 × 0.18 mm
Data collection top
Stoe IPDS2
diffractometer
2881 independent reflections
Radiation source: fine-focus sealed tube2120 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.105
Detector resolution: 6.67 pixels mm-1θmax = 26.0°, θmin = 1.8°
rotation method scansh = 1515
Absorption correction: integration
(X-RED32; Stoe & Cie, 2002)
k = 1313
Tmin = 0.973, Tmax = 0.985l = 2525
33648 measured reflections
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)] = 0.032Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.061H-atom parameters constrained
S = 0.94 w = 1/[σ2(Fo2) + (0.0267P)2]
where P = (Fo2 + 2Fc2)/3
2881 reflections(Δ/σ)max = 0.001
398 parametersΔρmax = 0.12 e Å3
1 restraintΔρmin = 0.14 e Å3
Crystal data top
C20H14O2V = 2841.7 (3) Å3
Mr = 286.31Z = 8
Orthorhombic, Pca21Mo Kα radiation
a = 12.3567 (6) ŵ = 0.09 mm1
b = 11.2675 (5) ÅT = 150 K
c = 20.4103 (12) Å0.32 × 0.23 × 0.18 mm
Data collection top
Stoe IPDS2
diffractometer
2881 independent reflections
Absorption correction: integration
(X-RED32; Stoe & Cie, 2002)
2120 reflections with I > 2σ(I)
Tmin = 0.973, Tmax = 0.985Rint = 0.105
33648 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0321 restraint
wR(F2) = 0.061H-atom parameters constrained
S = 0.94Δρmax = 0.12 e Å3
2881 reflectionsΔρmin = 0.14 e Å3
398 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
C10.1622 (2)0.0440 (3)0.23909 (15)0.0308 (6)
C20.1523 (2)0.1118 (3)0.29624 (14)0.0377 (7)
H20.20180.17460.30420.045*
C30.0716 (2)0.0885 (3)0.34113 (16)0.0444 (8)
H30.06610.13520.37970.053*
C40.0014 (3)0.0026 (2)0.3303 (2)0.0384 (10)
H40.05600.01950.36170.046*
C50.0056 (2)0.0686 (3)0.27360 (17)0.0380 (7)
H50.04530.13010.26570.046*
C60.0866 (2)0.0461 (3)0.22768 (16)0.0334 (7)
H60.09050.09190.18870.040*
C70.2507 (2)0.0713 (2)0.19390 (15)0.0322 (6)
H70.27140.15240.19250.039*
C80.3068 (3)0.0006 (2)0.1543 (2)0.0292 (9)
C90.3951 (2)0.0516 (2)0.11341 (15)0.0317 (7)
C100.4700 (2)0.0332 (3)0.08277 (15)0.0307 (7)
C110.5574 (3)0.0012 (2)0.0393 (2)0.0283 (9)
C120.5704 (2)0.1172 (3)0.01372 (14)0.0341 (7)
H120.51980.17700.02550.041*
C130.6539 (2)0.1451 (3)0.02748 (15)0.0384 (7)
H130.65950.22330.04460.046*
C140.7310 (3)0.0600 (3)0.04466 (16)0.0406 (8)
H140.78970.08040.07260.049*
C150.7213 (3)0.0530 (3)0.02093 (17)0.0395 (9)
H150.77390.11070.03260.047*
C160.6352 (2)0.0857 (2)0.02037 (14)0.0325 (7)
C170.6268 (2)0.2029 (3)0.04455 (14)0.0372 (7)
