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In the crystal of the title compound, C10H12O2, there are two symmetry-independent mol­ecules, which are essentially superimposable. Each mol­ecule exhibits an intramolecular O-H...O hydrogen bond, with O...O separations of 2.483 (4) and 2.468 (4) Å.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270100006612/qa0296sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270100006612/qa0296Isup2.hkl
Contains datablock I

CCDC reference: 146103

Computing details top

Data collection: P3/P4-PC Diffractometer Control Program(Siemens, 1991); cell refinement: P3/P4-PC Diffractometer Control Program; data reduction: P3/P4-PC Diffractometer Control Program; program(s) used to solve structure: SHELXTL/PC (Sheldrick, 1994); program(s) used to refine structure: SHELXL93 (Sheldrick, 1993); molecular graphics: SHELXTL/PC; software used to prepare material for publication: SHELXTL/PC.

2-hydroxy-4,6-dimethylphenylethanone top
Crystal data top
C10H12O2F(000) = 352
Mr = 164.20Dx = 1.234 Mg m3
Triclinic, P1Melting point: 328 K
a = 7.431 (4) ÅMo Kα radiation, λ = 0.71073 Å
b = 7.604 (3) ÅCell parameters from 50 reflections
c = 16.007 (6) Åθ = 8.1–13.3°
α = 93.61 (3)°µ = 0.09 mm1
β = 95.50 (4)°T = 293 K
γ = 99.89 (4)°Parallelepiped, pale yellow
V = 884.0 (7) Å30.30 × 0.20 × 0.10 mm
Z = 4
Data collection top
Nicolet R3m/V
diffractometer
Rint = 0.004
Radiation source: fine-focus sealed tubeθmax = 25.6°, θmin = 2.6°
Graphite monochromatorh = 08
ω–2θ scansk = 88
2932 measured reflectionsl = 1919
2917 independent reflections2 standard reflections every 150 reflections
1334 reflections with I > 2σ(I) intensity decay: none
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)] = 0.049H-atom parameters constrained
wR(F2) = 0.147 w = 1/[σ2(Fo2) + (0.1115P)2]
where P = (Fo2 + 2Fc2)/3
S = 0.91(Δ/σ)max < 0.001
2917 reflectionsΔρmax = 0.27 e Å3
218 parametersΔρmin = 0.21 e Å3
0 restraintsExtinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: direct methodsExtinction coefficient: 0.0725 (89)
Special details top

Experimental. The data completeness is affected by the omission of the very negative intensities, which generally lie in the outer shell of the data.

