organic compounds
Methyl 4-chloro-3,5-dinitrobenzoate
aJiangsu Institute of Nuclear Medicine, Wuxi 214063, People's Republic of China
*Correspondence e-mail: liuyaling158@163.com
In the molecule of the title compound, C8H5ClN2O6, the two nitro groups and the ester group make dihedral angles of 29.6 (1)°, 82.3 (1)° and 13.7 (1)°, respectively, with the benzene ring. In the weak C—H⋯O interactions are present.
Related literature
For the use of the title compound as a herbicide, see: Akira et al. (1978); Ferenc et al. (1984).
Experimental
Crystal data
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Refinement
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Data collection: RAPID-AUTO (Rigaku 2004); cell RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536809051630/xu2697sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809051630/xu2697Isup2.hkl
A sample of commercial methyl 4-chloro-3,5-dinitrobenzoate (Aldrich) was crystalized by slow evaporation of a solution in methanol: colourless chunk-shaped crystals were formed after several days.
H atoms are positioned geometrically, with C—H = 0.95 and 0.98 Å for benzene and methyl H atoms respectively, and are allowed to ride on the C atoms to which they are bonded, with Uiso(H) = 1.5Ueq(C) for methyl H atoms and Uiso(H) = 1.2Ueq(C) fot the aromatic H atoms.
Data collection: RAPID-AUTO (Rigaku 2004); cell
RAPID-AUTO (Rigaku 2004); data reduction: RAPID-AUTO (Rigaku 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. A view of the title compound with the atomic numbering scheme. Displacement ellipsoids were drawn at the 30% probability level. |
C8H5ClN2O6 | Z = 2 |
Mr = 260.59 | F(000) = 264 |
Triclinic, P1 | Dx = 1.734 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 4.8579 (10) Å | Cell parameters from 1306 reflections |
b = 9.4438 (19) Å | θ = 3.7–27.5° |
c = 11.369 (2) Å | µ = 0.40 mm−1 |
α = 73.36 (3)° | T = 93 K |
β = 88.09 (3)° | Chunk, colorless |
γ = 87.47 (3)° | 0.50 × 0.33 × 0.17 mm |
V = 499.14 (18) Å3 |
Rigaku SPIDER diffractometer | 2193 independent reflections |
Radiation source: Rotating Anode | 1607 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ω scans | θmax = 27.5°, θmin = 3.3° |
Absorption correction: multi-scan (North et al., 1968) | h = −6→6 |
Tmin = 0.824, Tmax = 0.936 | k = −9→12 |
3935 measured reflections | l = −13→14 |
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)] = 0.047 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.142 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0772P)2] where P = (Fo2 + 2Fc2)/3 |
2193 reflections | (Δ/σ)max = 0.001 |
155 parameters | Δρmax = 0.85 e Å−3 |
0 restraints | Δρmin = −0.32 e Å−3 |
C8H5ClN2O6 | γ = 87.47 (3)° |
Mr = 260.59 | V = 499.14 (18) Å3 |
Triclinic, P1 | Z = 2 |
a = 4.8579 (10) Å | Mo Kα radiation |
b = 9.4438 (19) Å | µ = 0.40 mm−1 |
c = 11.369 (2) Å | T = 93 K |
α = 73.36 (3)° | 0.50 × 0.33 × 0.17 mm |
β = 88.09 (3)° |
Rigaku SPIDER diffractometer | 2193 independent reflections |
Absorption correction: multi-scan (North et al., 1968) | 1607 reflections with I > 2σ(I) |
Tmin = 0.824, Tmax = 0.936 | Rint = 0.029 |
3935 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.142 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.85 e Å−3 |
2193 reflections | Δρmin = −0.32 e Å−3 |
155 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 | ||
Cl1 | 1.27729 (13) | 1.05900 (7) | 0.37558 (6) | 0.0216 (2) | |
O1 | 0.9997 (5) | 0.6244 (2) | 0.56066 (17) | 0.0317 (5) | |