H170.68020.25980.03300.045*
C180.5439 (2)0.2354 (2)0.08387 (15)0.0362 (7)
H180.53880.31490.09910.043*
C190.4647 (2)0.1511 (3)0.10228 (15)0.0319 (7)
C200.2890 (2)0.1306 (2)0.14782 (16)0.0354 (7)
H20A0.24420.14600.10850.043*
H20B0.24840.15930.18650.043*
C210.5995 (2)0.5378 (3)0.18920 (15)0.0312 (7)
C220.6709 (2)0.4432 (3)0.19898 (16)0.0357 (7)
H220.66180.39240.23570.043*
C230.7547 (2)0.4230 (3)0.15543 (17)0.0390 (7)
H230.80180.35740.16190.047*
C240.7703 (3)0.4972 (2)0.1031 (2)0.0413 (10)
H240.82870.48340.07380.050*
C250.7012 (2)0.5924 (3)0.09264 (16)0.0408 (7)
H250.71120.64300.05590.049*
C260.6172 (2)0.6127 (2)0.13634 (14)0.0358 (7)
H260.57100.67920.13000.043*
C270.5093 (2)0.5654 (3)0.23332 (14)0.0323 (7)
H270.49040.64700.23540.039*
C280.4494 (3)0.4940 (2)0.2711 (2)0.0311 (10)
C290.3629 (2)0.5486 (3)0.31194 (14)0.0310 (7)
C300.2851 (2)0.4663 (3)0.34178 (15)0.0290 (6)
C310.2010 (3)0.5032 (2)0.3862 (2)0.0285 (9)
C320.1977 (2)0.6160 (3)0.41633 (14)0.0335 (7)
H320.25360.67170.40760.040*
C330.1151 (2)0.6464 (3)0.45793 (14)0.0378 (7)
H330.11580.72220.47830.045*
C340.0293 (3)0.5679 (3)0.47106 (17)0.0391 (8)
H340.02880.59140.49860.047*
C350.0308 (3)0.4586 (3)0.44398 (16)0.0363 (8)
H350.02610.40460.45350.044*
C360.1155 (2)0.4227 (3)0.40164 (14)0.0326 (7)
C370.1164 (2)0.3071 (2)0.37394 (14)0.0354 (7)
H370.05850.25420.38330.042*
C380.1981 (2)0.2705 (3)0.33438 (14)0.0353 (7)
H380.19810.19230.31700.042*
C390.2830 (2)0.3498 (3)0.31937 (15)0.0310 (7)
C400.4609 (2)0.3623 (2)0.27652 (16)0.0354 (7)
H40A0.50290.33260.23860.042*
H40B0.50200.34310.31680.042*
O10.40678 (16)0.16006 (19)0.10971 (12)0.0423 (6)
O20.38869 (16)0.19617 (18)0.14242 (10)0.0380 (5)
O30.35498 (16)0.65771 (18)0.31632 (12)0.0381 (5)
O40.35807 (14)0.30302 (19)0.27852 (10)0.0381 (5)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.0286 (15)0.0270 (16)0.0369 (18)0.0049 (13)0.0027 (14)0.0051 (15)
C20.0379 (17)0.0339 (16)0.0413 (18)0.0000 (13)0.0016 (14)0.0032 (14)
C30.0447 (18)0.046 (2)0.0428 (19)0.0055 (15)0.0031 (15)0.0042 (16)
C40.0350 (18)0.039 (2)0.041 (2)0.0061 (13)0.0028 (17)0.0058 (13)
C50.0272 (15)0.0331 (16)0.054 (2)0.0025 (12)0.0041 (15)0.0053 (15)
C60.0317 (16)0.0319 (18)0.0367 (18)0.0046 (13)0.0026 (14)0.0014 (14)
C70.0293 (14)0.0276 (14)0.0398 (17)0.0014 (12)0.0023 (13)0.0023 (13)
C80.0285 (18)0.026 (2)0.033 (2)0.0008 (11)0.0053 (16)0.0023 (11)
