organic compounds
2-Imino-3-(2-nitrophenyl)-1,3-thiazolidin-4-one
aApplied Chemistry Research Centre, PCSIR Laboratories Complex, Lahore-54600, Pakistan, bChemistry Department, Loughborough University, Loughborough LE11 3TU, England, cX-ray Diffraction and Crystallography Laboratory, Department of Physics, School of Physical Sciences, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590, Pakistan, and dThe Center of Excellence for Advanced Materials Research, King Abdul Aziz University, Jeddah, PO Box 80203, Saudi Arabia.
*Correspondence e-mail: rehman_pcsir@hotmail.com
In the title compound, C9H7N3O3S, the nitro and thiazolidinone moieties are inclined with respect to the aromatic ring at dihedral angles of 9.57 (16) and 78.42 (4)°, respectively. In the crystal, N—H⋯O hydrogen bonding connects the molecules along the c and a axes to form a two-dimensional polymeric network. A weak S⋯O interaction [3.2443 (11) Å] and phenyl ring to phenyl ring off-set π⋯π stacking [with centroid–centroid separation of 3.6890 (7) Å and ring slippage of 1.479 Å] link the polymeric chains along the b and a axes, respectively.
Related literature
For the biological activities of thiazolidinones, see: Barreca et al. (2001); Shah & Desai (2007); Mehta et al. (2006); Vazzana et al. (2004); Wrobel et al. (2006). For related structures, see: Shahwar et al. (2009, 2011); Zhou et al. (2008). For graph-set notation, see: Bernstein et al. (1995). For the comparative C—C separation in graphite, see: Trucano & Chen (1975).
Experimental
Crystal data
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Refinement
|
Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and local programs.
Supporting information
https://doi.org/10.1107/S1600536811033812/ez2256sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811033812/ez2256Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811033812/ez2256Isup3.cml
A mixture of 1-isothiocyanato-2-nitrobenzene (8.0 mmoles), dichloromethane (20 ml), and anhydrous ammonium carbonate (8.0 mmoles) was stirred at room temperature under inert atmosphere (nitrogen) for 2 h. Paraformaldehyde (4 mmoles) was added to it portion wise, and the contents were allowed to stir for 10 h; cooled to 0°C, followed by addition of 0.5 M aqueous sodium hydroxide (20 ml) over 30 minutes. The cloudy solution was heated to reflux for 2 h and the reaction mixture was neutralized with dilute hydrochloric acid. The aqueous layer was extracted with ethyl acetate (3 x 30 ml); washed with water and brine and dried over sodium sulfate. Slow evaporation of the solvent furnished pale yellow crystals.
All the CH hydrogen atoms were located via a difference map and refined with a constrained, riding model with aromatic CH = 0.95 and CH2 0.99 Å. The NH hydrogen has coordinates freely refined. Uiso(H) was set to 1.2Ueq of that of the carrier atom..
Thiazolidinones are well known
familiar for their anti-bacterial (Shah & Desai, 2007), anti-fungal (Mehta et al., 2006), anti-HIV (Barreca et al., 2001), anti-iflammatory (Vazzana et al., 2004), anti-cancer (Zhou et al., 2008) and FSH receptor agonist (Wrobel et al., 2006) activities. Herein, we report the synthesis and of a new example of this class of compound, I (Fig. 1 & Scheme).The structure of the title compound correlates with the crystal structures of other thiazolidinones (Shahwar, et al., 2009 & Shahwar, et al., 2011). The nitro group is inclined at a dihedral angle of 9.57 (16)° with respect to the phenyl ring. The thiazolidinone ring is essentially planar with an r.m.s. deviation of 0.0144 Å with the maximum deviation at the carbon atoms (C2 = 0.0196 (6) Å & C3 = -0.0193 (7) Å). The dihedral angle between the two planes C4 to C9 and N1/C3/C2/S1/C1 is 78.42 (4)°. The amino group is involved in two unique N—H···O intermolecular hydrogen bonding interactions. The first results in zigzag C(8) chains (Bernstein et al., 1995) along the c axis; the second in C(6) chains along the a axis (Table 1, Fig. 2). Weak S···O interactions link sheets together in the b direction with S1···O3 = 3.244 Å (Fig. 3). Off-set π···π stacking connects the chain along the a axis involving C5/C6/C7 with separations of ca. 3.41–3.53 Å (Figures 3 & 4). This is slightly longer than the ca 3.35 Å separation in graphite (Trucano & Chen, 1975).
