Literature DB >> 22059068

Bis(2-bromo-5-methyl-phen-oxy)methane.

Jun-Long Niu, Xia Wang, Lin-Bao Zhang, Mao-Ping Song.   

Abstract

The complete mol-ecule of the title compund, C(15)H(14)Br(2)O(2), is generated by the application of crystallographic twofold symmetry, with the central C atom lying on the rotation axis. The dihedral angle between the benzene rings is 62.4 (3)°. In the crystal, short BrBr contacts [3.4885 (16) Å] occur.

Entities:  

Year:  2011        PMID: 22059068      PMCID: PMC3200963          DOI: 10.1107/S1600536811034805

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For background to bromo­aromatic compounds, see: Butler & Walker (1993 ▶); Seevers & Counsell (1982 ▶). For a related structure, see: Zheng et al. (2004 ▶).

Experimental

Crystal data

C15H14Br2O2 M = 386.08 Orthorhombic, a = 10.7752 (11) Å b = 15.8690 (17) Å c = 4.3272 (10) Å V = 739.9 (2) Å3 Z = 2 Cu Kα radiation μ = 6.91 mm−1 T = 291 K 0.35 × 0.30 × 0.30 mm

Data collection

Agilent Xcalibur Eos Gemini diffractometer Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011 ▶) T min = 0.196, T max = 0.231 1505 measured reflections 1022 independent reflections 754 reflections with I > 2σ(I) R int = 0.044

