organic compounds
(E)-N-(6-Chloro-3-pyridylmethyl)-N-ethyl-N′-methyl-2-nitroethylene-1,1-diamine
aCollege of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
*Correspondence e-mail: qknhs@yahoo.com.cn
In the title compound, C11H15ClN4O2, the amino group is involved in intra- and intermolecular N—H⋯O hydrogen bonds. The former contributes to the molecular conformation, while the latter link the molecules into centrosymmetric dimers. The also exhibits weak intermolecular C—H⋯O interactions.
Related literature
For the properties of neonicotinoid insecticides, see: Wang et al. (2001); Isao et al. (1993). For related crystal structures, see: Jiang et al. (2007); Xia et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808013317/cv2407sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808013317/cv2407Isup2.hkl
A solution comprising N-((6-chloropyridin-3-yl)methyl)ethanamine(0.1 mol) in trichloromethane(30 ml) was slowly added from a dropping-funnel to a mixture of 1,1,1-trichloro-2-nitro-ethane(0.15 mol), trichloromethane(30 ml) and an aqueous solution of sodium carbonate(40%, 53 g) in a flask equipped with stirrer and reflux condenser. After the mixture was stirred for 1 h while maintaining the temperature at 273–280k, an aqueous solution of methylamine(30%, 30 g) was then added dropwise, followed by a two hours stirring at room temperature. The reaction mixture were extracted with trichloromethane, the title compound (16.2 g, yield 60%) could be afforded after ethyl oxide was added to the concentration remnants on cooling. The single-crystal suitable for X-ray measurements was obtained by recrystallization from trichloromethane-ethyl acetate(1:1) at room temperature.
H atoms were positioned geometrically and allowed to ride on their parent atoms, with N—H and C—H distances of 0.86 and 0.93–0.97 Å, respectively, and with Uiso(H) = 1.2Ueq(C, N) for the aryl, methylene and N H atoms and 1.5Ueq(C) for the methyl H atoms.
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound with the atom-labeling scheme. Displacement ellipsoids are drawn at the 40% probability level. |
C11H15ClN4O2 | F(000) = 568 |
Mr = 270.72 | Dx = 1.414 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3653 reflections |
a = 7.7252 (15) Å | θ = 2.0–27.9° |
b = 7.9281 (16) Å | µ = 0.30 mm−1 |
c = 20.787 (4) Å | T = 113 K |
β = 92.34 (3)° | Block, yellow |
V = 1272.0 (4) Å3 | 0.14 × 0.12 × 0.04 mm |
Z = 4 |
Rigaku Saturn diffractometer | 2238 independent reflections |
Radiation source: rotating anode | 1970 reflections with I > 2σ(I) |
Confocal monochromator | Rint = 0.031 |
ω scans | θmax = 25.0°, θmin = 2.8° |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | h = −9→5 |
Tmin = 0.959, Tmax = 0.988 | k = −8→9 |
7120 measured reflections | l = −24→23 |
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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.053P)2 + 0.2942P] where P = (Fo2 + 2Fc2)/3 |
2238 reflections | (Δ/σ)max < 0.001 |
165 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C11H15ClN4O2 | V = 1272.0 (4) Å3 |