C90.0310 (16)0.0253 (19)0.0390 (18)0.0029 (12)0.0047 (13)0.0002 (14)
C100.0331 (17)0.0302 (15)0.0289 (17)0.0031 (14)0.0063 (14)0.0002 (15)
C110.0317 (19)0.024 (2)0.029 (2)0.0013 (11)0.0034 (15)0.0002 (11)
C120.0392 (17)0.0302 (17)0.0329 (17)0.0038 (13)0.0001 (13)0.0030 (13)
C130.0442 (17)0.0337 (17)0.0372 (17)0.0009 (14)0.0015 (15)0.0044 (14)
C140.0405 (18)0.0408 (19)0.040 (2)0.0040 (15)0.0070 (15)0.0032 (16)
C150.0437 (19)0.034 (2)0.041 (2)0.0082 (15)0.0055 (16)0.0024 (16)
C160.0343 (16)0.0326 (17)0.0305 (16)0.0068 (13)0.0044 (13)0.0010 (12)
C170.0395 (17)0.0301 (16)0.0419 (17)0.0087 (13)0.0006 (14)0.0025 (13)
C180.0447 (17)0.0230 (15)0.0409 (17)0.0063 (13)0.0019 (15)0.0041 (13)
C190.0340 (15)0.0295 (15)0.0323 (17)0.0000 (13)0.0036 (14)0.0015 (13)
C200.0322 (16)0.0315 (17)0.0426 (18)0.0022 (12)0.0007 (14)0.0005 (13)
C210.0322 (17)0.0298 (16)0.0315 (17)0.0020 (14)0.0035 (14)0.0061 (15)
C220.0303 (16)0.0330 (18)0.0439 (19)0.0034 (13)0.0071 (14)0.0030 (14)
C230.0307 (15)0.0337 (16)0.053 (2)0.0004 (13)0.0015 (15)0.0083 (15)
C240.0343 (18)0.045 (2)0.045 (2)0.0030 (13)0.0066 (17)0.0139 (15)
C250.0446 (17)0.0393 (18)0.0384 (18)0.0059 (15)0.0011 (15)0.0025 (14)
C260.0333 (15)0.0339 (15)0.0401 (16)0.0003 (13)0.0018 (14)0.0004 (14)
C270.0335 (16)0.0285 (15)0.0349 (17)0.0014 (12)0.0082 (14)0.0036 (13)
C280.0295 (18)0.030 (2)0.033 (2)0.0011 (12)0.0031 (16)0.0040 (12)
C290.0320 (17)0.0292 (19)0.0317 (16)0.0006 (12)0.0043 (13)0.0036 (14)
C300.0288 (16)0.0269 (15)0.0311 (17)0.0020 (13)0.0020 (13)0.0004 (15)
C310.0304 (19)0.031 (2)0.024 (2)0.0022 (11)0.0061 (15)0.0011 (11)
C320.0327 (16)0.0326 (16)0.0353 (17)0.0001 (12)0.0014 (13)0.0003 (14)
C330.0413 (16)0.0329 (16)0.0392 (17)0.0021 (13)0.0041 (14)0.0030 (13)
C340.0342 (16)0.046 (2)0.037 (2)0.0023 (15)0.0035 (14)0.0011 (16)
C350.0310 (16)0.043 (2)0.035 (2)0.0028 (15)0.0002 (14)0.0057 (16)
C360.0360 (16)0.0308 (16)0.0312 (16)0.0001 (14)0.0057 (14)0.0029 (13)
C370.0376 (16)0.0309 (16)0.0377 (16)0.0068 (13)0.0062 (14)0.0053 (13)
C380.0378 (17)0.0299 (16)0.0382 (17)0.0036 (13)0.0030 (14)0.0015 (13)
C390.0357 (17)0.0293 (15)0.0278 (16)0.0021 (13)0.0011 (14)0.0025 (13)
C400.0335 (15)0.0323 (16)0.0403 (17)0.0003 (12)0.0010 (14)0.0028 (14)
O10.0428 (13)0.0256 (13)0.0584 (15)0.0023 (10)0.0090 (12)0.0049 (11)
O20.0378 (11)0.0292 (12)0.0469 (14)0.0042 (9)0.0059 (10)0.0066 (11)
O30.0386 (12)0.0240 (13)0.0519 (15)0.0005 (9)0.0078 (11)0.0032 (10)