O2 | 1.3643 (4) | 0.7546 (2) | 0.51374 (19) | 0.0345 (5) | |
O3 | 1.1854 (4) | 1.2028 (2) | 0.07808 (17) | 0.0249 (5) | |
O4 | 0.8170 (4) | 1.2738 (2) | 0.16400 (18) | 0.0278 (5) | |
O5 | 0.4877 (4) | 0.58546 (19) | 0.21655 (17) | 0.0220 (4) | |
O6 | 0.3199 (4) | 0.79731 (19) | 0.08858 (15) | 0.0194 (4) | |
N1 | 1.1375 (5) | 0.7234 (2) | 0.4913 (2) | 0.0222 (5) | |
N2 | 0.9797 (5) | 1.1792 (2) | 0.1458 (2) | 0.0191 (5) | |
C1 | 0.8221 (5) | 0.7323 (3) | 0.3272 (2) | 0.0172 (5) | |
H1 | 0.7881 | 0.6315 | 0.3672 | 0.021* | |
C2 | 1.0070 (5) | 0.8080 (3) | 0.3755 (2) | 0.0175 (5) | |
C3 | 1.0622 (5) | 0.9551 (3) | 0.3184 (2) | 0.0164 (5) | |
C4 | 0.9246 (5) | 1.0237 (3) | 0.2102 (2) | 0.0172 (5) | |
C5 | 0.7370 (5) | 0.9523 (3) | 0.1612 (2) | 0.0171 (5) | |
H5 | 0.6432 | 1.0033 | 0.0884 | 0.021* | |
C6 | 0.6874 (5) | 0.8061 (3) | 0.2193 (2) | 0.0168 (5) | |
C7 | 0.4771 (5) | 0.7304 (3) | 0.1662 (2) | 0.0168 (5) | |
C8 | 0.2922 (6) | 0.5029 (3) | 0.1694 (3) | 0.0244 (6) | |
H8A | 0.1036 | 0.5346 | 0.1860 | 0.037* | |
H8B | 0.3196 | 0.3969 | 0.2100 | 0.037* | |
H8C | 0.3221 | 0.5219 | 0.0807 | 0.037* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0217 (4) | 0.0228 (4) | 0.0222 (4) | −0.0051 (3) | −0.0061 (3) | −0.0083 (3) |
O1 | 0.0396 (13) | 0.0269 (11) | 0.0254 (11) | −0.0063 (9) | −0.0043 (9) | −0.0013 (9) |
O2 | 0.0279 (12) | 0.0400 (13) | 0.0325 (12) | −0.0039 (10) | −0.0142 (10) | −0.0035 (10) |
O3 | 0.0229 (10) | 0.0239 (10) | 0.0253 (10) | −0.0084 (8) | 0.0037 (8) | −0.0025 (8) |
O4 | 0.0286 (11) | 0.0177 (10) | 0.0380 (12) | 0.0006 (8) | −0.0006 (9) | −0.0093 (9) |
O5 | 0.0251 (10) | 0.0143 (9) | 0.0260 (10) | −0.0062 (7) | −0.0078 (8) | −0.0035 (8) |
O6 | 0.0213 (10) | 0.0192 (9) | 0.0165 (9) | −0.0052 (7) | −0.0055 (8) | −0.0017 (8) |
N1 | 0.0279 (13) | 0.0192 (12) | 0.0189 (12) | −0.0012 (10) | −0.0085 (10) | −0.0037 (10) |
N2 | 0.0213 (12) | 0.0165 (11) | 0.0196 (11) | −0.0053 (9) | −0.0058 (9) | −0.0042 (9) |
C1 | 0.0209 (13) | 0.0150 (12) | 0.0145 (13) | −0.0007 (10) | −0.0014 (10) | −0.0020 (10) |
C2 | 0.0191 (13) | 0.0188 (13) | 0.0148 (13) | 0.0025 (10) | −0.0032 (10) | −0.0053 (10) |
C3 | 0.0145 (12) | 0.0191 (13) | 0.0174 (13) | −0.0022 (10) | −0.0033 (10) | −0.0074 (11) |
C4 | 0.0173 (13) | 0.0136 (12) | 0.0192 (13) | −0.0030 (10) | 0.0014 (10) | −0.0022 (10) |
C5 | 0.0159 (12) | 0.0168 (12) | 0.0179 (13) | −0.0018 (10) | −0.0025 (10) | −0.0035 (10) |
C6 | 0.0167 (12) | 0.0152 (12) | 0.0177 (13) | −0.0015 (10) | −0.0013 (10) | −0.0034 (10) |
C7 | 0.0166 (12) | 0.0152 (12) | 0.0167 (13) | −0.0039 (10) | 0.0009 (11) | −0.0012 (10) |
C8 | 0.0252 (15) | 0.0154 (13) | 0.0345 (16) | −0.0085 (11) | −0.0045 (12) | −0.0082 (12) |
Cl1—C3 | 1.725 (3) | C1—C6 | 1.393 (4) |
O1—N1 | 1.242 (3) | C1—H1 | 0.9500 |
O2—N1 | 1.207 (3) | C2—C3 | 1.388 (4) |
O3—N2 | 1.229 (3) | C3—C4 | 1.393 (4) |
O4—N2 | 1.224 (3) | C4—C5 | 1.377 (3) |
O5—C7 | 1.323 (3) | C5—C6 | 1.378 (3) |
O5—C8 | 1.461 (3) | C5—H5 | 0.9500 |
O6—C7 | 1.202 (3) | C6—C7 | 1.507 (3) |
N1—C2 | 1.477 (3) | C8—H8A | 0.9800 |
N2—C4 | 1.473 (3) | C8—H8B | 0.9800 |
C1—C2 | 1.390 (3) | C8—H8C | 0.9800 |
C7—O5—C8 | 115.43 (19) | C5—C4—N2 | 118.5 (2) |
O2—N1—O1 | 124.3 (2) | C3—C4—N2 | 118.8 (2) |
O2—N1—C2 | 119.4 (2) | C4—C5—C6 | 119.1 (2) |
O1—N1—C2 | 116.3 (2) | C4—C5—H5 | 120.4 |
O4—N2—O3 | 125.6 (2) | C6—C5—H5 | 120.4 |
O4—N2—C4 | 117.4 (2) | C5—C6—C1 | 120.3 (2) |
O3—N2—C4 | 117.0 (2) | C5—C6—C7 | 118.5 (2) |