Mr = 270.72 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.7252 (15) Å | µ = 0.30 mm−1 |
b = 7.9281 (16) Å | T = 113 K |
c = 20.787 (4) Å | 0.14 × 0.12 × 0.04 mm |
β = 92.34 (3)° |
Rigaku Saturn diffractometer | 2238 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 1970 reflections with I > 2σ(I) |
Tmin = 0.959, Tmax = 0.988 | Rint = 0.031 |
7120 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 0 restraints |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.33 e Å−3 |
2238 reflections | Δρmin = −0.34 e Å−3 |
165 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 | −0.46834 (6) | 0.13093 (5) | 0.15973 (2) | 0.03277 (16) | |
O1 | 0.31814 (14) | 1.08651 (13) | −0.00180 (6) | 0.0256 (3) | |
O2 | 0.11880 (15) | 1.26510 (13) | 0.02461 (6) | 0.0297 (3) | |
N1 | −0.37165 (16) | 0.43140 (16) | 0.19759 (6) | 0.0218 (3) | |
N2 | 0.10858 (15) | 0.74385 (14) | 0.12607 (6) | 0.0154 (3) | |
N3 | 0.34655 (15) | 0.80473 (14) | 0.06527 (6) | 0.0164 (3) | |
H3A | 0.4171 | 0.8837 | 0.0555 | 0.020* | |
N4 | 0.19059 (16) | 1.12460 (14) | 0.03211 (6) | 0.0187 (3) | |
C1 | −0.34845 (19) | 0.31625 (19) | 0.15333 (7) | 0.0194 (3) | |
C2 | −0.23838 (19) | 0.33022 (19) | 0.10271 (8) | 0.0193 (3) | |
H2 | −0.2261 | 0.2429 | 0.0734 | 0.023* | |
C3 | −0.14779 (18) | 0.47891 (18) | 0.09762 (7) | 0.0183 (3) | |
H3 | −0.0727 | 0.4941 | 0.0642 | 0.022* | |
C4 | −0.16921 (18) | 0.60648 (17) | 0.14276 (7) | 0.0157 (3) | |
C5 | −0.28034 (19) | 0.57502 (19) | 0.19164 (7) | 0.0193 (3) | |
H5 | −0.2931 | 0.6584 | 0.2225 | 0.023* | |
C6 | −0.07572 (18) | 0.77266 (17) | 0.13772 (7) | 0.0170 (3) | |
H6A | −0.1280 | 0.8384 | 0.1027 | 0.020* | |
H6B | −0.0863 | 0.8360 | 0.1773 | 0.020* | |
C7 | 0.20362 (19) | 0.64947 (18) | 0.17777 (7) | 0.0177 (3) | |
H7A | 0.2889 | 0.5772 | 0.1586 | 0.021* | |
H7B | 0.1228 | 0.5777 | 0.1996 | 0.021* | |
C8 | 0.2939 (2) | 0.7633 (2) | 0.22653 (9) | 0.0301 (4) | |
H8A | 0.3829 | 0.8259 | 0.2062 | 0.045* | |
H8B | 0.3449 | 0.6965 | 0.2608 | 0.045* | |
H8C | 0.2115 | 0.8402 | 0.2436 | 0.045* | |
C9 | 0.19636 (18) | 0.85310 (17) | 0.08850 (7) | 0.0142 (3) | |
C10 | 0.4040 (2) | 0.63299 (18) | 0.05466 (8) | 0.0206 (3) | |
H10A | 0.4731 | 0.5955 | 0.0913 | 0.031* | |
H10B | 0.4718 | 0.6292 | 0.0170 | 0.031* | |
H10C | 0.3050 | 0.5607 | 0.0486 | 0.031* | |
C11 | 0.12900 (18) | 1.01529 (17) | 0.07620 (7) | 0.0169 (3) | |
H11 | 0.0359 | 1.0503 | 0.0999 | 0.020* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0374 (3) | 0.0288 (2) | 0.0319 (3) | −0.01993 (18) | 0.00009 (19) | 0.00218 (17) |
O1 | 0.0213 (6) | 0.0257 (6) | 0.0307 (7) | 0.0037 (5) | 0.0121 (5) | 0.0098 (5) |
O2 | 0.0367 (7) | 0.0148 (5) | 0.0384 (8) | 0.0088 (5) | 0.0118 (6) | 0.0096 (5) |
N1 | 0.0195 (6) | 0.0264 (7) | 0.0195 (7) | −0.0078 (6) | 0.0008 (5) | 0.0030 (6) |
N2 | 0.0126 (6) | 0.0143 (6) | 0.0191 (7) | 0.0006 (5) | 0.0006 (5) | 0.0041 (5) |
N3 | 0.0137 (6) | 0.0119 (6) | 0.0241 (7) | −0.0011 (5) | 0.0041 (5) | 0.0007 (5) |
N4 | 0.0191 (7) | 0.0145 (6) | 0.0226 (7) | 0.0014 (5) | 0.0033 (5) | 0.0023 (5) |
