organic compounds
N-(3-Chlorophenyl)-1,2-benzisothiazol-3-amine 1,1-dioxide
aDepartment of Chemistry, University of Sargodha, Sargodha, Pakistan, and bDepartment of Physics, University of Sargodha, Sargodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
In the title compound, C13H9ClN2O2S, the dihedral angle between the aromatic ring systems is 6.00 (12)° and an intramolecular C—H⋯N interaction generates an S(6) ring. In the crystal, molecules interact by way of C—H⋯O and N—H⋯O bonds, generating R21(7) and R22(10) ring motifs, and aromatic π–π stacking interactions [centroid–centroid separations = 3.730 (3) and 3.733 (2) Å] help to consolidate the packing.
Related literature
For other saccharin derivatives, see: Rafique et al. (2009); Siddiqui et al. (2010). For a related structure, see: Brigas et al. (2001). For graph-set theory, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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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: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
https://doi.org/10.1107/S1600536810015163/hb5389sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810015163/hb5389Isup2.hkl
A mixture of saccharin (1.0 g, 5.46 mmol) and m-chloroaniline (5 ml, in excess) was heated to reflux on an oil-bath (4 h), cooled to room temperature and kept overnight in a freezer. The solvent was evaporated under reduced pressure and the brownish yellow paste obtained was washed with benzene (4 × 25 ml) to obtain the bright light brown crystalline product (1.25, 78%, m. p. 578-579 K). Recrystallisation solvent: MeOH:AcOEt (1:1): the solution was subjected to slow evaporation at room temperature to obtain colourless needles of (I).
The H-atoms were positioned geometrically (C–H = 0.93, N–H = 0.86 Å) and refined as riding with Uiso(H) = 1.2Ueq(C, N).
Due to the interest in obtaining new derivatives of saccharin (Rafique et al., 2009: Siddiqui et al., 2010), we wish to report the preparation and
of the title compound (I, Fig. 1).The π–π interactions at a distance of 3.733 (2) Å and 3.730 (2) Å, between the centroids of the benzene rings Cg1 (C1—C6) and Cg2 (C8—C13) respectively, [Cg1···Cg1i: i = 2 - x,-y, 1 - z] and [Cg2···Cg2ii: ii = 1 - x,-y, - z].
of (II) N-(1,1-Dioxo-1,2-benzisothiazol-3-yl)-4- methoxyaniline (Brigas et al., 2001) and (III) N-(1,1-Dioxo-1,2-benzisothiazol-3-yl)-3-methylaniline (Brigas et al., 2001) have been published. The title compound differs from (II) and (III) due to attachement of chloro substition on the aniline. In (I), 1,2-benzisothiazol-3-amine A (C–C7/N2/S1) and 3-Chlorophenyl B (C8–C13/CL1) are planar with maximum r. m. s. deviations of 0.0080 Å and 0.0033 Å from the respective mean square planes. The dihedral angle between A/B is 6.00 (12)°. There exists an intramolecular