O40.0379 (12)0.0319 (12)0.0446 (14)0.0030 (9)0.0061 (10)0.0061 (10)
Geometric parameters (Å, º) top
C1—C61.398 (5)C21—C261.387 (4)
C1—C21.400 (4)C21—C221.398 (4)
C1—C71.463 (4)C21—C271.466 (4)
C2—C31.380 (4)C22—C231.383 (4)
C2—H20.9500C22—H220.9500
C3—C41.383 (4)C23—C241.370 (5)
C3—H30.9500C23—H230.9500
C4—C51.378 (5)C24—C251.387 (4)
C4—H40.9500C24—H240.9500
C5—C61.394 (4)C25—C261.387 (4)
C5—H50.9500C25—H250.9500
C6—H60.9500C26—H260.9500
C7—C81.338 (4)C27—C281.338 (4)
C7—H70.9500C27—H270.9500
C8—C201.487 (3)C28—C291.488 (5)
C8—C91.493 (5)C28—C401.494 (4)
C9—O11.233 (3)C29—O31.237 (3)
C9—C101.470 (4)C29—C301.467 (4)
C10—C191.388 (4)C30—C391.391 (4)
C10—C111.451 (5)C30—C311.440 (5)
C11—C121.416 (4)C31—C321.412 (4)
C11—C161.426 (4)C31—C361.429 (5)
C12—C131.368 (4)C32—C331.372 (4)
C12—H120.9500C32—H320.9500
C13—C141.396 (4)C33—C341.406 (4)
C13—H130.9500C33—H330.9500
C14—C151.368 (5)C34—C351.350 (5)
C14—H140.9500C34—H340.9500
C15—C161.407 (4)C35—C361.416 (4)
C15—H150.9500C35—H350.9500
C16—C171.413 (4)C36—C371.420 (4)
C17—C181.352 (4)C37—C381.357 (4)
C17—H170.9500C37—H370.9500
C18—C191.415 (4)C38—C391.412 (4)
C18—H180.9500C38—H380.9500
C19—O21.346 (3)C39—O41.354 (3)
C20—O21.440 (3)C40—O41.437 (3)
C20—H20A0.9900C40—H40A0.9900
C20—H20B0.9900C40—H40B0.9900
C6—C1—C2118.4 (3)C26—C21—C27117.9 (3)
C6—C1—C7123.1 (3)C22—C21—C27123.6 (3)
C2—C1—C7118.4 (3)C23—C22—C21120.4 (3)
C3—C2—C1120.8 (3)C23—C22—H22119.8
C3—C2—H2119.6C21—C22—H22119.8
C1—C2—H2119.6C24—C23—C22120.4 (3)
C2—C3—C4120.4 (3)C24—C23—H23119.8
C2—C3—H3119.8C22—C23—H23119.8
C4—C3—H3119.8C23—C24—C25120.4 (4)
C5—C4—C3119.6 (4)C23—C24—H24119.8
C5—C4—H4120.2C25—C24—H24119.8
C3—C4—H4120.2C24—C25—C26119.3 (3)
C4—C5—C6120.7 (3)C24—C25—H25120.4
C4—C5—H5119.6C26—C25—H25120.4
C6—C5—H5119.6C25—C26—C21121.1 (3)
C5—C6—C1120.0 (3)C25—C26—H26119.4
C5—C6—H6120.0C21—C26—H26119.4
C1—C6—H6120.0C28—C27—C21130.3 (3)
C8—C7—C1129.9 (3)C28—C27—H27114.8
C8—C7—H7115.1C21—C27—H27114.8
C1—C7—H7115.1C27—C28—C29118.1 (3)
C7—C8—C20125.0 (3)C27—C28—C40125.9 (3)
C7—C8—C9118.6 (2)C29—C28—C40115.9 (3)
C20—C8—C9116.5 (3)O3—C29—C30123.1 (3)
O1—C9—C10123.0 (3)O3—C29—C28120.6 (3)
O1—C9—C8120.7 (3)C30—C29—C28116.2 (3)
C10—C9—C8116.2 (3)C39—C30—C31117.8 (3)
C19—C10—C11117.8 (3)C39—C30—C29118.2 (3)
C19—C10—C9118.1 (3)C31—C30—C29123.5 (3)
C11—C10—C9123.7 (3)C32—C31—C36117.0 (3)
C12—C11—C16117.3 (3)C32—C31—C30123.7 (3)
C12—C11—C10123.8 (3)C36—C31—C30119.3 (3)