C1 | 0.0171 (7) | 0.0202 (7) | 0.0203 (8) | −0.0049 (6) | −0.0052 (6) | 0.0054 (6) |
C2 | 0.0197 (7) | 0.0172 (7) | 0.0208 (8) | 0.0025 (6) | −0.0012 (6) | 0.0005 (6) |
C3 | 0.0149 (7) | 0.0202 (8) | 0.0199 (8) | 0.0017 (6) | 0.0028 (6) | 0.0032 (6) |
C4 | 0.0115 (7) | 0.0170 (7) | 0.0183 (8) | 0.0018 (6) | −0.0023 (6) | 0.0040 (6) |
C5 | 0.0179 (7) | 0.0218 (7) | 0.0181 (8) | −0.0025 (6) | 0.0003 (6) | −0.0006 (6) |
C6 | 0.0147 (7) | 0.0154 (7) | 0.0211 (8) | 0.0012 (6) | 0.0033 (6) | 0.0022 (6) |
C7 | 0.0171 (7) | 0.0176 (7) | 0.0183 (8) | 0.0002 (6) | −0.0006 (6) | 0.0053 (6) |
C8 | 0.0348 (9) | 0.0279 (9) | 0.0267 (10) | −0.0077 (7) | −0.0094 (7) | 0.0053 (7) |
C9 | 0.0141 (7) | 0.0134 (7) | 0.0148 (8) | −0.0016 (6) | −0.0018 (6) | −0.0010 (5) |
C10 | 0.0200 (8) | 0.0165 (7) | 0.0252 (9) | 0.0052 (6) | 0.0026 (7) | −0.0012 (6) |
C11 | 0.0163 (7) | 0.0150 (7) | 0.0197 (8) | 0.0005 (6) | 0.0056 (6) | 0.0008 (6) |
Cl1—C1 | 1.7447 (15) | C4—C5 | 1.379 (2) |
O1—N4 | 1.2711 (16) | C4—C6 | 1.508 (2) |
O2—N4 | 1.2512 (16) | C5—H5 | 0.9300 |
N1—C1 | 1.314 (2) | C6—H6A | 0.9700 |
N1—C5 | 1.3478 (19) | C6—H6B | 0.9700 |
N2—C9 | 1.3650 (18) | C7—C8 | 1.507 (2) |
N2—C6 | 1.4717 (17) | C7—H7A | 0.9700 |
N2—C7 | 1.4796 (19) | C7—H7B | 0.9700 |
N3—C9 | 1.3313 (18) | C8—H8A | 0.9600 |
N3—C10 | 1.4517 (18) | C8—H8B | 0.9600 |
N3—H3A | 0.8600 | C8—H8C | 0.9600 |
N4—C11 | 1.3613 (18) | C9—C11 | 1.4066 (19) |
C1—C2 | 1.384 (2) | C10—H10A | 0.9600 |
C2—C3 | 1.377 (2) | C10—H10B | 0.9600 |
C2—H2 | 0.9300 | C10—H10C | 0.9600 |
C3—C4 | 1.394 (2) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | ||
C1—N1—C5 | 115.85 (13) | N2—C6—H6B | 109.6 |
C9—N2—C6 | 120.14 (12) | C4—C6—H6B | 109.6 |
C9—N2—C7 | 119.54 (12) | H6A—C6—H6B | 108.1 |
C6—N2—C7 | 114.44 (11) | N2—C7—C8 | 112.82 (12) |
C9—N3—C10 | 126.98 (12) | N2—C7—H7A | 109.0 |
C9—N3—H3A | 116.5 | C8—C7—H7A | 109.0 |
C10—N3—H3A | 116.5 | N2—C7—H7B | 109.0 |
O2—N4—O1 | 119.49 (12) | C8—C7—H7B | 109.0 |
O2—N4—C11 | 119.03 (12) | H7A—C7—H7B | 107.8 |
O1—N4—C11 | 121.48 (12) | C7—C8—H8A | 109.5 |
N1—C1—C2 | 125.63 (13) | C7—C8—H8B | 109.5 |
N1—C1—Cl1 | 116.35 (11) | H8A—C8—H8B | 109.5 |
C2—C1—Cl1 | 118.03 (12) | C7—C8—H8C | 109.5 |
C3—C2—C1 | 117.18 (14) | H8A—C8—H8C | 109.5 |
C3—C2—H2 | 121.4 | H8B—C8—H8C | 109.5 |
C1—C2—H2 | 121.4 | N3—C9—N2 | 119.04 (12) |
C2—C3—C4 | 119.65 (14) | N3—C9—C11 | 121.26 (13) |
C2—C3—H3 | 120.2 | N2—C9—C11 | 119.69 (12) |
C4—C3—H3 | 120.2 | N3—C10—H10A | 109.5 |
C5—C4—C3 | 117.33 (13) | N3—C10—H10B | 109.5 |
C5—C4—C6 | 121.56 (13) | H10A—C10—H10B | 109.5 |
C3—C4—C6 | 121.10 (13) | N3—C10—H10C | 109.5 |
N1—C5—C4 | 124.34 (14) | H10A—C10—H10C | 109.5 |
N1—C5—H5 | 117.8 | H10B—C10—H10C | 109.5 |
C4—C5—H5 | 117.8 | N4—C11—C9 | 124.57 (13) |
N2—C6—C4 | 110.19 (11) | N4—C11—H11 | 117.7 |
N2—C6—H6A | 109.6 | C9—C11—H11 | 117.7 |
C4—C6—H6A | 109.6 | ||
C5—N1—C1—C2 | 0.8 (2) | C3—C4—C6—N2 | −47.41 (19) |
C5—N1—C1—Cl1 | −179.06 (11) | C9—N2—C7—C8 | 58.95 (17) |
N1—C1—C2—C3 | −1.3 (2) | C6—N2—C7—C8 | −94.11 (15) |
Cl1—C1—C2—C3 | 178.57 (11) | C10—N3—C9—N2 | 23.9 (2) |