H-bonding of C–H···N type forming S(6) ring motif (Bernstein et al., 1995). The molecules are stabilized in the form of polymeric sheets due to intermolecular H-bondings (Table 1, Fig. 2) completing R21(7) and R22(10) ring motifs. There existFor other saccharin derivatives, see: Rafique et al. (2009); Siddiqui et al. (2010). For a related structure, see: Brigas et al. (2001). For graph-set theory, see: Bernstein et al. (1995);
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: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. View of (I) with displacement ellipsoids drawn at the 50% probability level. | |
Fig. 2. The partial packing of (I), which shows that molecules form polymeric sheets with various ring motifs. |
C13H9ClN2O2S | Z = 2 |
Mr = 292.73 | F(000) = 300 |
Triclinic, P1 | Dx = 1.561 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.2223 (10) Å | Cell parameters from 1244 reflections |
b = 7.9138 (12) Å | θ = 2.6–27.1° |
c = 11.2175 (17) Å | µ = 0.47 mm−1 |
α = 96.178 (6)° | T = 296 K |
β = 98.840 (5)° | Needle, colourless |
γ = 97.574 (5)° | 0.28 × 0.10 × 0.08 mm |
V = 622.63 (16) Å3 |
Bruker Kappa APEXII CCD diffractometer | 2700 independent reflections |
Radiation source: fine-focus sealed tube | 1244 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.088 |
Detector resolution: 7.60 pixels mm-1 | θmax = 27.1°, θmin = 2.6° |
ω scans | h = −8→9 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −10→10 |
Tmin = 0.947, Tmax = 0.962 | l = −14→14 |
10481 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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 0.98 | w = 1/[σ2(Fo2) + (0.0363P)2] where P = (Fo2 + 2Fc2)/3 |
2700 reflections | (Δ/σ)max < 0.001 |
172 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C13H9ClN2O2S | γ = 97.574 (5)° |
Mr = 292.73 | V = 622.63 (16) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.2223 (10) Å | Mo Kα radiation |
b = 7.9138 (12) Å | µ = 0.47 mm−1 |
c = 11.2175 (17) Å | T = 296 K |
α = 96.178 (6)° | 0.28 × 0.10 × 0.08 mm |
β = 98.840 (5)° |
Bruker Kappa APEXII CCD diffractometer | 2700 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 1244 reflections with I > 2σ(I) |
Tmin = 0.947, Tmax = 0.962 | Rint = 0.088 |
10481 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 0 restraints |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 0.98 | Δρmax = 0.25 e Å−3 |
2700 reflections | Δρmin = −0.26 e Å−3 |
172 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | 1.1663 (5) | 0.2836 (4) | 0.4969 (3) | 0.0380 (9) | |
C2 | 1.2431 (5) | 0.3741 (5) | 0.6082 (3) | 0.0512 (11) | |
H2 | 1.3719 | 0.4162 | 0.6278 | 0.061* | |
C3 | 1.1225 (6) | 0.4010 (5) | 0.6905 (3) | 0.0566 (12) | |
H3 | 1.1705 | 0.4625 | 0.7668 | 0.068* | |
C4 | 0.9329 (6) | 0.3379 (5) | 0.6609 (4) | 0.0557 (11) | |
