Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807023045/bt2359sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807023045/bt2359Isup2.hkl |
CCDC reference: 614957
Key indicators
- Single-crystal X-ray study
- T = 294 K
- Mean (C-C) = 0.004 Å
- R factor = 0.038
- wR factor = 0.081
- Data-to-parameter ratio = 14.3
checkCIF/PLATON results
No syntax errors found
Alert level C PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.98 PLAT041_ALERT_1_C Calc. and Rep. SumFormula Strings Differ .... ? PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ .... ? PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............ 0.50 Ratio PLAT764_ALERT_4_C Overcomplete CIF Bond List Detected (Rep/Expd) . 1.47 Ratio PLAT779_ALERT_2_C Suspect or Irrelevant (Bond) Angle in CIF ...... 40.69 Deg. O1 -S1 -NA1 1.555 1.555 4.556
Alert level G PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 7
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 6 ALERT level C = Check and explain 1 ALERT level G = General alerts; check 3 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
For related literature, see: George et al. (2000); Gowda & Kumar (2003); Gowda & Shetty (2004); Gowda et al. (2002, 2005); Gowda, D'Souza & Kumar (2003); Gowda, Jyothi, Kozisek & Fuess (2003); Gowda, Jyothi, Kozisek, Tokarcik & Fuess (2007); Gowda, Srilatha, Foro, Kozisek & Fuess (2007); Olmstead & Power (1986).
The title compound was prepared according to the literature method (Gowda, D'Souza et al., 2003 a). The purity of the compound was checked by determining its melting point. It was characterized by recording its infrared, and NMR spectra (Gowda, D'Souza et al., 2003 a). Single crystals of the title compound were obtained from a slow evaporation of its chloroform solution and used for X-ray diffraction studies at room temperature.
Crystals of the title compound are monoclinic; space group C2/c. H atoms were positioned geometrically and refined using a riding model with C—H = 0.93 Å and with Uiso(H) = 1.2 Ueq(C). No restraints were applied for non-hydrogen atoms. Friedel equivalents were merged prior to the final refinements.
H atoms bonded to O atoms were found in fourier map and finally refined with O—H bond length restrained to 0.82 (1)Å and Uiso(H) = 1.2 Ueq(O).
The chemistry of arylsulfonamides and their N-halo compounds is of interest as they show distinct physical, chemical and biological properties. Many of these compounds exhibit pharmacological, fungicidal and herbicidal activities due to their oxidizing action in aqueous, partial aqueous and non-aqueous media. Thus N-halo arylsulfonamides are of interest in synthetic, mechanistic, analytical and biological chemistry (Gowda & Kumar, 2003; Gowda & Shetty, 2004; Gowda et al., 2002; Gowda et al.,2005; Gowda, Srilatha et al., 2007). In the present work, the structure of sodium N-chloro-2,4-dichlorobenzenesulfonamide has been determined to explore the substituent effects on the solid state structures of sulfonamides and N-halo arylsulfonamides (Gowda, Jyothi et al., 2003; Gowda, Srilatha et al., 2007).
The crystal structure of is complex similar to those of sodium N-chloro-benzenesulfonamide (George et al., 2000), sodium N-chloro-4-chlorobenzenesulfonamide (Gowda, Srilatha, et al., 2007), sodium N-chloro-4-methylbenzenesulfonamide (Olmstead & Power, 1986) and sodium N-chloro-2-methyl-4-chlorobenzenesulfonamide (Gowda, Jyothi et al., 2007). There is no interaction between the nitrogen and sodium atoms in the molecule, and Na+ is attached to one of the sulfonyl oxygen atoms.
The effects of N-chlorination and substitution in the phenyl ring on the structural data of sulfonamides have been considered by comparing the geometric parameters of them. The comparison revealed that on mono N-chlorination of benzenesulfonamide (George et al., 2000) and 4-chlorbenzenesulfonamide (Gowda, Jyothi et al., 2003), the C—S and S—O bond lengths increased marginally, while the S—N bond length remained more or less the same or decreased marginally. Further, N-chlorination of N-chloro-4-chlorobenzenesulfonamide decreases the C—S, S—O and N—Cl, but increased the S—N bond length (Gowda, Jyothi et al., 2007). The introduction of an additional Cl atom to the benzene ring at the ortho position marginally increased the C—S bond length and decreased the S—N bond length, while the S—O and N—Cl bond lengths remained more or less the same. The bond angles also changed on both N-chlorination and introduction of Cl atoms to the benzene ring.
For related literature, see: George et al. (2000); Gowda & Kumar (2003); Gowda & Shetty (2004); Gowda et al. (2002, 2005); Gowda, D'Souza & Kumar (2003); Gowda, Jyothi, Kozisek & Fuess (2003); Gowda, Jyothi, Kozisek, Tokarcik & Fuess (2007); Gowda, Srilatha, Foro, Kozisek & Fuess (2007); Olmstead & Power (1986).
Data collection: CrysAlis CCD (Oxford Diffraction, 2003); cell refinement: CrysAlis RED (Oxford Diffraction, 2003); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002); software used to prepare material for publication: SHELXL97, PLATON (Spek, 2003) and WinGX (Farrugia, 1999).
Fig. 1. ORTEP view of the title compound showing the atom labelling scheme (50% probability displacement ellipsoids) | |
Fig. 2. Packing diagram of the title compound viewed down the axis b. |
Na+·C6H3Cl3NO2S−·1.5H2O | F(000) = 1240.0 |
Mr = 309.52 | Dx = 1.834 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 3687 reflections |
a = 11.033 (2) Å | θ = 3.6–30.1° |
b = 6.7410 (13) Å | µ = 1.04 mm−1 |
c = 30.187 (6) Å | T = 294 K |
β = 98.51 (3)° | Block, yellow |
V = 2220.4 (8) Å3 | 0.46 × 0.32 × 0.16 mm |
Z = 8 |
Oxford Diffraction Xcalibur System diffractometer | 2162 independent reflections |
Radiation source: fine-focus sealed tube | 1872 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.047 |
Rotation method data acquisition using ω and phi scans | θmax = 26.2°, θmin = 6.8° |
Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2003) | h = −13→13 |
Tmin = 0.646, Tmax = 0.851 | k = 0→8 |
3256 measured reflections | l = 0→37 |
Refinement on F2 | H atoms treated by a mixture of independent and constrained refinement |
Least-squares matrix: full | w = 1/[σ2(Fo2) + (0.0305P)2 + 4.9463P] where P = (Fo2 + 2Fc2)/3 |
R[F2 > 2σ(F2)] = 0.038 | (Δ/σ)max = 0.001 |
wR(F2) = 0.081 | Δρmax = 0.40 e Å−3 |
S = 1.09 | Δρmin = −0.41 e Å−3 |
2162 reflections | Extinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
151 parameters | Extinction coefficient: 0.0083 (6) |
7 restraints |
Na+·C6H3Cl3NO2S−·1.5H2O | V = 2220.4 (8) Å3 |
Mr = 309.52 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 11.033 (2) Å | µ = 1.04 mm−1 |
b = 6.7410 (13) Å | T = 294 K |
c = 30.187 (6) Å | 0.46 × 0.32 × 0.16 mm |
β = 98.51 (3)° |
Oxford Diffraction Xcalibur System diffractometer | 2162 independent reflections |
Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2003) | 1872 reflections with I > 2σ(I) |
Tmin = 0.646, Tmax = 0.851 | Rint = 0.047 |
3256 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 7 restraints |
wR(F2) = 0.081 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.09 | Δρmax = 0.40 e Å−3 |
2162 reflections | Δρmin = −0.41 e Å−3 |
151 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. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.3266 (2) | 0.3152 (3) | 0.61865 (8) | 0.0221 (5) | |
C2 | 0.4082 (2) | 0.3777 (4) | 0.59049 (8) | 0.0260 (5) | |
C3 | 0.3651 (3) | 0.4513 (4) | 0.54803 (9) | 0.0348 (6) | |
H3 | 0.4198 | 0.4937 | 0.5293 | 0.042* | |
C4 | 0.2411 (3) | 0.4607 (4) | 0.53402 (9) | 0.0374 (7) | |
C5 | 0.1587 (3) | 0.4044 (5) | 0.56120 (10) | 0.0413 (7) | |
H5 | 0.0749 | 0.4146 | 0.5514 | 0.05* | |
C6 | 0.2020 (2) | 0.3320 (4) | 0.60359 (9) | 0.0329 (6) | |
H6 | 0.1463 | 0.2939 | 0.6223 | 0.039* | |
N1 | 0.46541 (19) | 0.0345 (3) | 0.66974 (7) | 0.0267 (5) | |
O1 | 0.44434 (16) | 0.3586 (3) | 0.70026 (6) | 0.0317 (4) | |
O2 | 0.25872 (17) | 0.1563 (3) | 0.68763 (6) | 0.0359 (5) | |
S1 | 0.37271 (5) | 0.21142 (9) | 0.672848 (19) | 0.02257 (18) | |
Cl1 | 0.39467 (6) | −0.15130 (10) | 0.63434 (2) | 0.0345 (2) | |
Cl2 | 0.56526 (6) | 0.36763 (12) | 0.60616 (3) | 0.0424 (2) | |
Cl3 | 0.18902 (9) | 0.53791 (12) | 0.47951 (3) | 0.0579 (3) | |
Na1 | 0.14565 (9) | −0.00688 (16) | 0.73657 (3) | 0.0328 (3) | |
O3 | 0 | 0.2632 (4) | 0.75 | 0.0346 (6) | |
H31 | −0.010 (3) | 0.339 (3) | 0.7290 (7) | 0.041* | |
O4 | 0.28754 (17) | 0.1707 (3) | 0.79286 (6) | 0.0350 (5) | |
H41 | 0.247 (2) | 0.196 (4) | 0.8128 (6) | 0.042* | |
H42 | 0.3478 (17) | 0.111 (4) | 0.8039 (8) | 0.042* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0252 (12) | 0.0203 (12) | 0.0208 (11) | 0.0009 (10) | 0.0029 (9) | −0.0014 (9) |
C2 | 0.0301 (13) | 0.0220 (12) | 0.0255 (12) | −0.0008 (10) | 0.0031 (10) | −0.0002 (10) |
C3 | 0.0514 (18) | 0.0274 (14) | 0.0264 (13) | −0.0040 (13) | 0.0084 (12) | 0.0034 (11) |
C4 | 0.0562 (19) | 0.0245 (14) | 0.0272 (13) | 0.0024 (13) | −0.0080 (13) | 0.0030 (11) |
C5 | 0.0357 (16) | 0.0397 (16) | 0.0429 (17) | 0.0060 (13) | −0.0124 (13) | 0.0002 (14) |
C6 | 0.0288 (14) | 0.0348 (15) | 0.0343 (14) | 0.0027 (11) | 0.0025 (11) | 0.0006 (12) |
N1 | 0.0279 (11) | 0.0251 (11) | 0.0259 (11) | 0.0004 (9) | −0.0003 (9) | −0.0017 (9) |
O1 | 0.0341 (10) | 0.0343 (10) | 0.0258 (9) | −0.0022 (8) | 0.0010 (8) | −0.0077 (8) |
O2 | 0.0307 (10) | 0.0484 (12) | 0.0314 (10) | −0.0019 (9) | 0.0142 (8) | 0.0066 (9) |
S1 | 0.0237 (3) | 0.0258 (3) | 0.0183 (3) | −0.0003 (2) | 0.0035 (2) | −0.0003 (2) |
Cl1 | 0.0408 (4) | 0.0289 (4) | 0.0344 (4) | −0.0029 (3) | 0.0080 (3) | −0.0068 (3) |
Cl2 | 0.0277 (4) | 0.0522 (5) | 0.0487 (4) | −0.0044 (3) | 0.0104 (3) | 0.0122 (4) |
Cl3 | 0.0932 (7) | 0.0384 (4) | 0.0331 (4) | −0.0024 (4) | −0.0209 (4) | 0.0076 (3) |
Na1 | 0.0320 (6) | 0.0350 (6) | 0.0330 (6) | −0.0054 (4) | 0.0105 (4) | 0.0002 (5) |
O3 | 0.0487 (16) | 0.0275 (15) | 0.0256 (14) | 0 | −0.0007 (12) | 0 |
O4 | 0.0287 (10) | 0.0442 (12) | 0.0321 (10) | 0.0026 (9) | 0.0047 (8) | −0.0021 (9) |
C1—C6 | 1.387 (4) | O2—S1 | 1.4440 (19) |
C1—C2 | 1.392 (3) | O2—Na1 | 2.344 (2) |
C1—S1 | 1.783 (2) | S1—Na1i | 3.3597 (13) |
C2—C3 | 1.391 (4) | Na1—O4 | 2.446 (2) |
C2—Cl2 | 1.729 (3) | Na1—O1iii | 2.450 (2) |
C3—C4 | 1.372 (4) | Na1—O1iv | 2.497 (2) |
C3—H3 | 0.93 | Na1—O4iii | 2.500 (2) |
C4—C5 | 1.366 (4) | Na1—O3 | 2.501 (2) |
C4—Cl3 | 1.741 (3) | Na1—S1iii | 3.3597 (13) |
C5—C6 | 1.387 (4) | Na1—Na1v | 3.429 (2) |
C5—H5 | 0.93 | Na1—Na1i | 4.0948 (13) |
C6—H6 | 0.93 | Na1—Na1iii | 4.0948 (13) |
N1—S1 | 1.583 (2) | O3—Na1v | 2.501 (2) |
N1—Cl1 | 1.753 (2) | O3—H31 | 0.809 (10) |
O1—S1 | 1.4493 (18) | O4—Na1i | 2.500 (2) |
O1—Na1i | 2.450 (2) | O4—H41 | 0.817 (10) |
O1—Na1ii | 2.497 (2) | O4—H42 | 0.806 (10) |
C6—C1—C2 | 118.3 (2) | O4—Na1—O3 | 83.78 (6) |
C6—C1—S1 | 117.86 (19) | O1iii—Na1—O3 | 78.42 (6) |
C2—C1—S1 | 123.82 (19) | O1iv—Na1—O3 | 77.55 (6) |
C3—C2—C1 | 120.5 (2) | O4iii—Na1—O3 | 157.05 (7) |
C3—C2—Cl2 | 117.3 (2) | O2—Na1—S1iii | 151.64 (6) |
C1—C2—Cl2 | 122.25 (19) | O4—Na1—S1iii | 79.67 (6) |
C4—C3—C2 | 119.3 (3) | O1iii—Na1—S1iii | 22.68 (4) |
C4—C3—H3 | 120.3 | O1iv—Na1—S1iii | 89.73 (6) |
C2—C3—H3 | 120.3 | O4iii—Na1—S1iii | 81.63 (6) |
C5—C4—C3 | 121.6 (3) | O3—Na1—S1iii | 99.33 (5) |
C5—C4—Cl3 | 119.7 (2) | O2—Na1—Na1v | 138.93 (7) |
C3—C4—Cl3 | 118.7 (2) | O4—Na1—Na1v | 111.20 (6) |
C4—C5—C6 | 118.9 (3) | O1iii—Na1—Na1v | 46.70 (5) |
C4—C5—H5 | 120.6 | O1iv—Na1—Na1v | 45.57 (5) |
C6—C5—H5 | 120.6 | O4iii—Na1—Na1v | 114.84 (5) |
C5—C6—C1 | 121.4 (3) | O3—Na1—Na1v | 46.72 (5) |
C5—C6—H6 | 119.3 | S1iii—Na1—Na1v | 68.66 (4) |
C1—C6—H6 | 119.3 | O2—Na1—Na1i | 53.30 (6) |
S1—N1—Cl1 | 109.95 (12) | O4—Na1—Na1i | 34.54 (5) |
S1—O1—Na1i | 116.63 (10) | O1iii—Na1—Na1i | 115.54 (6) |
S1—O1—Na1ii | 150.88 (11) | O1iv—Na1—Na1i | 145.42 (6) |
Na1i—O1—Na1ii | 87.74 (7) | O4iii—Na1—Na1i | 126.81 (6) |
S1—O2—Na1 | 152.22 (13) | O3—Na1—Na1i | 74.01 (5) |
O2—S1—O1 | 115.22 (11) | S1iii—Na1—Na1i | 113.82 (5) |
O2—S1—N1 | 115.11 (12) | Na1v—Na1—Na1i | 118.20 (3) |
O1—S1—N1 | 104.31 (11) | O2—Na1—Na1iii | 100.07 (7) |
O2—S1—C1 | 103.96 (11) | O4—Na1—Na1iii | 88.97 (7) |
O1—S1—C1 | 108.23 (11) | O1iii—Na1—Na1iii | 79.75 (5) |
N1—S1—C1 | 109.90 (11) | O1iv—Na1—Na1iii | 103.04 (5) |
O2—S1—Na1i | 74.56 (9) | O4iii—Na1—Na1iii | 33.70 (4) |
O1—S1—Na1i | 40.69 (8) | O3—Na1—Na1iii | 157.39 (5) |
N1—S1—Na1i | 126.25 (8) | S1iii—Na1—Na1iii | 58.23 (3) |
C1—S1—Na1i | 118.80 (8) | Na1v—Na1—Na1iii | 118.20 (3) |
O2—Na1—O4 | 82.10 (8) | Na1i—Na1—Na1iii | 110.80 (5) |
O2—Na1—O1iii | 168.19 (8) | Na1v—O3—Na1 | 86.55 (10) |
O4—Na1—O1iii | 86.09 (7) | Na1v—O3—H31 | 125 (2) |
O2—Na1—O1iv | 114.55 (8) | Na1—O3—H31 | 110 (2) |
O4—Na1—O1iv | 156.75 (8) | Na1—O4—Na1i | 111.76 (8) |
O1iii—Na1—O1iv | 76.75 (8) | Na1—O4—H41 | 104.5 (19) |
O2—Na1—O4iii | 88.36 (8) | Na1i—O4—H41 | 108 (2) |
O4—Na1—O4iii | 118.70 (6) | Na1—O4—H42 | 117 (2) |
O1iii—Na1—O4iii | 97.45 (7) | Na1i—O4—H42 | 108 (2) |
O1iv—Na1—O4iii | 79.53 (7) | H41—O4—H42 | 108 (2) |
O2—Na1—O3 | 100.09 (8) | ||
C6—C1—C2—C3 | −1.3 (4) | C2—C1—S1—O1 | 61.2 (2) |
S1—C1—C2—C3 | 177.9 (2) | C6—C1—S1—N1 | 127.0 (2) |
C6—C1—C2—Cl2 | 178.9 (2) | C2—C1—S1—N1 | −52.1 (2) |
S1—C1—C2—Cl2 | −2.0 (3) | C6—C1—S1—Na1i | −76.5 (2) |
C1—C2—C3—C4 | −0.4 (4) | C2—C1—S1—Na1i | 104.3 (2) |
Cl2—C2—C3—C4 | 179.5 (2) | S1—O2—Na1—O4 | 51.6 (3) |
C2—C3—C4—C5 | 1.8 (4) | S1—O2—Na1—O1iii | 52.1 (6) |
C2—C3—C4—Cl3 | −175.9 (2) | S1—O2—Na1—O1iv | −145.4 (3) |
C3—C4—C5—C6 | −1.5 (4) | S1—O2—Na1—O4iii | −67.7 (3) |
Cl3—C4—C5—C6 | 176.1 (2) | S1—O2—Na1—O3 | 133.8 (3) |
C4—C5—C6—C1 | −0.2 (4) | S1—O2—Na1—S1iii | 1.2 (4) |
C2—C1—C6—C5 | 1.6 (4) | S1—O2—Na1—Na1v | 165.0 (2) |
S1—C1—C6—C5 | −177.6 (2) | S1—O2—Na1—Na1i | 72.6 (3) |
Na1—O2—S1—O1 | −73.5 (3) | S1—O2—Na1—Na1iii | −35.9 (3) |
Na1—O2—S1—N1 | 47.9 (3) | O2—Na1—O3—Na1v | 152.16 (7) |
Na1—O2—S1—C1 | 168.2 (3) | O4—Na1—O3—Na1v | −127.04 (6) |
Na1—O2—S1—Na1i | −75.3 (3) | O1iii—Na1—O3—Na1v | −39.77 (5) |
Na1i—O1—S1—O2 | −2.58 (16) | O1iv—Na1—O3—Na1v | 39.03 (5) |
Na1ii—O1—S1—O2 | 141.4 (2) | O4iii—Na1—O3—Na1v | 41.92 (16) |
Na1i—O1—S1—N1 | −129.75 (11) | S1iii—Na1—O3—Na1v | −48.61 (3) |
Na1ii—O1—S1—N1 | 14.3 (3) | Na1i—Na1—O3—Na1v | −160.87 (5) |
Na1i—O1—S1—C1 | 113.26 (12) | Na1iii—Na1—O3—Na1v | −55.04 (13) |
Na1ii—O1—S1—C1 | −102.7 (2) | O2—Na1—O4—Na1i | 30.41 (8) |
Na1ii—O1—S1—Na1i | 144.0 (3) | O1iii—Na1—O4—Na1i | −149.48 (8) |
Cl1—N1—S1—O2 | 56.49 (15) | O1iv—Na1—O4—Na1i | −107.28 (19) |
Cl1—N1—S1—O1 | −176.27 (11) | O4iii—Na1—O4—Na1i | 114.16 (12) |
Cl1—N1—S1—C1 | −60.44 (15) | O3—Na1—O4—Na1i | −70.72 (7) |
Cl1—N1—S1—Na1i | 145.30 (7) | S1iii—Na1—O4—Na1i | −171.42 (8) |
C6—C1—S1—O2 | 3.3 (2) | Na1v—Na1—O4—Na1i | −109.28 (7) |
C2—C1—S1—O2 | −175.8 (2) | Na1iii—Na1—O4—Na1i | 130.72 (8) |
C6—C1—S1—O1 | −119.6 (2) |
Symmetry codes: (i) −x+1/2, y+1/2, −z+3/2; (ii) x+1/2, y+1/2, z; (iii) −x+1/2, y−1/2, −z+3/2; (iv) x−1/2, y−1/2, z; (v) −x, y, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | Na+·C6H3Cl3NO2S−·1.5H2O |
Mr | 309.52 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 294 |
a, b, c (Å) | 11.033 (2), 6.7410 (13), 30.187 (6) |
β (°) | 98.51 (3) |
V (Å3) | 2220.4 (8) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 1.04 |
Crystal size (mm) | 0.46 × 0.32 × 0.16 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur System |
Absorption correction | Analytical (CrysAlis RED; Oxford Diffraction, 2003) |
Tmin, Tmax | 0.646, 0.851 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3256, 2162, 1872 |
Rint | 0.047 |
(sin θ/λ)max (Å−1) | 0.621 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.081, 1.09 |
No. of reflections | 2162 |
No. of parameters | 151 |
No. of restraints | 7 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.40, −0.41 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2003), CrysAlis RED (Oxford Diffraction, 2003), CrysAlis RED, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2002), SHELXL97, PLATON (Spek, 2003) and WinGX (Farrugia, 1999).
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The chemistry of arylsulfonamides and their N-halo compounds is of interest as they show distinct physical, chemical and biological properties. Many of these compounds exhibit pharmacological, fungicidal and herbicidal activities due to their oxidizing action in aqueous, partial aqueous and non-aqueous media. Thus N-halo arylsulfonamides are of interest in synthetic, mechanistic, analytical and biological chemistry (Gowda & Kumar, 2003; Gowda & Shetty, 2004; Gowda et al., 2002; Gowda et al.,2005; Gowda, Srilatha et al., 2007). In the present work, the structure of sodium N-chloro-2,4-dichlorobenzenesulfonamide has been determined to explore the substituent effects on the solid state structures of sulfonamides and N-halo arylsulfonamides (Gowda, Jyothi et al., 2003; Gowda, Srilatha et al., 2007).
The crystal structure of is complex similar to those of sodium N-chloro-benzenesulfonamide (George et al., 2000), sodium N-chloro-4-chlorobenzenesulfonamide (Gowda, Srilatha, et al., 2007), sodium N-chloro-4-methylbenzenesulfonamide (Olmstead & Power, 1986) and sodium N-chloro-2-methyl-4-chlorobenzenesulfonamide (Gowda, Jyothi et al., 2007). There is no interaction between the nitrogen and sodium atoms in the molecule, and Na+ is attached to one of the sulfonyl oxygen atoms.
The effects of N-chlorination and substitution in the phenyl ring on the structural data of sulfonamides have been considered by comparing the geometric parameters of them. The comparison revealed that on mono N-chlorination of benzenesulfonamide (George et al., 2000) and 4-chlorbenzenesulfonamide (Gowda, Jyothi et al., 2003), the C—S and S—O bond lengths increased marginally, while the S—N bond length remained more or less the same or decreased marginally. Further, N-chlorination of N-chloro-4-chlorobenzenesulfonamide decreases the C—S, S—O and N—Cl, but increased the S—N bond length (Gowda, Jyothi et al., 2007). The introduction of an additional Cl atom to the benzene ring at the ortho position marginally increased the C—S bond length and decreased the S—N bond length, while the S—O and N—Cl bond lengths remained more or less the same. The bond angles also changed on both N-chlorination and introduction of Cl atoms to the benzene ring.