C16—C11—C10118.9 (3)C33—C32—C31121.1 (3)
C13—C12—C11121.6 (3)C33—C32—H32119.4
C13—C12—H12119.2C31—C32—H32119.4
C11—C12—H12119.2C32—C33—C34121.4 (3)
C12—C13—C14120.7 (3)C32—C33—H33119.3
C12—C13—H13119.6C34—C33—H33119.3
C14—C13—H13119.6C35—C34—C33119.1 (3)
C15—C14—C13119.4 (3)C35—C34—H34120.5
C15—C14—H14120.3C33—C34—H34120.5
C13—C14—H14120.3C34—C35—C36121.4 (3)
C14—C15—C16121.5 (3)C34—C35—H35119.3
C14—C15—H15119.2C36—C35—H35119.3
C16—C15—H15119.2C35—C36—C37120.7 (3)
C15—C16—C17120.7 (3)C35—C36—C31120.0 (3)
C15—C16—C11119.4 (3)C37—C36—C31119.3 (3)
C17—C16—C11119.9 (3)C38—C37—C36121.4 (3)
C18—C17—C16121.1 (3)C38—C37—H37119.3
C18—C17—H17119.5C36—C37—H37119.3
C16—C17—H17119.5C37—C38—C39119.3 (3)
C17—C18—C19120.0 (3)C37—C38—H38120.3
C17—C18—H18120.0C39—C38—H38120.3
C19—C18—H18120.0O4—C39—C30123.8 (3)
O2—C19—C10124.6 (3)O4—C39—C38113.4 (2)
O2—C19—C18113.0 (2)C30—C39—C38122.7 (3)
C10—C19—C18122.3 (3)O4—C40—C28112.3 (2)
O2—C20—C8112.7 (2)O4—C40—H40A109.1
O2—C20—H20A109.1C28—C40—H40A109.1
C8—C20—H20A109.1O4—C40—H40B109.1
O2—C20—H20B109.1C28—C40—H40B109.1
C8—C20—H20B109.1H40A—C40—H40B107.9
H20A—C20—H20B107.8C19—O2—C20116.7 (2)
C26—C21—C22118.4 (3)C39—O4—C40116.3 (2)
C6—C1—C2—C31.6 (4)C22—C23—C24—C250.9 (5)
C7—C1—C2—C3178.8 (3)C23—C24—C25—C261.0 (5)
C1—C2—C3—C40.1 (5)C24—C25—C26—C211.8 (4)
C2—C3—C4—C51.3 (5)C22—C21—C26—C252.3 (4)
C3—C4—C5—C61.2 (5)C27—C21—C26—C25179.9 (3)
C4—C5—C6—C10.3 (5)C26—C21—C27—C28152.6 (3)
C2—C1—C6—C51.7 (5)C22—C21—C27—C2830.0 (5)
C7—C1—C6—C5178.8 (3)C21—C27—C28—C29179.2 (3)
C6—C1—C7—C832.2 (5)C21—C27—C28—C400.7 (6)
C2—C1—C7—C8148.3 (4)C27—C28—C29—O37.9 (5)
C1—C7—C8—C200.2 (6)C40—C28—C29—O3172.0 (3)
C1—C7—C8—C9179.2 (3)C27—C28—C29—C30167.8 (3)
C7—C8—C9—O19.3 (5)C40—C28—C29—C3012.3 (4)
C20—C8—C9—O1171.2 (3)O3—C29—C30—C39162.2 (3)
C7—C8—C9—C10166.3 (3)C28—C29—C30—C3913.4 (4)
C20—C8—C9—C1013.1 (4)O3—C29—C30—C318.8 (5)
O1—C9—C10—C19165.1 (3)C28—C29—C30—C31175.6 (3)
C8—C9—C10—C1910.4 (4)C39—C30—C31—C32175.3 (3)
O1—C9—C10—C117.2 (5)C29—C30—C31—C3213.7 (5)
C8—C9—C10—C11177.2 (3)C39—C30—C31—C364.4 (5)
C19—C10—C11—C12177.7 (3)C29—C30—C31—C36166.6 (3)
C9—C10—C11—C1210.0 (5)C36—C31—C32—C330.7 (5)
C19—C10—C11—C161.9 (5)C30—C31—C32—C33179.6 (3)
C9—C10—C11—C16170.4 (3)C31—C32—C33—C341.5 (5)
C16—C11—C12—C130.0 (5)C32—C33—C34—C352.5 (5)
C10—C11—C12—C13179.6 (3)C33—C34—C35—C361.4 (5)
C11—C12—C13—C141.4 (5)C34—C35—C36—C37179.5 (3)
C12—C13—C14—C151.3 (5)C34—C35—C36—C310.7 (5)