H4 | 0.8542 | 0.3572 | 0.7177 | 0.067* | |
C5 | 0.8563 (5) | 0.2460 (5) | 0.5481 (3) | 0.0466 (10) | |
H5 | 0.7275 | 0.2038 | 0.5289 | 0.056* | |
C6 | 0.9745 (5) | 0.2185 (4) | 0.4651 (3) | 0.0352 (9) | |
C7 | 0.9368 (5) | 0.1246 (4) | 0.3407 (3) | 0.0374 (9) | |
C8 | 0.6944 (4) | −0.0592 (4) | 0.1789 (3) | 0.0361 (9) | |
C9 | 0.5043 (5) | −0.1312 (5) | 0.1558 (3) | 0.0426 (10) | |
H9 | 0.4257 | −0.1074 | 0.2119 | 0.051* | |
C10 | 0.4338 (5) | −0.2380 (5) | 0.0491 (3) | 0.0415 (10) | |
C11 | 0.5448 (5) | −0.2769 (5) | −0.0357 (3) | 0.0482 (10) | |
H11 | 0.4944 | −0.3497 | −0.1073 | 0.058* | |
C12 | 0.7330 (5) | −0.2050 (5) | −0.0116 (3) | 0.0485 (11) | |
H12 | 0.8109 | −0.2302 | −0.0677 | 0.058* | |
C13 | 0.8080 (5) | −0.0967 (5) | 0.0939 (3) | 0.0457 (10) | |
H13 | 0.9353 | −0.0485 | 0.1081 | 0.055* | |
Cl1 | 0.19425 (13) | −0.32624 (14) | 0.02129 (9) | 0.0658 (4) | |
N1 | 0.7608 (4) | 0.0472 (4) | 0.2912 (3) | 0.0417 (8) | |
H1 | 0.6751 | 0.0650 | 0.3345 | 0.050* | |
N2 | 1.0821 (4) | 0.1190 (4) | 0.2841 (3) | 0.0428 (8) | |
O1 | 1.4055 (3) | 0.1090 (3) | 0.4010 (2) | 0.0619 (8) | |
O2 | 1.3450 (4) | 0.3710 (3) | 0.3184 (2) | 0.0645 (8) | |
S1 | 1.27387 (13) | 0.22471 (14) | 0.37119 (9) | 0.0481 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.029 (2) | 0.039 (2) | 0.041 (2) | −0.0055 (17) | 0.0023 (17) | 0.0026 (19) |
C2 | 0.044 (2) | 0.052 (3) | 0.047 (3) | −0.011 (2) | −0.003 (2) | −0.001 (2) |
C3 | 0.062 (3) | 0.062 (3) | 0.039 (3) | −0.004 (2) | 0.002 (2) | −0.002 (2) |
C4 | 0.056 (3) | 0.063 (3) | 0.045 (3) | −0.001 (2) | 0.013 (2) | −0.001 (2) |
C5 | 0.036 (2) | 0.059 (3) | 0.041 (2) | −0.0003 (19) | 0.0038 (19) | 0.002 (2) |
C6 | 0.033 (2) | 0.039 (2) | 0.033 (2) | 0.0038 (17) | 0.0032 (17) | 0.0035 (19) |
C7 | 0.028 (2) | 0.037 (2) | 0.043 (2) | −0.0002 (17) | 0.0007 (17) | 0.0000 (19) |
C8 | 0.028 (2) | 0.040 (2) | 0.036 (2) | 0.0022 (17) | 0.0018 (17) | −0.0021 (19) |
C9 | 0.030 (2) | 0.048 (3) | 0.047 (3) | −0.0001 (18) | 0.0107 (18) | −0.005 (2) |
C10 | 0.027 (2) | 0.042 (3) | 0.049 (3) | −0.0019 (17) | 0.0015 (18) | −0.005 (2) |
C11 | 0.040 (2) | 0.054 (3) | 0.044 (2) | −0.0013 (19) | 0.0037 (19) | −0.010 (2) |
C12 | 0.036 (2) | 0.064 (3) | 0.042 (2) | 0.002 (2) | 0.0083 (19) | −0.007 (2) |
C13 | 0.024 (2) | 0.065 (3) | 0.044 (2) | 0.0020 (18) | 0.0045 (18) | 0.001 (2) |
Cl1 | 0.0325 (6) | 0.0807 (9) | 0.0706 (8) | −0.0122 (5) | 0.0055 (5) | −0.0205 (6) |
N1 | 0.0249 (16) | 0.054 (2) | 0.0411 (19) | −0.0042 (14) | 0.0069 (14) | −0.0036 (16) |
N2 | 0.0248 (16) | 0.057 (2) | 0.0421 (19) | −0.0024 (14) | 0.0065 (14) | −0.0062 (16) |
O1 | 0.0289 (15) | 0.077 (2) | 0.073 (2) | 0.0088 (14) | 0.0005 (13) | −0.0092 (17) |
O2 | 0.0539 (18) | 0.070 (2) | 0.0632 (19) | −0.0227 (15) | 0.0210 (15) | 0.0020 (16) |
S1 | 0.0261 (5) | 0.0609 (8) | 0.0494 (7) | −0.0073 (5) | 0.0045 (5) | −0.0087 (6) |