For the biological activities of thiazolidinones, see: Barreca et al. (2001); Shah & Desai (2007); Mehta et al. (2006); Vazzana et al. (2004); Wrobel et al. (2006). For related structures, see: Shahwar et al. (2009, 2011); Zhou et al. (2008). For graph-set notation, see: Bernstein et al. (1995). For the comparative C—C separation in graphite, see: Trucano & Chen (1975).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and local programs.C9H7N3O3S | F(000) = 488 |
Mr = 237.24 | Dx = 1.628 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 6547 reflections |
a = 7.3036 (5) Å | θ = 2.5–30.5° |
b = 16.4409 (10) Å | µ = 0.33 mm−1 |
c = 8.2455 (5) Å | T = 150 K |
β = 102.1321 (9)° | Block, light yellow |
V = 967.99 (11) Å3 | 0.70 × 0.61 × 0.40 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 2938 independent reflections |
Radiation source: fine-focus sealed tube | 2675 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.018 |
ω rotation with narrow frames scans | θmax = 30.5°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −10→10 |
Tmin = 0.802, Tmax = 0.880 | k = −23→23 |
11000 measured reflections | l = −11→11 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: structure-invariant direct methods |
R[F2 > 2σ(F2)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.093 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0513P)2 + 0.3974P] where P = (Fo2 + 2Fc2)/3 |
2938 reflections | (Δ/σ)max = 0.001 |
148 parameters | Δρmax = 0.47 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
C9H7N3O3S | V = 967.99 (11) Å3 |
Mr = 237.24 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.3036 (5) Å | µ = 0.33 mm−1 |
b = 16.4409 (10) Å | T = 150 K |
c = 8.2455 (5) Å | 0.70 × 0.61 × 0.40 mm |
β = 102.1321 (9)° |
Bruker APEXII CCD diffractometer | 2938 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2675 reflections with I > 2σ(I) |
Tmin = 0.802, Tmax = 0.880 | Rint = 0.018 |
11000 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 0 restraints |
wR(F2) = 0.093 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.47 e Å−3 |
2938 reflections | Δρmin = −0.25 e Å−3 |
148 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 | ||
C1 | 0.43457 (15) | 0.75201 (6) | 0.52262 (14) | 0.0182 (2) | |
N1 | 0.58325 (14) | 0.79287 (6) | 0.55992 (14) | 0.0239 (2) | |
H1 | 0.686 (2) | 0.7635 (10) | 0.564 (2) | 0.029* | |
S1 | 0.40353 (4) | 0.646740 (16) | 0.48418 (4) | 0.02236 (9) | |
C2 | 0.15109 (16) | 0.65317 (6) | 0.44907 (16) | 0.0213 (2) | |
H2A | 0.0937 | 0.6319 | 0.3376 | 0.026* | |
H2B | 0.1044 | 0.6207 | 0.5330 | 0.026* | |
C3 | 0.10139 (15) | 0.74173 (6) | 0.46228 (14) | 0.0186 (2) | |
O1 | −0.05729 (12) | 0.76769 (5) | 0.43725 (12) | 0.02667 (19) | |
N2 | 0.25861 (12) | 0.78966 (5) | 0.50525 (12) | 0.01726 (18) | |
C4 | 0.24651 (14) | 0.87451 (6) | 0.53960 (13) | 0.01660 (19) | |
C5 | 0.26722 (14) | 0.93712 (6) | 0.42976 (13) | 0.01709 (19) | |
C6 | 0.25532 (15) | 1.01822 (7) | 0.47384 (14) | 0.0206 (2) | |
H6 | 0.2702 | 1.0601 | 0.3984 | 0.025* | |
C7 | 0.22162 (16) | 1.03764 (7) | 0.62847 (15) | 0.0233 (2) | |
H7 | 0.2142 | 1.0930 | 0.6595 | 0.028* | |
C8 | 0.19873 (17) | 0.97645 (7) | 0.73760 (15) | 0.0243 (2) | |
H8 | 0.1740 | 0.9899 | 0.8430 | 0.029* | |
C9 | 0.21179 (16) | 0.89517 (7) | 0.69338 (14) | 0.0215 (2) | |
H9 | 0.1968 | 0.8535 | 0.7693 | 0.026* | |
