organic compounds
1-[(6-Chloropyridin-3-yl)methyl]imidazolidin-2-one
aX-ray Crystallography Laboratory, Post-Graduate Department of Physics and Electronics, University of Jammu, Jammu Tawi 180 006, India, bDepartment of Chemistry, Shivaji University, Kolhapur 416 004, India, and cNational Research Centre for Grapes, Pune 412 307, India
*Correspondence e-mail: rkvk.paper11@gmail.com
In the title molecule, C9H10ClN3O, the dihedral angle between the pyridine ring and imidazoline ring mean plane [maximum deviation = 0.031–(3) Å] is 76.2 (1)°. In the crystal, N—H⋯O hydrogen bonds link pairs of molecules to form inversion dimers. In addition, weak C—H⋯N hydrogen bonds and π–π stacking interactions between pyridine rings [centroid–centroid distance = 3.977 (2) Å] are observed.
Related literature
For the background to the insecticidal applications of imidacloprid (N-{1-[(6-chloro-3-pyridyl)methyl]-4,5-dihydroimidazol-2-yl}nitramide), see: Samaritoni et al. (2003); Suchail et al. (2001, 2004); Schulz-Jander & Casida (2002); Kagabu et al. (2007); Pandey et al. (2009). For related structures, see: Kapoor et al. (2011, 2012); Kant et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell 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: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
10.1107/S1600536812023537/lh5478sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812023537/lh5478Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812023537/lh5478Isup3.cml
Imidacloprid (0.256 g, 0.001 mol) was dissolved in 5 ml methanol and to it 5 ml of 1 N NaOH solution was added. The reaction mixture was refluxed for about 10 hrs on a water bath at 343K and then cooled. The reaction mixture was neutralized with 1 N HCl solution. The neutralized solution was kept standing for slow evaporation until a white transparent crystalline separated out (m.p. 416 K). LC—MS/MS: 212[M+H+], 195, 169, 159, 128, 126, 99, 92 m/z.
Hydrogen atom H11 was found in a difference map and refined isotropically. All other H atoms were positioned geometrically and were treated as riding on their parent C atoms, with C—H distances of 0.93–0.97 Å and with Uiso(H) = 1.2Ueq(C).
Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell
CrysAlis PRO (Oxford Diffraction, 2010); data reduction: CrysAlis PRO (Oxford Diffraction, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2009).C9H10ClN3O | Z = 2 |
Mr = 211.65 | F(000) = 220 |
Triclinic, P1 | Dx = 1.476 Mg m−3 |
Hall symbol: -P 1 | Melting point: 416 K |
a = 5.9864 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 7.4724 (5) Å | Cell parameters from 2653 reflections |
c = 11.0235 (8) Å | θ = 3.5–28.9° |
α = 83.103 (6)° | µ = 0.37 mm−1 |
β = 80.040 (5)° | T = 293 K |
γ = 80.020 (5)° | Block, white |
V = 476.26 (5) Å3 | 0.3 × 0.2 × 0.1 mm |
Oxford Diffraction Xcalibur Sapphire3 diffractometer | 1876 independent reflections |
Radiation source: fine-focus sealed tube | 1127 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.053 |
Detector resolution: 16.1049 pixels mm-1 | θmax = 26.0°, θmin = 3.5° |
ω scans | h = −7→7 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010) | k = −9→9 |
Tmin = 0.835, Tmax = 1.000 | l = −13→13 |