C1—C2 | 1.367 (5) | C8—C9 | 1.389 (4) |
C1—C6 | 1.390 (4) | C8—N1 | 1.417 (4) |
C1—S1 | 1.760 (4) | C9—C10 | 1.374 (5) |
C2—C3 | 1.382 (5) | C9—H9 | 0.9300 |
C2—H2 | 0.9300 | C10—C11 | 1.370 (5) |
C3—C4 | 1.371 (5) | C10—Cl1 | 1.746 (3) |
C3—H3 | 0.9300 | C11—C12 | 1.376 (4) |
C4—C5 | 1.384 (5) | C11—H11 | 0.9300 |
C4—H4 | 0.9300 | C12—C13 | 1.375 (5) |
C5—C6 | 1.376 (4) | C12—H12 | 0.9300 |
C5—H5 | 0.9300 | C13—H13 | 0.9300 |
C6—C7 | 1.477 (5) | N1—H1 | 0.8600 |
C7—N2 | 1.310 (4) | N2—S1 | 1.635 (3) |
C7—N1 | 1.343 (4) | O1—S1 | 1.432 (3) |
C8—C13 | 1.384 (4) | O2—S1 | 1.428 (3) |
C2—C1—C6 | 122.5 (3) | C10—C9—H9 | 120.4 |
C2—C1—S1 | 130.4 (3) | C8—C9—H9 | 120.4 |
C6—C1—S1 | 107.1 (3) | C11—C10—C9 | 122.3 (3) |
C1—C2—C3 | 117.7 (4) | C11—C10—Cl1 | 119.2 (3) |
C1—C2—H2 | 121.2 | C9—C10—Cl1 | 118.5 (3) |
C3—C2—H2 | 121.2 | C10—C11—C12 | 118.0 (3) |
C4—C3—C2 | 120.7 (4) | C10—C11—H11 | 121.0 |
C4—C3—H3 | 119.6 | C12—C11—H11 | 121.0 |
C2—C3—H3 | 119.6 | C13—C12—C11 | 121.3 (3) |
C3—C4—C5 | 121.3 (4) | C13—C12—H12 | 119.3 |
C3—C4—H4 | 119.4 | C11—C12—H12 | 119.3 |
C5—C4—H4 | 119.4 | C12—C13—C8 | 120.0 (3) |
C6—C5—C4 | 118.7 (4) | C12—C13—H13 | 120.0 |
C6—C5—H5 | 120.7 | C8—C13—H13 | 120.0 |
C4—C5—H5 | 120.7 | C7—N1—C8 | 130.1 (3) |
C5—C6—C1 | 119.2 (3) | C7—N1—H1 | 115.0 |
C5—C6—C7 | 131.3 (3) | C8—N1—H1 | 115.0 |
C1—C6—C7 | 109.5 (3) | C7—N2—S1 | 109.9 (2) |
N2—C7—N1 | 122.9 (3) | O2—S1—O1 | 115.88 (17) |
N2—C7—C6 | 116.9 (3) | O2—S1—N2 | 110.41 (16) |
N1—C7—C6 | 120.2 (3) | O1—S1—N2 | 109.76 (16) |
C13—C8—C9 | 119.3 (3) | O2—S1—C1 | 111.86 (17) |
C13—C8—N1 | 123.8 (3) | O1—S1—C1 | 110.64 (17) |
C9—C8—N1 | 116.9 (3) | N2—S1—C1 | 96.63 (15) |
C10—C9—C8 | 119.1 (3) | ||
C6—C1—C2—C3 | −0.3 (6) | Cl1—C10—C11—C12 | 179.7 (3) |
S1—C1—C2—C3 | −179.8 (3) | C10—C11—C12—C13 | −0.3 (6) |
C1—C2—C3—C4 | 0.3 (6) | C11—C12—C13—C8 | 0.6 (6) |
C2—C3—C4—C5 | −0.1 (6) | C9—C8—C13—C12 | −0.5 (5) |
C3—C4—C5—C6 | 0.0 (6) | N1—C8—C13—C12 | 178.3 (3) |
C4—C5—C6—C1 | −0.1 (5) | N2—C7—N1—C8 | 4.0 (6) |
C4—C5—C6—C7 | 178.8 (4) | C6—C7—N1—C8 | −174.8 (3) |
C2—C1—C6—C5 | 0.2 (6) | C13—C8—N1—C7 | −3.2 (6) |
S1—C1—C6—C5 | 179.8 (3) | C9—C8—N1—C7 | 175.6 (3) |
C2—C1—C6—C7 | −178.9 (3) | N1—C7—N2—S1 | −179.4 (3) |
S1—C1—C6—C7 | 0.8 (4) | C6—C7—N2—S1 | −0.6 (4) |
C5—C6—C7—N2 | −179.1 (4) | C7—N2—S1—O2 | −115.4 (3) |
C1—C6—C7—N2 | −0.1 (4) | C7—N2—S1—O1 | 115.7 (3) |
C5—C6—C7—N1 | −0.2 (6) | C7—N2—S1—C1 | 0.9 (3) |
C1—C6—C7—N1 | 178.7 (3) | C2—C1—S1—O2 | −66.3 (4) |
C13—C8—C9—C10 | 0.1 (5) | C6—C1—S1—O2 | 114.1 (3) |
N1—C8—C9—C10 | −178.8 (3) | C2—C1—S1—O1 | 64.5 (4) |
C8—C9—C10—C11 | 0.2 (6) | C6—C1—S1—O1 | −115.0 (3) |
C8—C9—C10—Cl1 | −179.6 (3) | C2—C1—S1—N2 | 178.6 (4) |
C9—C10—C11—C12 | −0.1 (6) | C6—C1—S1—N2 | −1.0 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···N2 | 0.93 | 2.28 | 2.901 (5) | 124 |
N1—H1···O1i | 0.86 | 2.24 | 3.084 (4) | 165 |
C5—H5···O1i | 0.93 | 2.51 | 3.396 (4) | 159 |
C2—H2···O2ii | 0.93 | 2.42 | 3.302 (4) | 158 |
Symmetry codes: (i) x−1, y, z; (ii) −x+3, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C13H9ClN2O2S |
Mr | 292.73 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 7.2223 (10), 7.9138 (12), 11.2175 (17) |
α, β, γ (°) | 96.178 (6), 98.840 (5), 97.574 (5) |
V (Å3) | 622.63 (16) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.47 |
Crystal size (mm) | 0.28 × 0.10 × 0.08 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.947, 0.962 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10481, 2700, 1244 |
Rint | 0.088 |
(sin θ/λ)max (Å−1) | 0.641 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.115, 0.98 |
No. of reflections | 2700 |
No. of parameters | 172 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.25, −0.26 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···N2 | 0.93 | 2.28 | 2.901 (5) | 124 |
N1—H1···O1i | 0.86 | 2.24 | 3.084 (4) | 165 |
C5—H5···O1i | 0.93 | 2.51 | 3.396 (4) | 159 |
C2—H2···O2ii | 0.93 | 2.42 | 3.302 (4) | 158 |
Symmetry codes: (i) x−1, y, z; (ii) −x+3, −y+1, −z+1. |
Acknowledgements
The authors acknowledge the provision of funds for the purchase of diffractometer and encouragement by Dr Muhammad Akram Chaudhary, Vice Chancellor, University of Sargodha. The authors also acknowledge technical support provided by Bana International, Karachi, Pakistan.
References
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Due to the interest in obtaining new derivatives of saccharin (Rafique et al., 2009: Siddiqui et al., 2010), we wish to report the preparation and crystal structure of the title compound (I, Fig. 1).
The crystal structure of (II) N-(1,1-Dioxo-1,2-benzisothiazol-3-yl)-4- methoxyaniline (Brigas et al., 2001) and (III) N-(1,1-Dioxo-1,2-benzisothiazol-3-yl)-3-methylaniline (Brigas et al., 2001) have been published. The title compound differs from (II) and (III) due to attachement of chloro substition on the aniline. In (I), 1,2-benzisothiazol-3-amine A (C–C7/N2/S1) and 3-Chlorophenyl B (C8–C13/CL1) are planar with maximum r. m. s. deviations of 0.0080 Å and 0.0033 Å from the respective mean square planes. The dihedral angle between A/B is 6.00 (12)°. There exists an intramolecular H-bonding of C–H···N type forming S(6) ring motif (Bernstein et al., 1995). The molecules are stabilized in the form of polymeric sheets due to intermolecular H-bondings (Table 1, Fig. 2) completing R21(7) and R22(10) ring motifs. There exist π–π interactions at a distance of 3.733 (2) Å and 3.730 (2) Å, between the centroids of the benzene rings Cg1 (C1—C6) and Cg2 (C8—C13) respectively, [Cg1···Cg1i: i = 2 - x,-y, 1 - z] and [Cg2···Cg2ii: ii = 1 - x,-y, - z].