organic compounds
1-(3,3-Dichloroallyloxy)-2-nitrobenzene
aSecurity and Environment Engineering College, Capital University of Economics and Business, Beijing 10070, People's Republic of China
*Correspondence e-mail: nanoren@126.com
In the title compound, C9H7Cl2NO3, the dihedral angle between the benzene ring and the plane of the nitro group is 50.2 (1)°, and that between the benzene ring and the best plane through the dichloroallyl fragment is 40.1 (1)°.
Related literature
For the synthesis and applications of the title compound, see: Walker et al. (2005). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Data collection: CAD-4 Software (Enraf–Nonius, 1985); cell CAD-4 Software; data reduction: XCAD4 (Harms & Wocadlo,1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXS97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536812010070/vm2161sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812010070/vm2161Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812010070/vm2161Isup3.cml
The title compound, (I) was prepared by a method reported in literature (Walker et al., 2005). The crystals were obtained by dissolving (I) (0.1 g) in methanol (30 ml) and evaporating the solvent slowly at room temperature for about 8 d.
All H atoms were positioned geometrically and constrained to ride on their parent atoms, with C—H = 0.93 Å for aromatic H and 0.96 Å for alkyl H, respectively. The Uiso(H) = xUeq(C), where x = 1.2 for aromatic H and x = 1.5 for other H.
The title compound, 1-(3,3-dichloroallyloxy)-2-nitrobenzene is an important intermediate in the synthesis of phenanthrenes (Walker et al., 2005). Here we report here the molecular and
of the title compound (Fig. 1).There are no classic hydrogen bonds found, but a short intramolecular contact C7—H7B···Cl2 is observed (C7—H7B: 0.97 Å, H7B···Cl2: 2.700 Å, C7···Cl2: 3.139 (3) Å, C7—H7B···Cl2: 108.00).
The dihedral angle between the benzene ring (C1—C6) and the plane of the nitro group is 50.2 (1)°, and between the benzene ring and the best plane through the dichloroallyl fragment (C7—C9, Cl1, Cl2) 40.1 (1)°.
The packing is shown in Figure 2 and contains a short Cl1···Cl2 (x + 1, y, z) contact (3.6668 (16) Å).
For the synthesis and applications of the title compound, see: Walker et al. (2005). For bond-length data, see: Allen et al. (1987).
Data collection: CAD-4 Software (Enraf–Nonius, 1985); cell
CAD-4 Software (Enraf–Nonius, 1985); data reduction: XCAD4 (Harms & Wocadlo,1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXS97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of (I), with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. Packing diagram of (I) viewed down the a-axis. |
C9H7Cl2NO3 | F(000) = 504 |
Mr = 248.06 | Dx = 1.555 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 25 reflections |
a = 4.0210 (8) Å | θ = 10–13° |
b = 21.506 (4) Å | µ = 0.60 mm−1 |
c = 12.333 (3) Å | T = 293 K |
β = 96.41 (3)° | Block, colourless |
V = 1059.8 (4) Å3 | 0.30 × 0.20 × 0.10 mm |
Z = 4 |
Enraf–Nonius CAD-4 diffractometer | 1416 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.063 |
Graphite monochromator | θmax = 25.4°, θmin = 1.9° |
ω/2θ scans | h = 0→4 |
Absorption correction: ψ scan (North et al., 1968) | k = −25→25 |
Tmin = 0.841, Tmax = 0.943 | l = −14→14 |
4390 measured reflections | 3 standard reflections every 200 reflections |
1941 independent reflections | intensity decay: 1% |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.164 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.1P)2 + 0.2P] where P = (Fo2 + 2Fc2)/3 |
1941 reflections | (Δ/σ)max < 0.001 |
136 parameters | Δρmax = 0.36 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