6991 measured reflections |
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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.205 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.98 | w = 1/[σ2(Fo2) + (0.1095P)2] where P = (Fo2 + 2Fc2)/3 |
1876 reflections | (Δ/σ)max = 0.001 |
131 parameters | Δρmax = 0.60 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C9H10ClN3O | γ = 80.020 (5)° |
Mr = 211.65 | V = 476.26 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.9864 (3) Å | Mo Kα radiation |
b = 7.4724 (5) Å | µ = 0.37 mm−1 |
c = 11.0235 (8) Å | T = 293 K |
α = 83.103 (6)° | 0.3 × 0.2 × 0.1 mm |
β = 80.040 (5)° |
Oxford Diffraction Xcalibur Sapphire3 diffractometer | 1876 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010) | 1127 reflections with I > 2σ(I) |
Tmin = 0.835, Tmax = 1.000 | Rint = 0.053 |
6991 measured reflections |
R[F2 > 2σ(F2)] = 0.068 | 0 restraints |
wR(F2) = 0.205 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.98 | Δρmax = 0.60 e Å−3 |
1876 reflections | Δρmin = −0.26 e Å−3 |
131 parameters |
Experimental. CrysAlis PRO, Oxford Diffraction Ltd., Version 1.171.34.40 (release 27–08-2010 CrysAlis171. NET) (compiled Aug 27 2010,11:50:40) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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 | 0.4849 (2) | 0.45046 (14) | −0.23011 (9) | 0.0729 (5) | |
N1 | 0.5214 (5) | 0.2659 (4) | −0.0175 (3) | 0.0489 (8) | |
C4 | 0.0675 (6) | 0.2139 (5) | 0.0355 (4) | 0.0542 (10) | |
H4 | −0.0858 | 0.1979 | 0.0528 | 0.065* | |
C3 | 0.2141 (5) | 0.1420 (4) | 0.1179 (3) | 0.0410 (8) | |
C2 | 0.4371 (5) | 0.1719 (5) | 0.0871 (3) | 0.0432 (8) | |
H2 | 0.5374 | 0.1237 | 0.1427 | 0.052* | |
C5 | 0.1490 (6) | 0.3105 (5) | −0.0738 (3) | 0.0496 (9) | |
H5 | 0.0535 | 0.3601 | −0.1316 | 0.059* | |
C6 | 0.3766 (6) | 0.3299 (4) | −0.0931 (3) | 0.0436 (8) | |
C7 | 0.1389 (6) | 0.0288 (5) | 0.2357 (4) | 0.0528 (9) | |
H7A | 0.0729 | −0.0717 | 0.2158 | 0.063* | |
H7B | 0.2721 | −0.0224 | 0.2747 | 0.063* | |
N8 | −0.0276 (5) | 0.1334 (4) | 0.3217 (3) | 0.0539 (8) | |
C9 | 0.0273 (6) | 0.2816 (5) | 0.3778 (3) | 0.0489 (9) | |
H9A | 0.0401 | 0.3877 | 0.3185 | 0.059* | |
H9B | 0.1703 | 0.2460 | 0.4108 | 0.059* | |
C10 | −0.1757 (6) | 0.3212 (5) | 0.4818 (4) | 0.0556 (10) | |
H10A | −0.1250 | 0.3054 | 0.5619 | 0.067* | |
H10B | −0.2575 | 0.4442 | 0.4688 | 0.067* | |
N11 | −0.3167 (6) | 0.1876 (5) | 0.4724 (3) | 0.0645 (10) | |
C12 | −0.2227 (6) | 0.0748 (5) | 0.3831 (3) | 0.0456 (9) | |
O12 | −0.2977 (4) | −0.0596 (4) | 0.3591 (2) | 0.0627 (8) | |
H11 | −0.435 (8) | 0.156 (6) | 0.518 (4) | 0.091 (15)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0942 (9) | 0.0714 (8) | 0.0479 (7) | −0.0244 (6) | 0.0061 (6) | 0.0070 (5) |
N1 | 0.0365 (16) | 0.0625 (18) | 0.0457 (19) | −0.0145 (13) | 0.0013 (14) | 0.0024 (15) |
C4 | 0.0285 (17) | 0.068 (2) | 0.068 (3) | −0.0144 (16) | −0.0060 (17) | −0.005 (2) |
C3 | 0.0331 (17) | 0.0449 (17) | 0.044 (2) | −0.0102 (14) | 0.0038 (15) | −0.0095 (15) |
C2 | 0.0330 (17) | 0.056 (2) | 0.040 (2) | −0.0110 (14) | −0.0023 (15) | −0.0025 (16) |
C5 | 0.043 (2) | 0.058 (2) | 0.048 (2) | −0.0045 (16) | −0.0123 (17) | −0.0026 (18) |
C6 | 0.048 (2) | 0.0440 (18) | 0.036 (2) | −0.0116 (15) | 0.0023 (16) | −0.0025 (15) |
C7 | 0.048 (2) | 0.052 (2) | 0.053 (2) | −0.0131 (16) | 0.0096 (18) | −0.0017 (18) |
N8 | 0.0459 (16) | 0.0637 (19) | 0.051 (2) | −0.0266 (14) | 0.0192 (14) | −0.0135 (16) |
C9 | 0.051 (2) | 0.052 (2) | 0.043 (2) | −0.0176 (16) | 0.0032 (17) | −0.0041 (17) |
C10 | 0.060 (2) | 0.063 (2) | 0.040 (2) | −0.0163 (18) | 0.0084 (18) | −0.0049 (18) |
N11 | 0.054 (2) | 0.090 (2) | 0.052 (2) | −0.0363 (19) | 0.0183 (17) | −0.0188 (19) |
C12 | 0.0399 (18) | 0.064 (2) | 0.034 (2) | −0.0194 (16) | −0.0016 (15) | 0.0038 (17) |
O12 | 0.0553 (16) | 0.0826 (19) | 0.0558 (18) | −0.0392 (14) | 0.0077 (13) | −0.0107 (15) |
Cl1—C6 | 1.746 (3) | C7—H7B | 0.9700 |
N1—C6 | 1.298 (4) | N8—C12 | 1.359 (4) |
N1—C2 | 1.344 (4) | N8—C9 | 1.442 (4) |
C4—C3 | 1.371 (5) | C9—C10 | 1.534 (5) |
C4—C5 | 1.386 (5) | C9—H9A | 0.9700 |
C4—H4 | 0.9300 | C9—H9B | 0.9700 |
C3—C2 | 1.370 (4) | C10—N11 | 1.437 (5) |
C3—C7 | 1.507 (5) | C10—H10A | 0.9700 |
C2—H2 | 0.9300 | C10—H10B | 0.9700 |
C5—C6 | 1.373 (5) | N11—C12 | 1.357 (5) |
C5—H5 | 0.9300 | N11—H11 | 0.85 (4) |
C7—N8 | 1.444 (5) | C12—O12 | 1.241 (4) |
C7—H7A | 0.9700 | ||
C6—N1—C2 | 115.8 (3) | C12—N8—C9 | 111.8 (3) |
C3—C4—C5 | 119.6 (3) | C12—N8—C7 | 123.6 (3) |
C3—C4—H4 | 120.2 | C9—N8—C7 | 122.2 (3) |
C5—C4—H4 | 120.2 | N8—C9—C10 | 103.9 (3) |
C2—C3—C4 | 117.2 (3) | N8—C9—H9A | 111.0 |
C2—C3—C7 | 120.5 (3) | C10—C9—H9A | 111.0 |
C4—C3—C7 | 122.3 (3) | N8—C9—H9B | 111.0 |
N1—C2—C3 | 124.7 (3) | C10—C9—H9B | 111.0 |
N1—C2—H2 | 117.6 | H9A—C9—H9B | 109.0 |
C3—C2—H2 | 117.6 | N11—C10—C9 | 102.9 (3) |
C6—C5—C4 | 117.1 (3) | N11—C10—H10A | 111.2 |
C6—C5—H5 | 121.4 | C9—C10—H10A | 111.2 |
C4—C5—H5 | 121.4 | N11—C10—H10B | 111.2 |
N1—C6—C5 | 125.5 (3) | C9—C10—H10B | 111.2 |
N1—C6—Cl1 | 116.2 (3) | H10A—C10—H10B | 109.1 |
C5—C6—Cl1 | 118.3 (3) | C12—N11—C10 | 112.8 (3) |
N8—C7—C3 | 112.5 (3) | C12—N11—H11 | 114 (3) |
N8—C7—H7A | 109.1 | C10—N11—H11 | 133 (3) |
C3—C7—H7A | 109.1 | O12—C12—N11 | 127.2 (3) |
N8—C7—H7B | 109.1 | O12—C12—N8 | 124.5 (3) |
C3—C7—H7B | 109.1 | N11—C12—N8 | 108.3 (3) |
H7A—C7—H7B | 107.8 | ||
C5—C4—C3—C2 | 0.6 (5) | C3—C7—N8—C12 | 134.0 (3) |
C5—C4—C3—C7 | −177.3 (3) | C3—C7—N8—C9 | −64.8 (4) |
C6—N1—C2—C3 | −0.5 (5) | C12—N8—C9—C10 | −4.1 (4) |
C4—C3—C2—N1 | −0.1 (5) | C7—N8—C9—C10 | −167.3 (3) |
C7—C3—C2—N1 | 177.8 (3) | N8—C9—C10—N11 | 1.1 (4) |
C3—C4—C5—C6 | −0.4 (5) | C9—C10—N11—C12 | 2.2 (4) |
C2—N1—C6—C5 | 0.6 (5) | C10—N11—C12—O12 | 175.2 (4) |
C2—N1—C6—Cl1 | −179.4 (2) | C10—N11—C12—N8 | −4.9 (4) |
C4—C5—C6—N1 | −0.2 (5) | C9—N8—C12—O12 | −174.4 (3) |
C4—C5—C6—Cl1 | 179.8 (3) | C7—N8—C12—O12 | −11.5 (6) |
C2—C3—C7—N8 | 115.6 (3) | C9—N8—C12—N11 | 5.7 (4) |
C4—C3—C7—N8 | −66.6 (4) | C7—N8—C12—N11 | 168.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N11—H11···O12i | 0.85 (5) | 2.08 (5) | 2.924 (4) | 174 (5) |
C4—H4···N1ii | 0.93 | 2.55 | 3.369 (5) | 147 |
Symmetry codes: (i) −x−1, −y, −z+1; (ii) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C9H10ClN3O |
Mr | 211.65 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 5.9864 (3), 7.4724 (5), 11.0235 (8) |
α, β, γ (°) | 83.103 (6), 80.040 (5), 80.020 (5) |
V (Å3) | 476.26 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.37 |
Crystal size (mm) | 0.3 × 0.2 × 0.1 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Sapphire3 diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2010) |
Tmin, Tmax | 0.835, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6991, 1876, 1127 |
Rint | 0.053 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.068, 0.205, 0.98 |
No. of reflections | 1876 |
No. of parameters | 131 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.60, −0.26 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2010), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N11—H11···O12i | 0.85 (5) | 2.08 (5) | 2.924 (4) | 174 (5) |
C4—H4···N1ii | 0.93 | 2.55 | 3.369 (5) | 147 |
Symmetry codes: (i) −x−1, −y, −z+1; (ii) x−1, y, z. |
Acknowledgements
RK acknowledges the Department of Science and Technology for access to the single-crystal X-ray diffractometer sanctioned as a National Facility under project No. SR/S2/CMP-47/2003 and the University of Jammu, India, for financial support.
References
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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.
Imidacloprid is an insecticide which acts as an agonist of the acetylcholine receptor of insect nervous system. Oral, acute and chronic toxicity of imidacloprid and its main metabolite 1-[(6-chloropyridin-3-yl)methyl] imidazolidin-2-one (urea derivative) in mid-gut and rectum were investigated in Apis mellifera (Suchail et al., 2001; Suchail et al., 2004). Acute intoxication by imidacloprid or its metabolites results in rapid appearance of neurotoxicity symptoms, such as hyper-responsiveness and, hyperactivity (Suchail et al., 2001). Many metabolites of imidacloprid have been identified, but the enzymatic basis for their formation has not been reported in many cases (Schulz-Jander & Casida, 2002). Imidacloprid is degraded by liver enzymes to other nitroimines such as the corresponding guanidine and urea derivatives. The fate of imidacloprid in soil environment in terms of the metabolites toxic to vertebrates has been reported by Pandey et al. (2009). The supreme biological profile of imidacloprid is giving impulse to the development of new products by modifying the structural features of the prototype (Kagabu et al., 2007). Therefore, in a search for new neonicotinoid insecticides with improved profiles, some neonicotinoid derivatives have been designed and synthesized. The crystal structure of the title compound (I) is shown in Fig. 1.
The bond lengths and angles in (I) show normal values and are comparable with related structures (Kapoor et al., 2011,2012; Kant et al., 2012). The plane through the pyridine ring forms dihedral angle of 76.2 (1)Å with the imidazoline ring plane. In the crystal, N—H···O hydrogen bonds link pairs of molecules to form inversion dimers (Fig. 2). These dimers are linked by weak C—H···N interactions. The crystal structure is further stabilized by π–π interactions between the pyridine ring of the molecule at (x, y, z) and the pyridine ring of an inversion related molecule at (1 - x, -y, -z)[centroid separation = 3.977 (2) Å, interplanar spacing = 3.267 Å and centroid shift = 2.267 Å].