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In the title compound, C18H17BrO4, the dihedral angle between the benzene rings is 9.60 (16)°. The crystal structure is stabilized by inter­molecular C—H...O inter­actions and Br...O short contacts.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536806038232/is2077sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536806038232/is2077Isup2.hkl
Contains datablock I

CCDC reference: 624887

Key indicators

  • Single-crystal X-ray study
  • T = 100 K
  • Mean [sigma](C-C) = 0.005 Å
  • R factor = 0.032
  • wR factor = 0.074
  • Data-to-parameter ratio = 14.7

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT431_ALERT_2_C Short Inter HL..A Contact Br1 .. O4 .. 3.26 Ang.
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 25.85 From the CIF: _reflns_number_total 3101 Count of symmetry unique reflns 1811 Completeness (_total/calc) 171.23% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 1290 Fraction of Friedel pairs measured 0.712 Are heavy atom types Z>Si present yes
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 1 ALERT level C = Check and explain 1 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 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

Computing details top

Data collection: APEX2 (Bruker, 2005); cell refinement: APEX2; data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXTL (Sheldrick, 1998); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2003).

1-(4-Bromophenyl)-3-(2,4,5-trimethoxyphenyl)prop-2-en-1-one top
Crystal data top
C18H17BrO4F(000) = 768
Mr = 377.23Dx = 1.555 Mg m3
Orthorhombic, P212121Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2abCell parameters from 5753 reflections
a = 7.3031 (3) Åθ = 2.7–25.9°
b = 10.3422 (4) ŵ = 2.57 mm1
c = 21.3355 (9) ÅT = 100 K
V = 1611.47 (11) Å3Block, yellow
Z = 40.27 × 0.15 × 0.11 mm
Data collection top
Bruker SMART APEX2 CCD area-detector
diffractometer
3101 independent reflections
Radiation source: fine-focus sealed tube2434 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.089
Detector resolution: 8.33 pixels mm-1θmax = 25.9°, θmin = 2.2°
ω scansh = 88
Absorption correction: multi-scan
(SADABS; Bruker, 2005)
k = 1212
Tmin = 0.577, Tmax = 0.754l = 2626
31612 measured reflections
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.032H-atom parameters constrained
wR(F2) = 0.074 w = 1/[σ2(Fo2) + (0.0183P)2 + 1.5972P]
where P = (Fo2 + 2Fc2)/3
S = 1.03(Δ/σ)max < 0.001
3101 reflectionsΔρmax = 0.58 e Å3
211 parametersΔρmin = 0.57 e Å3
0 restraintsAbsolute structure: Flack (1983), 1295 Friedel pairs
Primary atom site location: structure-invariant direct methodsAbsolute structure parameter: 0.006 (13)
Special details top

Experimental. The data was collected with the Oxford Cyrosystem Cobra low-temperature attachment.

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
Br10.75067 (6)0.50701 (3)0.522492 (15)0.02785 (10)
O10.0275 (4)0.5522 (2)0.69725 (12)0.0269 (6)
O20.5419 (4)0.8024 (2)0.74576 (12)0.0233 (6)
O30.7339 (4)1.1755 (2)0.62420 (10)0.0220 (5)
O40.4444 (3)1.1586 (2)0.55539 (11)0.0226 (6)
C10.2838 (5)0.6960 (3)0.58341 (16)0.0226 (10)
H1A0.22360.77310.57440.027*
C20.4470 (5)0.6679 (4)0.55286 (17)0.0222 (8)
H2A0.49670.72570.52410.027*
C30.5339 (5)0.5524 (3)0.56607 (17)0.0209 (8)
C40.4636 (5)0.4662 (3)0.60968 (17)0.0222 (9)
H4A0.52350.38880.61820.027*
C50.3033 (4)0.4974 (4)0.64020 (15)0.0225 (8)
H5A0.25750.44100.67030.027*
C60.2078 (5)0.6111 (3)0.62743 (16)0.0188 (9)
C70.0286 (5)0.6332 (3)0.65931 (17)0.0200 (8)
C80.0785 (5)0.7502 (3)0.64532 (18)0.0214 (9)
H8A0.03120.81170.61800.026*
C90.2432 (7)0.7694 (3)0.67133 (14)0.0199 (7)
H9A0.28350.70580.69890.024*
C100.3659 (5)0.8776 (3)0.66154 (17)0.0185 (8)
C110.5219 (5)0.8909 (3)0.69885 (17)0.0196 (8)
C120.6480 (5)0.9897 (3)0.68787 (15)0.0186 (7)
H12A0.75150.99710.71300.022*
C130.6191 (5)1.0767 (3)0.63955 (17)0.0180 (8)
C140.4602 (5)1.0667 (3)0.60168 (16)0.0183 (8)
C150.3386 (5)0.9683 (3)0.61271 (17)0.0199 (8)
H15A0.23540.96100.58740.024*
C160.7169 (5)0.7948 (4)0.77547 (18)0.0250 (9)
H16A0.72280.71800.80060.038*
H16B0.73440.86930.80170.038*
H16D0.81110.79220.74410.038*
C170.9052 (5)1.1820 (4)0.65640 (19)0.0261 (9)
H17A0.98041.24750.63760.039*
H17D0.96601.09990.65350.039*
H17B0.88431.20280.69970.039*
C180.2963 (5)1.1422 (4)0.51215 (17)0.0251 (10)
H18D0.29901.21050.48170.038*
H18A0.18221.14470.53440.038*
H18B0.30841.06040.49130.038*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Br10.02475 (17)0.02688 (18)0.03193 (17)0.0044 (3)0.0064 (2)0.00202 (18)
O10.0295 (16)0.0240 (14)0.0272 (14)0.0028 (12)0.0054 (13)0.0067 (12)
O20.0244 (15)0.0240 (14)0.0214 (13)0.0035 (12)0.0043 (12)0.0068 (11)
O30.0232 (14)0.0212 (11)0.0216 (12)0.0047 (15)0.0049 (14)0.0022 (10)
O40.0253 (15)0.0217 (14)0.0209 (13)0.0032 (12)0.0078 (12)0.0048 (11)
C10.029 (3)0.0140 (17)0.0249 (19)0.0045 (17)0.0032 (18)0.0012 (14)
C20.026 (2)0.0188 (19)0.0222 (19)0.0003 (17)0.0003 (18)0.0023 (16)
C30.024 (2)0.0207 (19)0.0176 (18)0.0016 (16)0.0027 (17)0.0058 (15)
C40.025 (2)0.018 (2)0.0234 (19)0.0059 (16)0.0076 (17)0.0025 (16)
C50.027 (2)0.0202 (18)0.0205 (16)0.0026 (18)0.0009 (13)0.0029 (18)
C60.022 (2)0.0167 (18)0.0181 (17)0.0006 (15)0.0013 (16)0.0030 (14)
C70.024 (2)0.0160 (18)0.0199 (19)0.0025 (16)0.0022 (18)0.0027 (16)
C80.025 (2)0.0185 (19)0.0206 (19)0.0019 (16)0.0002 (17)0.0033 (17)
C90.0252 (18)0.0176 (15)0.0169 (16)0.000 (2)0.003 (2)0.0001 (13)
C100.021 (2)0.0173 (19)0.0171 (19)0.0003 (16)0.0003 (16)0.0039 (16)
C110.023 (2)0.0179 (19)0.0176 (19)0.0035 (16)0.0002 (17)0.0032 (15)
C120.0197 (18)0.0190 (18)0.0171 (16)0.0023 (17)0.0018 (14)0.0022 (18)
C130.020 (2)0.0144 (19)0.0193 (19)0.0009 (16)0.0007 (16)0.0038 (15)
C140.022 (2)0.0167 (18)0.0159 (18)0.0001 (16)0.0006 (17)0.0013 (15)
C150.0190 (18)0.022 (2)0.0188 (18)0.0011 (15)0.0013 (16)0.0023 (15)
C160.024 (3)0.0279 (19)0.0235 (18)0.0002 (17)0.0017 (19)0.0071 (16)