N3 | 0.30099 (14) | 0.92086 (6) | 0.26329 (12) | 0.02117 (19) | |
O2 | 0.33657 (15) | 0.85158 (5) | 0.22577 (12) | 0.0294 (2) | |
O3 | 0.29218 (19) | 0.97834 (6) | 0.16775 (13) | 0.0414 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0191 (5) | 0.0140 (4) | 0.0231 (5) | 0.0032 (4) | 0.0083 (4) | 0.0021 (4) |
N1 | 0.0180 (4) | 0.0189 (4) | 0.0361 (5) | 0.0019 (3) | 0.0085 (4) | 0.0007 (4) |
S1 | 0.02110 (15) | 0.01369 (14) | 0.03376 (17) | 0.00281 (9) | 0.00911 (11) | −0.00049 (10) |
C2 | 0.0203 (5) | 0.0130 (4) | 0.0310 (6) | 0.0007 (4) | 0.0060 (4) | −0.0002 (4) |
C3 | 0.0191 (5) | 0.0148 (4) | 0.0231 (5) | −0.0007 (4) | 0.0072 (4) | 0.0011 (4) |
O1 | 0.0182 (4) | 0.0202 (4) | 0.0424 (5) | 0.0015 (3) | 0.0081 (3) | −0.0003 (4) |
N2 | 0.0164 (4) | 0.0119 (4) | 0.0249 (4) | 0.0013 (3) | 0.0074 (3) | 0.0004 (3) |
C4 | 0.0153 (4) | 0.0125 (4) | 0.0224 (5) | 0.0018 (3) | 0.0049 (4) | 0.0003 (4) |
C5 | 0.0167 (4) | 0.0150 (4) | 0.0194 (4) | −0.0005 (3) | 0.0035 (3) | 0.0003 (4) |
C6 | 0.0212 (5) | 0.0138 (5) | 0.0256 (5) | −0.0011 (4) | 0.0020 (4) | 0.0009 (4) |
C7 | 0.0233 (5) | 0.0157 (5) | 0.0294 (6) | 0.0019 (4) | 0.0023 (4) | −0.0047 (4) |
C8 | 0.0274 (5) | 0.0219 (5) | 0.0245 (5) | 0.0043 (4) | 0.0073 (4) | −0.0043 (4) |
C9 | 0.0249 (5) | 0.0181 (5) | 0.0232 (5) | 0.0032 (4) | 0.0091 (4) | 0.0018 (4) |
N3 | 0.0243 (5) | 0.0192 (4) | 0.0201 (4) | −0.0040 (3) | 0.0049 (3) | 0.0003 (3) |
O2 | 0.0430 (5) | 0.0220 (4) | 0.0257 (4) | 0.0011 (4) | 0.0125 (4) | −0.0036 (3) |
O3 | 0.0751 (8) | 0.0249 (5) | 0.0263 (5) | −0.0035 (5) | 0.0156 (5) | 0.0074 (4) |
C1—N1 | 1.2589 (15) | C4—C5 | 1.4002 (14) |
C1—N2 | 1.4064 (13) | C5—C6 | 1.3895 (14) |
C1—S1 | 1.7655 (11) | C5—N3 | 1.4693 (14) |
N1—H1 | 0.886 (18) | C6—C7 | 1.3857 (17) |
S1—C2 | 1.8083 (12) | C6—H6 | 0.9500 |
C2—C3 | 1.5100 (14) | C7—C8 | 1.3831 (17) |
C2—H2A | 0.9900 | C7—H7 | 0.9500 |
C2—H2B | 0.9900 | C8—C9 | 1.3938 (15) |
C3—O1 | 1.2113 (14) | C8—H8 | 0.9500 |
C3—N2 | 1.3762 (14) | C9—H9 | 0.9500 |
N2—C4 | 1.4299 (13) | N3—O2 | 1.2225 (13) |
C4—C9 | 1.3866 (15) | N3—O3 | 1.2234 (13) |
N1—C1—N2 | 120.86 (10) | C5—C4—N2 | 124.72 (9) |
N1—C1—S1 | 129.69 (9) | C6—C5—C4 | 121.00 (10) |
N2—C1—S1 | 109.45 (8) | C6—C5—N3 | 116.81 (9) |
C1—N1—H1 | 113.5 (11) | C4—C5—N3 | 122.19 (9) |
C1—S1—C2 | 93.42 (5) | C7—C6—C5 | 119.65 (10) |
C3—C2—S1 | 107.29 (7) | C7—C6—H6 | 120.2 |
C3—C2—H2A | 110.3 | C5—C6—H6 | 120.2 |
S1—C2—H2A | 110.3 | C8—C7—C6 | 120.02 (10) |
C3—C2—H2B | 110.3 | C8—C7—H7 | 120.0 |
S1—C2—H2B | 110.3 | C6—C7—H7 | 120.0 |
H2A—C2—H2B | 108.5 | C7—C8—C9 | 120.19 (11) |
O1—C3—N2 | 123.96 (10) | C7—C8—H8 | 119.9 |
O1—C3—C2 | 124.29 (10) | C9—C8—H8 | 119.9 |
N2—C3—C2 | 111.75 (9) | C4—C9—C8 | 120.65 (11) |
C3—N2—C1 | 117.99 (9) | C4—C9—H9 | 119.7 |
C3—N2—C4 | 121.79 (9) | C8—C9—H9 | 119.7 |
C1—N2—C4 | 120.16 (9) | O2—N3—O3 | 122.83 (11) |
C9—C4—C5 | 118.48 (10) | O2—N3—C5 | 119.50 (9) |
C9—C4—N2 | 116.80 (9) | O3—N3—C5 | 117.68 (10) |
N1—C1—S1—C2 | 178.92 (12) | C1—N2—C4—C5 | 80.50 (14) |
N2—C1—S1—C2 | −1.26 (9) | C9—C4—C5—C6 | 0.66 (16) |
C1—S1—C2—C3 | 2.58 (9) | N2—C4—C5—C6 | −179.31 (10) |
S1—C2—C3—O1 | 176.24 (10) | C9—C4—C5—N3 | −178.92 (10) |
S1—C2—C3—N2 | −3.36 (12) | N2—C4—C5—N3 | 1.11 (16) |
O1—C3—N2—C1 | −176.90 (11) | C4—C5—C6—C7 | −0.29 (16) |
C2—C3—N2—C1 | 2.70 (14) | N3—C5—C6—C7 | 179.30 (10) |
O1—C3—N2—C4 | 6.11 (17) | C5—C6—C7—C8 | −0.45 (17) |