C9H7Cl2NO3 | V = 1059.8 (4) Å3 |
Mr = 248.06 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 4.0210 (8) Å | µ = 0.60 mm−1 |
b = 21.506 (4) Å | T = 293 K |
c = 12.333 (3) Å | 0.30 × 0.20 × 0.10 mm |
β = 96.41 (3)° |
Enraf–Nonius CAD-4 diffractometer | 1416 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.063 |
Tmin = 0.841, Tmax = 0.943 | 3 standard reflections every 200 reflections |
4390 measured reflections | intensity decay: 1% |
1941 independent reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.164 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.36 e Å−3 |
1941 reflections | Δρmin = −0.29 e Å−3 |
136 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
N | −0.0930 (8) | 0.17453 (13) | 0.1420 (2) | 0.0607 (7) | |
Cl1 | 0.6644 (2) | 0.46194 (4) | 0.18851 (7) | 0.0679 (3) | |
C1 | 0.1777 (8) | 0.19522 (14) | 0.4390 (2) | 0.0509 (7) | |
H1A | 0.2853 | 0.2241 | 0.4870 | 0.061* | |
O1 | −0.0106 (14) | 0.13642 (18) | 0.0804 (2) | 0.1309 (16) | |
Cl2 | 0.3945 (3) | 0.44863 (4) | 0.39369 (7) | 0.0729 (3) | |
C2 | 0.0679 (9) | 0.13945 (15) | 0.4779 (3) | 0.0591 (8) | |
H2A | 0.0987 | 0.1315 | 0.5525 | 0.071* | |
O2 | −0.2241 (10) | 0.22293 (15) | 0.1110 (2) | 0.0977 (10) | |
O3 | 0.2229 (6) | 0.26084 (9) | 0.28095 (15) | 0.0551 (6) | |
C3 | −0.0868 (9) | 0.09520 (15) | 0.4083 (3) | 0.0612 (9) | |
H3A | −0.1589 | 0.0579 | 0.4358 | 0.073* | |
C4 | −0.1329 (9) | 0.10674 (14) | 0.2985 (3) | 0.0568 (8) | |
H4A | −0.2332 | 0.0771 | 0.2507 | 0.068* | |
C5 | −0.0295 (8) | 0.16271 (13) | 0.2596 (2) | 0.0469 (7) | |
C6 | 0.1265 (7) | 0.20796 (12) | 0.3279 (2) | 0.0430 (6) | |
C7 | 0.4163 (8) | 0.30524 (12) | 0.3477 (2) | 0.0480 (7) | |
H7A | 0.6064 | 0.2853 | 0.3891 | 0.058* | |
H7B | 0.2808 | 0.3250 | 0.3982 | 0.058* | |
C8 | 0.5296 (7) | 0.35136 (14) | 0.2706 (2) | 0.0491 (7) | |
H8A | 0.6086 | 0.3361 | 0.2077 | 0.059* | |
C9 | 0.5280 (8) | 0.41198 (13) | 0.2834 (2) | 0.0495 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
N | 0.0812 (19) | 0.0533 (16) | 0.0480 (13) | −0.0130 (14) | 0.0079 (14) | −0.0101 (12) |
Cl1 | 0.0832 (6) | 0.0472 (5) | 0.0752 (6) | −0.0049 (4) | 0.0172 (5) | 0.0102 (4) |
C1 | 0.0600 (18) | 0.0462 (16) | 0.0462 (14) | 0.0020 (13) | 0.0041 (14) | −0.0025 (11) |
O1 | 0.220 (5) | 0.112 (3) | 0.0666 (17) | 0.022 (3) | 0.040 (2) | −0.0235 (17) |
Cl2 | 0.1011 (7) | 0.0526 (5) | 0.0672 (5) | 0.0023 (4) | 0.0188 (5) | −0.0173 (4) |
C2 | 0.074 (2) | 0.0536 (18) | 0.0500 (16) | 0.0020 (16) | 0.0084 (16) | 0.0078 (13) |
O2 | 0.135 (3) | 0.095 (2) | 0.0579 (15) | 0.003 (2) | −0.0152 (16) | 0.0072 (14) |
O3 | 0.0769 (15) | 0.0431 (11) | 0.0442 (10) | −0.0160 (10) | 0.0011 (10) | 0.0008 (8) |
C3 | 0.079 (2) | 0.0393 (16) | 0.0656 (19) | −0.0027 (15) | 0.0118 (17) | 0.0086 (13) |
C4 | 0.067 (2) | 0.0393 (15) | 0.0654 (19) | −0.0041 (14) | 0.0134 (16) | −0.0075 (13) |
C5 | 0.0562 (17) | 0.0428 (16) | 0.0429 (13) | 0.0000 (12) | 0.0112 (12) | −0.0062 (11) |
C6 | 0.0482 (15) | 0.0364 (14) | 0.0451 (13) | 0.0027 (11) | 0.0082 (12) | −0.0041 (10) |
C7 | 0.0560 (17) | 0.0402 (15) | 0.0464 (14) | −0.0034 (12) | −0.0003 (13) | −0.0040 (11) |
C8 | 0.0521 (17) | 0.0419 (15) | 0.0537 (15) | −0.0033 (12) | 0.0078 (14) | −0.0035 (11) |
C9 | 0.0548 (18) | 0.0421 (16) | 0.0512 (16) | −0.0006 (12) | 0.0042 (14) | −0.0020 (11) |
N—O1 | 1.189 (4) | O3—C7 | 1.432 (3) |
N—O2 | 1.209 (4) | C3—C4 | 1.368 (5) |
N—C5 | 1.466 (4) | C3—H3A | 0.9300 |
Cl1—C9 | 1.723 (3) | C4—C5 | 1.378 (4) |
C1—C2 | 1.382 (4) | C4—H4A | 0.9300 |
C1—C6 | 1.390 (4) | C5—C6 | 1.390 (4) |
C1—H1A | 0.9300 | C7—C8 | 1.481 (4) |
Cl2—C9 | 1.710 (3) | C7—H7A | 0.9700 |