C2—C1—C6 | 119.2 (2) | C1—C6—C7 | 121.1 (2) |
C2—C1—H1 | 120.4 | O6—C7—O5 | 125.7 (2) |
C6—C1—H1 | 120.4 | O6—C7—C6 | 122.5 (2) |
C3—C2—C1 | 121.6 (2) | O5—C7—C6 | 111.8 (2) |
C3—C2—N1 | 122.3 (2) | O5—C8—H8A | 109.5 |
C1—C2—N1 | 116.1 (2) | O5—C8—H8B | 109.5 |
C2—C3—C4 | 117.0 (2) | H8A—C8—H8B | 109.5 |
C2—C3—Cl1 | 124.5 (2) | O5—C8—H8C | 109.5 |
C4—C3—Cl1 | 118.43 (19) | H8A—C8—H8C | 109.5 |
C5—C4—C3 | 122.7 (2) | H8B—C8—H8C | 109.5 |
C6—C1—C2—C3 | −0.5 (4) | O3—N2—C4—C5 | −98.0 (3) |
C6—C1—C2—N1 | 178.8 (2) | O4—N2—C4—C3 | −97.7 (3) |
O2—N1—C2—C3 | −29.5 (4) | O3—N2—C4—C3 | 82.5 (3) |
O1—N1—C2—C3 | 149.4 (3) | C3—C4—C5—C6 | −1.7 (4) |
O2—N1—C2—C1 | 151.2 (3) | N2—C4—C5—C6 | 178.8 (2) |
O1—N1—C2—C1 | −29.9 (3) | C4—C5—C6—C1 | 1.0 (4) |
C1—C2—C3—C4 | −0.1 (4) | C4—C5—C6—C7 | 178.7 (2) |
N1—C2—C3—C4 | −179.4 (2) | C2—C1—C6—C5 | 0.1 (4) |
C1—C2—C3—Cl1 | 177.2 (2) | C2—C1—C6—C7 | −177.6 (2) |
N1—C2—C3—Cl1 | −2.1 (4) | C8—O5—C7—O6 | 1.4 (4) |
C2—C3—C4—C5 | 1.3 (4) | C8—O5—C7—C6 | −179.4 (2) |
Cl1—C3—C4—C5 | −176.2 (2) | C5—C6—C7—O6 | −12.6 (4) |
C2—C3—C4—N2 | −179.3 (2) | C1—C6—C7—O6 | 165.0 (2) |
Cl1—C3—C4—N2 | 3.2 (3) | C5—C6—C7—O5 | 168.2 (2) |
O4—N2—C4—C5 | 81.8 (3) | C1—C6—C7—O5 | −14.2 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···O1i | 0.95 | 2.51 | 3.329 (3) | 145 |
C5—H5···O6ii | 0.95 | 2.34 | 3.143 (3) | 142 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+2, −z. |
Experimental details
Crystal data | |
Chemical formula | C8H5ClN2O6 |
Mr | 260.59 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 93 |
a, b, c (Å) | 4.8579 (10), 9.4438 (19), 11.369 (2) |
α, β, γ (°) | 73.36 (3), 88.09 (3), 87.47 (3) |
V (Å3) | 499.14 (18) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.40 |
Crystal size (mm) | 0.50 × 0.33 × 0.17 |
Data collection | |
Diffractometer | Rigaku SPIDER diffractometer |
Absorption correction | Multi-scan (North et al., 1968) |
Tmin, Tmax | 0.824, 0.936 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3935, 2193, 1607 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.047, 0.142, 1.02 |
No. of reflections | 2193 |
No. of parameters | 155 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.85, −0.32 |
Computer programs: RAPID-AUTO (Rigaku 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···O1i | 0.95 | 2.5100 | 3.329 (3) | 145 |
C5—H5···O6ii | 0.95 | 2.3400 | 3.143 (3) | 142 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+2, −z. |
Acknowledgements
The authors acknowledge financial support from Jiangsu Institute of Nuclear Medicine, China.
References
Akira, S., Shoji, K. & Kenichi, S. (1978). Japan Patent No. 53101528 Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Ferenc, B., Gyoery, K. & Mihaly, N. (1984). German Patent No. 3410566 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
Rigaku (2004). RAPID-AUTO. Rigaku Corporation, Tokyo, Japan. 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 (Fig.1) is useful as a herbicide (Akira et al.,1978; Ferenc et al., 1984). It give good result as seed-dressing fungicide for sunflower, corn and flax. We report here the crystal structure of the title compound. Two nitro groups (O1/N1/O2 and O3/N2/O4) attached at C2 and C4, the ester group(O5/C7/O6) attached at C6 form dihedral angles of 150.4 (1)°, 97.7 (1)° and 166.3 (1)° with the mean plane of the C1-benzene ring, respectively. In the crystal structure, adjacent molecules are linked through weak C—H···O hydrogen interactions (Table 1).