C13—C14—C15—C160.1 (5)C32—C31—C36—C351.7 (5)
C14—C15—C16—C17179.8 (3)C30—C31—C36—C35178.5 (3)
C14—C15—C16—C111.5 (5)C32—C31—C36—C37178.5 (3)
C12—C11—C16—C151.4 (5)C30—C31—C36—C371.3 (5)
C10—C11—C16—C15179.0 (3)C35—C36—C37—C38178.6 (3)
C12—C11—C16—C17179.7 (3)C31—C36—C37—C381.6 (4)
C10—C11—C16—C170.7 (5)C36—C37—C38—C391.3 (4)
C15—C16—C17—C18179.5 (3)C31—C30—C39—O4178.7 (3)
C11—C16—C17—C182.2 (5)C29—C30—C39—O49.8 (4)
C16—C17—C18—C191.0 (4)C31—C30—C39—C385.0 (4)
C11—C10—C19—O2179.9 (3)C29—C30—C39—C38166.5 (3)
C9—C10—C19—O27.1 (4)C37—C38—C39—O4178.8 (3)
C11—C10—C19—C183.2 (4)C37—C38—C39—C302.1 (4)
C9—C10—C19—C18169.6 (3)C27—C28—C40—O4138.8 (3)
C17—C18—C19—O2178.8 (3)C29—C28—C40—O441.4 (4)
C17—C18—C19—C101.8 (4)C10—C19—O2—C2021.3 (4)
C7—C8—C20—O2139.9 (3)C18—C19—O2—C20161.7 (2)
C9—C8—C20—O239.5 (4)C8—C20—O2—C1943.8 (4)
C26—C21—C22—C232.2 (4)C30—C39—O4—C4021.4 (4)
C27—C21—C22—C23179.6 (3)C38—C39—O4—C40161.9 (2)
C21—C22—C23—C241.5 (5)C28—C40—O4—C3946.2 (4)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C7—H7···O10.952.382.770 (4)104
C12—H12···O10.952.222.856 (4)123
C27—H27···O30.952.352.755 (4)105
C32—H32···O30.952.252.857 (4)121
C20—H20A···Cg2i0.992.903.735 (3)143
C38—H38···Cg10.952.893.739 (3)149
Symmetry code: (i) x1/2, y, z.

Experimental details

Crystal data
Chemical formulaC20H14O2
Mr286.31
Crystal system, space groupOrthorhombic, Pca21
Temperature (K)150
a, b, c (Å)12.3567 (6), 11.2675 (5), 20.4103 (12)
V3)2841.7 (3)
Z8
Radiation typeMo Kα
µ (mm1)0.09
Crystal size (mm)0.32 × 0.23 × 0.18
Data collection
DiffractometerStoe IPDS2
Absorption correctionIntegration
(X-RED32; Stoe & Cie, 2002)
Tmin, Tmax0.973, 0.985
No. of measured, independent and
observed [I > 2σ(I)] reflections
33648, 2881, 2120
Rint0.105
(sin θ/λ)max1)0.617
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.032, 0.061, 0.94
No. of reflections2881
No. of parameters398
No. of restraints1
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.12, 0.14

Computer programs: X-AREA (Stoe & Cie, 2002), X-RED32 (Stoe & Cie, 2002), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C7—H7···O10.952.382.770 (4)104
C12—H12···O10.952.222.856 (4)123
C27—H27···O30.952.352.755 (4)105
C32—H32···O30.952.252.857 (4)121
C20—H20A···Cg2i0.992.903.735 (3)143
C38—H38···Cg10.952.893.739 (3)149
Symmetry code: (i) x1/2, y, z.
 

Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds