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In the title mol­ecule, C17H16O3, the dihedral angle between the benzene rings is 25.75 (3)°. The crystal packing is stabilized by C—H...π inter­actions.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536806036920/lh2175sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536806036920/lh2175Isup2.hkl
Contains datablock I

CCDC reference: 624911

Key indicators

  • Single-crystal X-ray study
  • T = 100 K
  • Mean [sigma](C-C) = 0.001 Å
  • R factor = 0.039
  • wR factor = 0.103
  • Data-to-parameter ratio = 23.0

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT094_ALERT_2_C Ratio of Maximum / Minimum Residual Density .... 2.27
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 39.10 From the CIF: _reflns_number_total 4202 Count of symmetry unique reflns 4207 Completeness (_total/calc) 99.88% 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
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
checkCIF publication errors
Alert level A PUBL024_ALERT_1_A The number of authors is greater than 5. Please specify the role of each of the co-authors for your paper.
Author Response: H.K. Fun and I.A. Razak are supervisors of Jeannie B.-J. Teh whereas S.M. Dharmaprakash is the supervisor of P.S. Patil and V. Shettigar in this collaborative pulication. Mangalore University is involved in the extraction and synthesis of the title compound and USM is involved in the structure determination. All parties are involved in writing up the manuscript.

1 ALERT level A = Data missing that is essential or data in wrong format 0 ALERT level G = General alerts. Data that may be required is missing

Computing details top

Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT; 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).

3,4-Dimethoxychalcone top
Crystal data top
C17H16O3F(000) = 2272
Mr = 268.30Dx = 1.330 Mg m3
Orthorhombic, Fdd2Mo Kα radiation, λ = 0.71073 Å
Hall symbol: F 2 -2dCell parameters from 6250 reflections
a = 27.7541 (4) Åθ = 1.9–39.1°
b = 34.1948 (4) ŵ = 0.09 mm1
c = 5.6487 (1) ÅT = 100 K
V = 5360.88 (14) Å3Block, yellow
Z = 160.51 × 0.37 × 0.33 mm
Data collection top
Brucker SMART APEX2 CCD area-detector
diffractometer
4202 independent reflections
Radiation source: fine-focus sealed tube3915 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.039
Detector resolution: 8.33 pixels mm-1θmax = 39.1°, θmin = 1.9°
ω scansh = 4849
Absorption correction: multi-scan
(SADABS; Bruker, 2005)
k = 6055
Tmin = 0.882, Tmax = 0.971l = 99
41010 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)] = 0.039Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.103H-atom parameters constrained
S = 1.08 w = 1/[σ2(Fo2) + (0.0615P)2 + 1.2638P]
where P = (Fo2 + 2Fc2)/3
4202 reflections(Δ/σ)max < 0.001
183 parametersΔρmax = 0.43 e Å3
1 restraintΔρmin = 0.19 e Å3
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
O10.53281 (3)0.07319 (3)0.34973 (16)0.02852 (19)
O20.29358 (3)0.06721 (2)0.19859 (16)0.01987 (15)
O30.30342 (3)0.02278 (2)0.56221 (15)0.01910 (14)
C10.62031 (4)0.06420 (3)0.11941 (19)0.01817 (16)
H1A0.60350.04810.22310.022*
C20.66863 (4)0.07310 (3)0.1631 (2)0.02060 (18)
H2A0.68420.06210.29270.025*
C30.69353 (4)0.09837 (3)0.0135 (2)0.01991 (17)
H3A0.72560.10440.04360.024*
C40.67020 (4)0.11471 (3)0.1819 (2)0.01903 (17)
H4A0.68640.13220.27920.023*
C50.62266 (4)0.10473 (3)0.23081 (19)0.01755 (16)
H5A0.60760.11490.36440.021*
C60.59729 (3)0.07951 (3)0.08025 (18)0.01489 (14)
C70.54613 (3)0.06996 (3)0.14283 (18)0.01724 (16)
C80.51258 (3)0.05862 (3)0.04833 (18)0.01668 (15)
H8A0.52410.05170.19720.020*
C90.46485 (3)0.05849 (3)0.00222 (19)0.01581 (15)
H9A0.45600.06480.15190.019*
C100.42538 (3)0.04967 (3)0.16424 (17)0.01460 (14)
C110.37894 (3)0.06310 (3)0.10095 (18)0.01509 (14)
H11A0.37490.07760.03700.018*
C120.33943 (3)0.05493 (3)0.24211 (18)0.01480 (14)
C130.34501 (3)0.03140 (3)0.44605 (18)0.01447 (14)
C140.39091 (3)0.01889 (3)0.51160 (18)0.01596 (15)
H14A0.39490.00410.64840.019*
C150.43090 (3)0.02839 (3)0.37332 (18)0.01565 (15)
H15A0.46150.02050.42090.019*
C160.28695 (4)0.09353 (3)0.0052 (2)0.02065 (17)
H16A0.25380.10140.00200.031*
H16B0.29560.08070.13990.031*
H16C0.30700.11610.02740.031*
C170.30589 (4)0.00594 (3)0.7473 (2)0.01967 (17)
H17A0.27400.01130.80500.030*
H17B0.32540.00380.87440.030*
H17C0.31990.02960.68640.030*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0187 (3)0.0528 (6)0.0141 (3)0.0041 (3)0.0013 (3)0.0020 (3)
O20.0121 (3)0.0247 (3)0.0228 (4)0.0015 (2)0.0002 (2)0.0056 (3)
O30.0149 (3)0.0226 (3)0.0198 (3)0.0009 (2)0.0029 (2)0.0041 (3)
C10.0164 (4)0.0230 (4)0.0151 (4)0.0022 (3)0.0008 (3)0.0043 (3)
C20.0170 (4)0.0280 (5)0.0168 (4)0.0022 (3)0.0023 (3)0.0033 (4)
C30.0158 (4)0.0236 (4)0.0203 (4)0.0042 (3)0.0002 (3)0.0007 (3)
C40.0187 (4)0.0185 (4)0.0199 (4)0.0026 (3)0.0035 (3)0.0022 (3)
C50.0173 (3)0.0188 (4)0.0166 (4)0.0007 (3)0.0015 (3)0.0043 (3)
C60.0137 (3)0.0174 (4)0.0135 (3)0.0001 (3)0.0009 (3)0.0007 (3)
C70.0143 (3)0.0228 (4)0.0146 (4)0.0003 (3)0.0002 (3)0.0002 (3)
C80.0142 (3)0.0207 (4)0.0151 (4)0.0005 (3)0.0008 (3)0.0003 (3)