Refinement

R[F 2 > 2σ(F 2)] = 0.055 wR(F 2) = 0.123 S = 1.02 1022 reflections 88 parameters H-atom parameters constrained Δρmax = 0.36 e Å−3 Δρmin = −0.41 e Å−3 Absolute structure: Flack (1983 ▶), 212 Friedel pairs Flack parameter: −0.11 (9) Data collection: CrysAlis PRO (Agilent, 2011 ▶); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: OLEX2 (Dolomanov et al., 2009 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S1600536811034805/hb6383sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536811034805/hb6383Isup2.hkl Supplementary material file. DOI: 10.1107/S1600536811034805/hb6383Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C15H14Br2O2Dx = 1.733 Mg m3
Mr = 386.08Cu Kα radiation, λ = 1.54178 Å
Orthorhombic, P21212Cell parameters from 443 reflections
a = 10.7752 (11) Åθ = 4.1–69.9°
b = 15.8690 (17) ŵ = 6.91 mm1
c = 4.3272 (10) ÅT = 291 K
V = 739.9 (2) Å3Prism, colorless
Z = 20.35 × 0.30 × 0.30 mm
F(000) = 380
Agilent Xcalibur Eos Gemini diffractometer1022 independent reflections
Radiation source: fine-focus sealed tube754 reflections with I > 2σ(I)
graphiteRint = 0.044
Detector resolution: 16.2312 pixels mm-1θmax = 66.9°, θmin = 5.0°
ω scansh = −12→9
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011)k = −18→14
Tmin = 0.196, Tmax = 0.231l = −3→4
1505 measured reflections
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.055H-atom parameters constrained
wR(F2) = 0.123w = 1/[σ2(Fo2) + (0.040P)2] where P = (Fo2 + 2Fc2)/3
S = 1.02(Δ/σ)max < 0.001
1022 reflectionsΔρmax = 0.36 e Å3
88 parametersΔρmin = −0.41 e Å3
0 restraintsAbsolute structure: Flack (1983), 212 Friedel pairs
Primary atom site location: structure-invariant direct methodsFlack parameter: −0.11 (9)
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.
xyzUiso*/UeqOcc. (<1)
Br10.85154 (9)0.95619 (6)0.6233 (4)0.0946 (6)
O10.6042 (5)0.9803 (3)0.3521 (17)0.0668 (18)
C10.7175 (7)0.8802 (4)0.624 (3)0.054 (2)
C20.6083 (7)0.9029 (5)0.489 (2)0.056 (3)
C30.5091 (8)0.8444 (5)0.500 (2)0.066 (3)
H30.43300.85730.40980.079*
C40.5267 (8)0.7679 (5)0.646 (3)0.070 (3)
H40.46170.72940.65010.084*
C50.6369 (8)0.7465 (4)0.787 (2)0.060 (3)
C60.7312 (8)0.8044 (5)0.779 (2)0.058 (3)
H60.80560.79250.87920.069*
C70.6509 (9)0.6621 (5)0.946 (2)0.090 (3)
H7A0.70230.66841.12610.135*
H7B0.68860.62260.80700.135*
H7C0.57060.64171.00720.135*
C80.50001.00000.168 (4)0.080 (5)
H8A0.48050.95240.03610.096*0.50
H8B0.51951.04760.03610.096*0.50
U11U22U33U12U13U23
Br10.0546 (6)0.0668 (6)0.1623 (14)−0.0129 (5)−0.0131 (8)0.0130 (8)
O10.049 (3)0.062 (3)0.089 (5)0.017 (3)0.004 (4)0.012 (4)
C10.052 (4)0.042 (4)0.066 (7)0.009 (3)0.001 (5)0.004 (5)
C20.048 (4)0.056 (5)0.062 (8)0.020 (4)0.010 (5)−0.001 (5)
C30.043 (4)0.081 (6)0.074 (8)0.006 (5)−0.009 (5)−0.012 (6)
C40.058 (5)0.061 (5)0.090 (9)−0.011 (4)0.009 (7)−0.008 (7)
C50.064 (5)0.041 (4)0.074 (8)−0.006 (4)0.020 (5)−0.001 (5)
C60.058 (5)0.057 (5)0.058 (7)0.008 (4)0.007 (5)0.002 (5)
C70.110 (8)0.062 (5)0.098 (9)−0.002 (6)0.019 (9)0.026 (6)
C80.082 (10)0.077 (9)0.081 (12)0.023 (8)0.0000.000
Br1—C11.882 (7)C5—C61.370 (10)
O1—C21.364 (9)C5—C71.515 (10)
O1—C81.412 (10)C6—H60.9300
C1—C21.363 (11)C7—H7A0.9600
C1—C61.385 (10)C7—H7B0.9600
C2—C31.417 (11)C7—H7C0.9600
C3—C41.383 (11)C8—O1i1.412 (10)
C3—H30.9300C8—H8A0.9700
C4—C51.376 (12)C8—H8B0.9700
C4—H40.9300
C2—O1—C8118.0 (6)C5—C6—C1121.0 (8)
C2—C1—C6122.1 (7)C5—C6—H6119.5
C2—C1—Br1119.4 (6)C1—C6—H6119.5
C6—C1—Br1118.4 (6)C5—C7—H7A109.5
C1—C2—O1117.0 (7)C5—C7—H7B109.5
C1—C2—C3117.6 (8)H7A—C7—H7B109.5
O1—C2—C3125.5 (8)C5—C7—H7C109.5
C4—C3—C2119.2 (8)H7A—C7—H7C109.5
C4—C3—H3120.4H7B—C7—H7C109.5
C2—C3—H3120.4O1—C8—O1i111.2 (12)
C5—C4—C3122.5 (8)O1—C8—H8A109.4
C5—C4—H4118.7O1i—C8—H8A109.4
C3—C4—H4118.7O1—C8—H8B109.4
C6—C5—C4117.6 (8)O1i—C8—H8B109.4
C6—C5—C7122.0 (9)H8A—C8—H8B108.0
C4—C5—C7120.3 (8)
C6—C1—C2—O1177.7 (8)C2—C3—C4—C51.0 (16)
Br1—C1—C2—O11.3 (13)C3—C4—C5—C60.2 (16)
C6—C1—C2—C3−2.4 (15)C3—C4—C5—C7179.6 (9)
Br1—C1—C2—C3−178.8 (7)C4—C5—C6—C1−2.5 (15)
C8—O1—C2—C1170.0 (9)C7—C5—C6—C1178.1 (8)
C8—O1—C2—C3−9.8 (14)C2—C1—C6—C53.7 (15)
C1—C2—C3—C40.1 (15)Br1—C1—C6—C5−179.8 (7)
O1—C2—C3—C4179.9 (9)C2—O1—C8—O1i76.7 (6)
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