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 on F2 for ALL reflections except for 0 with very negative F2 or flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > 2σ(F2) is used only for calculating the R factors for observed reflections 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
O10.1494 (4)0.1435 (4)0.0420 (2)0.0925 (10)
O20.2942 (4)0.2305 (3)0.1044 (2)0.0785 (9)
H2A0.2454 (4)0.1626 (3)0.0636 (2)0.118*
C10.2465 (4)0.4467 (4)0.0032 (2)0.0494 (9)
C20.3099 (5)0.4015 (4)0.0839 (2)0.0538 (9)
C30.3904 (5)0.5317 (5)0.1472 (2)0.0581 (10)
H3A0.4294 (5)0.4978 (5)0.1998 (2)0.070*
C40.4133 (5)0.7091 (5)0.1333 (2)0.0581 (10)
C50.3550 (5)0.7559 (4)0.0548 (2)0.0572 (9)
H5A0.3718 (5)0.8767 (4)0.0453 (2)0.069*
C60.2729 (4)0.6320 (4)0.0107 (2)0.0503 (9)
C70.1599 (5)0.3000 (5)0.0605 (2)0.0609 (10)
C80.0814 (6)0.3244 (6)0.1471 (2)0.0829 (13)
H8A0.0332 (6)0.2094 (6)0.1764 (2)0.124*
H8B0.1758 (6)0.3870 (6)0.1767 (2)0.124*
H8C0.0156 (6)0.3926 (6)0.1440 (2)0.124*
C90.2185 (6)0.7077 (5)0.0924 (2)0.0730 (12)
H9A0.1631 (6)0.6115 (5)0.1336 (2)0.109*
H9B0.3256 (6)0.7740 (5)0.1124 (2)0.109*
H9C0.1321 (6)0.7856 (5)0.0833 (2)0.109*
C100.4975 (6)0.8525 (6)0.2016 (3)0.0897 (14)
H10A0.5020 (6)0.9680 (6)0.1800 (3)0.135*
H10B0.6198 (6)0.8365 (6)0.2203 (3)0.135*
H10C0.4245 (6)0.8448 (6)0.2480 (3)0.135*
O1'0.2981 (4)0.4972 (4)0.6728 (2)0.0899 (10)
O2'0.1634 (4)0.2149 (3)0.5879 (2)0.0765 (9)
H2'A0.2048 (4)0.2811 (3)0.6303 (2)0.115*
C1'0.2504 (4)0.4940 (4)0.5254 (2)0.0493 (9)
C2'0.1758 (4)0.3095 (4)0.5195 (2)0.0507 (9)
C3'0.1112 (5)0.2154 (4)0.4435 (2)0.0550 (9)
H3'A0.0606 (5)0.0945 (4)0.4422 (2)0.066*
C4'0.1196 (5)0.2961 (5)0.3693 (2)0.0602 (10)
C5'0.1900 (5)0.4783 (5)0.3742 (2)0.0647 (10)
H5'A0.1937 (5)0.5353 (5)0.3246 (2)0.078*
C6'0.2547 (5)0.5791 (5)0.4493 (2)0.0548 (9)
C7'0.3147 (5)0.5818 (5)0.6111 (3)0.0652 (11)
C8'0.4068 (6)0.7731 (5)0.6289 (3)0.0939 (15)
H8'A0.4359 (6)0.7998 (5)0.6886 (3)0.141*
H8'B0.5177 (6)0.7929 (5)0.6020 (3)0.141*
H8'C0.3258 (6)0.8496 (5)0.6076 (3)0.141*
C9'0.3248 (6)0.7755 (5)0.4426 (3)0.0904 (14)
H9'A0.3664 (6)0.8334 (5)0.4977 (3)0.136*
H9'B0.4250 (6)0.7886 (5)0.4084 (3)0.136*
H9'C0.2276 (6)0.8295 (5)0.4172 (3)0.136*
C10'0.0510 (7)0.1904 (6)0.2870 (2)0.0950 (15)
H10D0.0672 (7)0.2673 (6)0.2419 (2)0.142*
H10E0.1188 (7)0.0949 (6)0.2796 (2)0.142*
H10F0.0771 (7)0.1413 (6)0.2865 (2)0.142*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.118 (3)0.050 (2)0.104 (2)0.006 (2)0.012 (2)0.007 (2)