C2—C3—N2—C4 | −174.29 (9) | C6—C7—C8—C9 | 0.81 (18) |
N1—C1—N2—C3 | 179.21 (11) | C5—C4—C9—C8 | −0.29 (17) |
S1—C1—N2—C3 | −0.64 (12) | N2—C4—C9—C8 | 179.68 (10) |
N1—C1—N2—C4 | −3.75 (16) | C7—C8—C9—C4 | −0.44 (18) |
S1—C1—N2—C4 | 176.40 (8) | C6—C5—N3—O2 | 170.66 (11) |
C3—N2—C4—C9 | 77.45 (13) | C4—C5—N3—O2 | −9.75 (16) |
C1—N2—C4—C9 | −99.47 (12) | C6—C5—N3—O3 | −9.25 (16) |
C3—N2—C4—C5 | −102.57 (13) | C4—C5—N3—O3 | 170.35 (11) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.886 (18) | 2.334 (18) | 3.0337 (13) | 135.9 (14) |
N1—H1···O2ii | 0.886 (18) | 2.439 (17) | 3.1416 (14) | 136.5 (14) |
Symmetry codes: (i) x+1, y, z; (ii) x+1/2, −y+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C9H7N3O3S |
Mr | 237.24 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 150 |
a, b, c (Å) | 7.3036 (5), 16.4409 (10), 8.2455 (5) |
β (°) | 102.1321 (9) |
V (Å3) | 967.99 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.33 |
Crystal size (mm) | 0.70 × 0.61 × 0.40 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.802, 0.880 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11000, 2938, 2675 |
Rint | 0.018 |
(sin θ/λ)max (Å−1) | 0.715 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.093, 1.03 |
No. of reflections | 2938 |
No. of parameters | 148 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.47, −0.25 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and local programs.
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.886 (18) | 2.334 (18) | 3.0337 (13) | 135.9 (14) |
N1—H1···O2ii | 0.886 (18) | 2.439 (17) | 3.1416 (14) | 136.5 (14) |
Symmetry codes: (i) x+1, y, z; (ii) x+1/2, −y+3/2, z+1/2. |
Acknowledgements
The authors are grateful to the PCSIR Laboratories Complex, Lahore, and the Chemistry Department, Loughborough University, for the provision of chemicals and X-ray facilities.
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.
Thiazolidinones are well known heterocyclic compounds, familiar for their anti-bacterial (Shah & Desai, 2007), anti-fungal (Mehta et al., 2006), anti-HIV (Barreca et al., 2001), anti-iflammatory (Vazzana et al., 2004), anti-cancer (Zhou et al., 2008) and FSH receptor agonist (Wrobel et al., 2006) activities. Herein, we report the synthesis and crystal structure of a new example of this class of compound, I (Fig. 1 & Scheme).
The structure of the title compound correlates with the crystal structures of other thiazolidinones (Shahwar, et al., 2009 & Shahwar, et al., 2011). The nitro group is inclined at a dihedral angle of 9.57 (16)° with respect to the phenyl ring. The thiazolidinone ring is essentially planar with an r.m.s. deviation of 0.0144 Å with the maximum deviation at the carbon atoms (C2 = 0.0196 (6) Å & C3 = -0.0193 (7) Å). The dihedral angle between the two planes C4 to C9 and N1/C3/C2/S1/C1 is 78.42 (4)°. The amino group is involved in two unique N—H···O intermolecular hydrogen bonding interactions. The first results in zigzag C(8) chains (Bernstein et al., 1995) along the c axis; the second in C(6) chains along the a axis (Table 1, Fig. 2). Weak S···O interactions link sheets together in the b direction with S1···O3 = 3.244 Å (Fig. 3). Off-set π···π stacking connects the chain along the a axis involving C5/C6/C7 with separations of ca. 3.41–3.53 Å (Figures 3 & 4). This is slightly longer than the ca 3.35 Å separation in graphite (Trucano & Chen, 1975).