C90.0135 (3)0.0185 (3)0.0154 (4)0.0010 (3)0.0005 (3)0.0012 (3)
C100.0124 (3)0.0164 (3)0.0150 (4)0.0008 (3)0.0002 (3)0.0019 (3)
C110.0132 (3)0.0172 (3)0.0149 (3)0.0007 (3)0.0000 (3)0.0006 (3)
C120.0125 (3)0.0162 (3)0.0157 (4)0.0001 (3)0.0001 (3)0.0001 (3)
C130.0140 (3)0.0152 (3)0.0143 (3)0.0013 (3)0.0009 (3)0.0008 (3)
C140.0154 (3)0.0167 (3)0.0158 (4)0.0000 (3)0.0006 (3)0.0005 (3)
C150.0134 (3)0.0172 (4)0.0164 (4)0.0008 (3)0.0004 (3)0.0003 (3)
C160.0176 (4)0.0244 (4)0.0199 (4)0.0030 (3)0.0027 (3)0.0028 (4)
C170.0210 (4)0.0203 (4)0.0177 (4)0.0039 (3)0.0025 (3)0.0017 (3)
Geometric parameters (Å, º) top
O1—C71.2307 (13)C8—H8A0.9300
O2—C121.3624 (11)C9—C101.4592 (13)
O2—C161.4271 (13)C9—H9A0.9300
O3—C131.3599 (12)C10—C151.3956 (14)
O3—C171.4362 (13)C10—C111.4141 (13)
C1—C21.3972 (14)C11—C121.3843 (13)
C1—C61.3979 (14)C11—H11A0.9300
C1—H1A0.9300C12—C131.4138 (14)
C2—C31.3922 (15)C13—C141.3939 (13)
C2—H2A0.9300C14—C151.3956 (14)
C3—C41.3962 (16)C14—H14A0.9300
C3—H3A0.9300C15—H15A0.9300
C4—C51.3907 (14)C16—H16A0.9600
C4—H4A0.9300C16—H16B0.9600
C5—C61.4009 (13)C16—H16C0.9600
C5—H5A0.9300C17—H17A0.9600
C6—C71.4995 (13)C17—H17B0.9600
C7—C81.4776 (14)C17—H17C0.9600
C8—C91.3498 (13)
C12—O2—C16116.93 (8)C15—C10—C9123.78 (8)
C13—O3—C17117.32 (8)C11—C10—C9117.30 (9)
C2—C1—C6119.96 (9)C12—C11—C10120.71 (9)
C2—C1—H1A120.0C12—C11—H11A119.6
C6—C1—H1A120.0C10—C11—H11A119.6
C3—C2—C1120.30 (10)O2—C12—C11125.01 (9)
C3—C2—H2A119.8O2—C12—C13115.13 (8)
C1—C2—H2A119.8C11—C12—C13119.84 (8)
C2—C3—C4119.87 (9)O3—C13—C14125.52 (9)
C2—C3—H3A120.1O3—C13—C12115.06 (8)
C4—C3—H3A120.1C14—C13—C12119.41 (8)
C5—C4—C3119.92 (9)C13—C14—C15120.45 (9)
C5—C4—H4A120.0C13—C14—H14A119.8
C3—C4—H4A120.0C15—C14—H14A119.8
C4—C5—C6120.48 (9)C14—C15—C10120.51 (9)
C4—C5—H5A119.8C14—C15—H15A119.7
C6—C5—H5A119.8C10—C15—H15A119.7
C1—C6—C5119.39 (9)O2—C16—H16A109.5
C1—C6—C7122.77 (9)O2—C16—H16B109.5
C5—C6—C7117.84 (9)H16A—C16—H16B109.5
O1—C7—C8121.89 (9)O2—C16—H16C109.5
O1—C7—C6119.25 (9)H16A—C16—H16C109.5
C8—C7—C6118.80 (9)H16B—C16—H16C109.5
C9—C8—C7118.57 (9)O3—C17—H17A109.5
C9—C8—H8A120.7O3—C17—H17B109.5
C7—C8—H8A120.7H17A—C17—H17B109.5
C8—C9—C10128.06 (10)O3—C17—H17C109.5
C8—C9—H9A116.0H17A—C17—H17C109.5
C10—C9—H9A116.0H17B—C17—H17C109.5
C15—C10—C11118.91 (8)
C6—C1—C2—C32.44 (17)C15—C10—C11—C120.78 (14)
C1—C2—C3—C40.39 (17)C9—C10—C11—C12178.15 (9)
C2—C3—C4—C52.05 (16)C16—O2—C12—C116.29 (15)
C3—C4—C5—C62.45 (16)C16—O2—C12—C13175.24 (9)
C2—C1—C6—C52.04 (16)C10—C11—C12—O2178.64 (9)
C2—C1—C6—C7177.61 (10)C10—C11—C12—C132.96 (14)
C4—C5—C6—C10.40 (15)C17—O3—C13—C149.36 (14)
C4—C5—C6—C7179.93 (9)C17—O3—C13—C12170.33 (9)
C1—C6—C7—O1156.45 (11)O2—C12—C13—O33.23 (13)
C5—C6—C7—O123.20 (15)C11—C12—C13—O3175.33 (9)
C1—C6—C7—C826.29 (14)O2—C12—C13—C14177.06 (9)
C5—C6—C7—C8154.06 (9)C11—C12—C13—C144.38 (14)
O1—C7—C8—C911.70 (16)O3—C13—C14—C15177.59 (9)
C6—C7—C8—C9165.49 (9)C12—C13—C14—C152.08 (14)
C7—C8—C9—C10177.79 (9)C13—C14—C15—C101.68 (14)
C8—C9—C10—C1520.71 (16)C11—C10—C15—C143.11 (14)
C8—C9—C10—C11160.42 (10)C9—C10—C15—C14175.75 (9)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C9—H9A···O10.932.422.786 (1)103
C17—H17C···Cg1i0.962.753.384 (1)124
Symmetry code: (i) x+1, y, z+1.
 

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