O20.101 (2)0.055 (2)0.086 (2)0.0216 (14)0.016 (2)0.0219 (14)
C10.046 (2)0.050 (2)0.055 (2)0.012 (2)0.009 (2)0.005 (2)
C20.056 (2)0.048 (2)0.062 (2)0.016 (2)0.011 (2)0.013 (2)
C30.059 (2)0.074 (3)0.046 (2)0.024 (2)0.009 (2)0.009 (2)
C40.054 (2)0.064 (2)0.058 (2)0.016 (2)0.006 (2)0.005 (2)
C50.065 (2)0.044 (2)0.065 (2)0.013 (2)0.011 (2)0.002 (2)
C60.046 (2)0.053 (2)0.056 (2)0.015 (2)0.010 (2)0.010 (2)
C70.053 (2)0.061 (2)0.070 (3)0.011 (2)0.014 (2)0.005 (2)
C80.078 (3)0.095 (3)0.069 (3)0.012 (2)0.003 (2)0.022 (2)
C90.089 (3)0.072 (3)0.061 (2)0.023 (2)0.001 (2)0.015 (2)
C100.103 (4)0.082 (3)0.076 (3)0.009 (3)0.003 (3)0.019 (2)
O1'0.107 (2)0.092 (2)0.058 (2)0.003 (2)0.013 (2)0.000 (2)
O2'0.102 (2)0.061 (2)0.061 (2)0.0018 (14)0.0032 (14)0.0190 (13)
C1'0.036 (2)0.051 (2)0.059 (2)0.006 (2)0.002 (2)0.004 (2)
C2'0.049 (2)0.048 (2)0.055 (2)0.008 (2)0.003 (2)0.010 (2)
C3'0.057 (2)0.045 (2)0.059 (2)0.003 (2)0.003 (2)0.000 (2)
C4'0.058 (2)0.070 (3)0.053 (2)0.014 (2)0.003 (2)0.002 (2)
C5'0.067 (3)0.075 (3)0.058 (2)0.016 (2)0.016 (2)0.025 (2)
C6'0.044 (2)0.052 (2)0.072 (3)0.010 (2)0.014 (2)0.014 (2)
C7'0.047 (2)0.066 (3)0.077 (3)0.008 (2)0.007 (2)0.009 (2)
C8'0.081 (3)0.070 (3)0.115 (4)0.006 (2)0.012 (3)0.023 (3)
C9'0.088 (3)0.061 (3)0.123 (4)0.004 (2)0.020 (3)0.028 (3)
C10'0.104 (4)0.114 (4)0.063 (3)0.017 (3)0.007 (3)0.010 (3)
Geometric parameters (Å, º) top
O1—C71.236 (4)O1'—C7'1.217 (4)
O2—C21.350 (4)O2'—C2'1.349 (4)
C1—C21.414 (4)C1'—C2'1.411 (4)
C1—C61.423 (4)C1'—C6'1.415 (5)
C1—C71.478 (5)C1'—C7'1.485 (5)
C2—C31.386 (5)C2'—C3'1.373 (5)
C3—C41.366 (5)C3'—C4'1.372 (5)
C4—C51.378 (5)C4'—C5'1.389 (5)
C4—C101.503 (5)C4'—C10'1.497 (5)
C5—C61.383 (5)C5'—C6'1.382 (5)
C6—C91.510 (4)C6'—C9'1.509 (5)
C7—C81.486 (5)C7'—C8'1.495 (5)
C2—C1—C6117.1 (3)C2'—C1'—C6'117.1 (3)
C2—C1—C7118.3 (3)C2'—C1'—C7'116.9 (3)
C6—C1—C7124.7 (3)C6'—C1'—C7'125.9 (3)
O2—C2—C3115.8 (3)O2'—C2'—C3'116.0 (3)
O2—C2—C1122.5 (3)O2'—C2'—C1'122.3 (3)
C3—C2—C1121.6 (3)C3'—C2'—C1'121.8 (3)
C4—C3—C2120.7 (3)C4'—C3'—C2'121.4 (3)
C3—C4—C5118.5 (3)C3'—C4'—C5'117.5 (4)
C3—C4—C10121.6 (4)C3'—C4'—C10'120.5 (4)
C5—C4—C10119.8 (4)C5'—C4'—C10'122.0 (4)
C4—C5—C6123.3 (3)C6'—C5'—C4'123.2 (3)
C5—C6—C1118.7 (3)C5'—C6'—C1'119.0 (3)
C5—C6—C9116.0 (3)C5'—C6'—C9'115.9 (4)
C1—C6—C9125.3 (3)C1'—C6'—C9'125.1 (4)
O1—C7—C1119.0 (4)O1'—C7'—C1'120.6 (4)
O1—C7—C8115.9 (4)O1'—C7'—C8'115.1 (4)
C1—C7—C8125.1 (3)C1'—C7'—C8'124.3 (4)
 

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