C2—C3 | 1.382 (5) | C7—H7B | 0.9700 |
C2—H2A | 0.9300 | C8—C9 | 1.313 (4) |
O3—C6 | 1.352 (3) | C8—H8A | 0.9300 |
O1—N—O2 | 122.3 (3) | C4—C5—N | 118.1 (3) |
O1—N—C5 | 118.8 (3) | C6—C5—N | 119.7 (3) |
O2—N—C5 | 118.9 (3) | O3—C6—C1 | 124.7 (2) |
C2—C1—C6 | 119.7 (3) | O3—C6—C5 | 117.4 (2) |
C2—C1—H1A | 120.1 | C1—C6—C5 | 117.8 (3) |
C6—C1—H1A | 120.1 | O3—C7—C8 | 105.3 (2) |
C1—C2—C3 | 121.4 (3) | O3—C7—H7A | 110.7 |
C1—C2—H2A | 119.3 | C8—C7—H7A | 110.7 |
C3—C2—H2A | 119.3 | O3—C7—H7B | 110.7 |
C6—O3—C7 | 118.5 (2) | C8—C7—H7B | 110.7 |
C4—C3—C2 | 119.5 (3) | H7A—C7—H7B | 108.8 |
C4—C3—H3A | 120.3 | C9—C8—C7 | 125.6 (3) |
C2—C3—H3A | 120.3 | C9—C8—H8A | 117.2 |
C3—C4—C5 | 119.4 (3) | C7—C8—H8A | 117.2 |
C3—C4—H4A | 120.3 | C8—C9—Cl2 | 124.0 (2) |
C5—C4—H4A | 120.3 | C8—C9—Cl1 | 122.1 (2) |
C4—C5—C6 | 122.2 (3) | Cl2—C9—Cl1 | 113.89 (17) |
C6—C1—C2—C3 | 1.3 (5) | C2—C1—C6—O3 | 180.0 (3) |
C1—C2—C3—C4 | −0.1 (6) | C2—C1—C6—C5 | −1.3 (4) |
C2—C3—C4—C5 | −1.1 (5) | C4—C5—C6—O3 | 178.9 (3) |
C3—C4—C5—C6 | 1.1 (5) | N—C5—C6—O3 | −2.1 (4) |
C3—C4—C5—N | −177.9 (3) | C4—C5—C6—C1 | 0.1 (4) |
O1—N—C5—C4 | −50.7 (5) | N—C5—C6—C1 | 179.1 (3) |
O2—N—C5—C4 | 130.1 (4) | C6—O3—C7—C8 | 170.5 (2) |
O1—N—C5—C6 | 130.2 (4) | O3—C7—C8—C9 | 136.4 (3) |
O2—N—C5—C6 | −49.0 (5) | C7—C8—C9—Cl2 | 0.4 (5) |
C7—O3—C6—C1 | 5.5 (4) | C7—C8—C9—Cl1 | −179.8 (2) |
C7—O3—C6—C5 | −173.3 (3) |
Experimental details
Crystal data | |
Chemical formula | C9H7Cl2NO3 |
Mr | 248.06 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 4.0210 (8), 21.506 (4), 12.333 (3) |
β (°) | 96.41 (3) |
V (Å3) | 1059.8 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.60 |
Crystal size (mm) | 0.30 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.841, 0.943 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4390, 1941, 1416 |
Rint | 0.063 |
(sin θ/λ)max (Å−1) | 0.603 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.164, 1.00 |
No. of reflections | 1941 |
No. of parameters | 136 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.36, −0.29 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1985), XCAD4 (Harms & Wocadlo,1995), SHELXS97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
This study was supported financially by the Capital University of Economics and Business (00891162721716) and the Scientific Research Level Project of Beijing Education Commission Foundation. The authors thank the Center of Testing and Analysis, Nanjing University, for the data collection.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Enraf–Nonius (1985). CAD-4 Software. Enraf–Nonius, Delft, The Netherlands. Google Scholar
Harms, K. & Wocadlo, S. (1995). XCAD4. University of Marburg, Germany. Google Scholar
North, A. C. T., Phillips, D. C. & Mathews, F. S. (1968). Acta Cryst. A24, 351–359. CrossRef IUCr Journals Web of Science Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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The title compound, 1-(3,3-dichloroallyloxy)-2-nitrobenzene is an important intermediate in the synthesis of phenanthrenes (Walker et al., 2005). Here we report here the molecular and crystal structure of the title compound (Fig. 1).
There are no classic hydrogen bonds found, but a short intramolecular contact C7—H7B···Cl2 is observed (C7—H7B: 0.97 Å, H7B···Cl2: 2.700 Å, C7···Cl2: 3.139 (3) Å, C7—H7B···Cl2: 108.00).
The dihedral angle between the benzene ring (C1—C6) and the plane of the nitro group is 50.2 (1)°, and between the benzene ring and the best plane through the dichloroallyl fragment (C7—C9, Cl1, Cl2) 40.1 (1)°.
The packing is shown in Figure 2 and contains a short Cl1···Cl2 (x + 1, y, z) contact (3.6668 (16) Å).