C170.019 (2)0.030 (2)0.029 (2)0.0052 (18)0.0033 (18)0.0047 (19)
C180.030 (3)0.0227 (18)0.0223 (19)0.0000 (16)0.0085 (17)0.0016 (16)
Geometric parameters (Å, º) top
Br1—C31.895 (4)C8—H8A0.9300
O1—C71.235 (4)C9—C101.449 (5)
O2—C111.364 (4)C9—H9A0.9300
O2—C161.429 (4)C10—C111.397 (5)
O3—C131.362 (4)C10—C151.416 (5)
O3—C171.429 (5)C11—C121.395 (5)
O4—C141.376 (4)C12—C131.385 (5)
O4—C181.432 (4)C12—H12A0.9300
C1—C21.389 (5)C13—C141.418 (5)
C1—C61.401 (5)C14—C151.370 (5)
C1—H1A0.9300C15—H15A0.9300
C2—C31.382 (5)C16—H16A0.9600
C2—H2A0.9300C16—H16B0.9600
C3—C41.388 (5)C16—H16D0.9600
C4—C51.378 (5)C17—H17A0.9600
C4—H4A0.9300C17—H17D0.9600
C5—C61.394 (5)C17—H17B0.9600
C5—H5A0.9300C18—H18D0.9600
C6—C71.493 (5)C18—H18A0.9600
C7—C81.472 (5)C18—H18B0.9600
C8—C91.339 (6)
C11—O2—C16117.3 (3)O2—C11—C12122.9 (3)
C13—O3—C17117.3 (3)O2—C11—C10116.1 (3)
C14—O4—C18116.4 (3)C12—C11—C10121.0 (3)
C2—C1—C6121.6 (3)C13—C12—C11120.0 (3)
C2—C1—H1A119.2C13—C12—H12A120.0
C6—C1—H1A119.2C11—C12—H12A120.0
C3—C2—C1118.6 (4)O3—C13—C12124.9 (3)
C3—C2—H2A120.7O3—C13—C14115.0 (3)
C1—C2—H2A120.7C12—C13—C14120.1 (3)
C2—C3—C4121.5 (4)C15—C14—O4125.6 (3)
C2—C3—Br1119.9 (3)C15—C14—C13119.1 (3)
C4—C3—Br1118.6 (3)O4—C14—C13115.3 (3)
C5—C4—C3118.7 (3)C14—C15—C10121.8 (3)
C5—C4—H4A120.6C14—C15—H15A119.1
C3—C4—H4A120.6C10—C15—H15A119.1
C4—C5—C6122.1 (3)O2—C16—H16A109.5
C4—C5—H5A119.0O2—C16—H16B109.5
C6—C5—H5A119.0H16A—C16—H16B109.5
C5—C6—C1117.5 (3)O2—C16—H16D109.5
C5—C6—C7118.6 (3)H16A—C16—H16D109.5
C1—C6—C7123.8 (3)H16B—C16—H16D109.5
O1—C7—C8121.0 (4)O3—C17—H17A109.5
O1—C7—C6119.1 (3)O3—C17—H17D109.5
C8—C7—C6120.0 (3)H17A—C17—H17D109.5
C9—C8—C7121.0 (3)O3—C17—H17B109.5
C9—C8—H8A119.5H17A—C17—H17B109.5
C7—C8—H8A119.5H17D—C17—H17B109.5
C8—C9—C10127.6 (3)O4—C18—H18D109.5
C8—C9—H9A116.2O4—C18—H18A109.5
C10—C9—H9A116.2H18D—C18—H18A109.5
C11—C10—C15117.9 (3)O4—C18—H18B109.5
C11—C10—C9119.9 (3)H18D—C18—H18B109.5
C15—C10—C9122.1 (3)H18A—C18—H18B109.5
C6—C1—C2—C30.8 (5)C15—C10—C11—O2179.3 (3)
C1—C2—C3—C41.2 (5)C9—C10—C11—O23.9 (5)
C1—C2—C3—Br1177.0 (3)C15—C10—C11—C120.8 (5)
C2—C3—C4—C50.0 (5)C9—C10—C11—C12176.1 (3)
Br1—C3—C4—C5178.3 (3)O2—C11—C12—C13179.8 (3)
C3—C4—C5—C61.7 (5)C10—C11—C12—C130.3 (5)
C4—C5—C6—C12.1 (5)C17—O3—C13—C126.4 (5)
C4—C5—C6—C7175.7 (3)C17—O3—C13—C14173.5 (3)
C2—C1—C6—C50.8 (5)C11—C12—C13—O3179.1 (3)
C2—C1—C6—C7176.9 (3)C11—C12—C13—C140.8 (5)
C5—C6—C7—O11.9 (5)C18—O4—C14—C155.7 (5)
C1—C6—C7—O1179.6 (3)C18—O4—C14—C13173.2 (3)
C5—C6—C7—C8178.0 (3)O3—C13—C14—C15178.5 (3)
C1—C6—C7—C80.3 (5)C12—C13—C14—C151.5 (5)
O1—C7—C8—C92.8 (6)O3—C13—C14—O40.5 (4)
C6—C7—C8—C9177.2 (3)C12—C13—C14—O4179.5 (3)
C7—C8—C9—C10178.8 (3)O4—C14—C15—C10179.9 (3)
C8—C9—C10—C11171.4 (4)C13—C14—C15—C101.0 (5)
C8—C9—C10—C1511.9 (6)C11—C10—C15—C140.1 (5)
C16—O2—C11—C1213.7 (5)C9—C10—C15—C14176.6 (3)
C16—O2—C11—C10166.3 (3)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C9—H9A···O10.932.452.799 (5)102
C9—H9A···O20.932.362.720 (5)103
C12—H12A···O1i0.932.573.470 (4)164
C16—H16B···O1i0.962.573.303 (5)133
Symmetry code: (i) x+1, y+1/2, z+3/2.
 

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