C1—C2—C3—C4 | 0.3 (2) | C10—N3—C9—C11 | −157.47 (15) |
C2—C3—C4—C5 | 1.0 (2) | C6—N2—C9—N3 | −163.24 (13) |
C2—C3—C4—C6 | −178.39 (13) | C7—N2—C9—N3 | 45.24 (19) |
C1—N1—C5—C4 | 0.7 (2) | C6—N2—C9—C11 | 18.2 (2) |
C3—C4—C5—N1 | −1.6 (2) | C7—N2—C9—C11 | −133.36 (14) |
C6—C4—C5—N1 | 177.82 (13) | O2—N4—C11—C9 | 179.01 (14) |
C9—N2—C6—C4 | 145.80 (13) | O1—N4—C11—C9 | −0.4 (2) |
C7—N2—C6—C4 | −61.31 (16) | N3—C9—C11—N4 | 11.8 (2) |
C5—C4—C6—N2 | 133.23 (14) | N2—C9—C11—N4 | −169.61 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.86 | 2.12 | 2.6376 (16) | 118 |
N3—H3A···O1i | 0.86 | 2.38 | 3.0778 (17) | 138 |
C6—H6A···O1ii | 0.97 | 2.58 | 3.508 (2) | 160 |
C3—H3···O2iii | 0.93 | 2.50 | 3.1101 (19) | 123 |
Symmetry codes: (i) −x+1, −y+2, −z; (ii) −x, −y+2, −z; (iii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C11H15ClN4O2 |
Mr | 270.72 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 113 |
a, b, c (Å) | 7.7252 (15), 7.9281 (16), 20.787 (4) |
β (°) | 92.34 (3) |
V (Å3) | 1272.0 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.30 |
Crystal size (mm) | 0.14 × 0.12 × 0.04 |
Data collection | |
Diffractometer | Rigaku Saturn diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.959, 0.988 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7120, 2238, 1970 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.089, 1.05 |
No. of reflections | 2238 |
No. of parameters | 165 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.33, −0.34 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.86 | 2.12 | 2.6376 (16) | 117.8 |
N3—H3A···O1i | 0.86 | 2.38 | 3.0778 (17) | 138.4 |
C6—H6A···O1ii | 0.97 | 2.58 | 3.508 (2) | 160.0 |
C3—H3···O2iii | 0.93 | 2.50 | 3.1101 (19) | 123.1 |
Symmetry codes: (i) −x+1, −y+2, −z; (ii) −x, −y+2, −z; (iii) x, y−1, z. |
References
Isao, M., Koichi, I. & Takanori, T. (1993). J. Pesticide Sci. 18, 41–48. Google Scholar
Jiang, H., Yu, C.-X., Tu, S.-J., Wang, X.-S. & Yao, C.-S. (2007). Acta Cryst. E63, o298–o299. Web of Science CSD CrossRef IUCr Journals Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wang, J. J., Han, Z. J. & Wang, Y. C. (2001). Zhiwu Baohu Xuebao, 28, 178–182. CAS Google Scholar
Xia, Y., Ding, X.-L., Ge, Y.-Q., Liu, L.-D. & Zhao, B.-X. (2007). Acta Cryst. E63, o394–o395. Web of Science CSD CrossRef IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Nitenpyram is a new chloro-nicotine type insecticide (Wang et al., 2001) possessing a wide spectum of useful properties (Isao et al., 1993). We report here the crystal structure of the title compound (I).
In (I) (Fig. 1), all bond lengths and angles are in agreement with those reported for the related structures (Jiang et al., 2007; Xia et al., 2007). The pyridine ring and plane N2/N3/C9/C11 form a dihedral angle of 48.8 (2)°. The amino group is involved in intra- and intermolecular N-H···O hydrogen bonds (Table 1). The intermolecular N-H···O hydrogen bonds link the molecules into centrosymmetric dimers. The crystal packing exhibits also weak intermolecular C—H···O interactions (Table 1).