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The structure of the title compound (4NPMSA), C7H8N2O4S, closely resembles those of N-phenyl­methane­sulfonamide (PMSA) and N-(3-nitro­phen­yl)methane­sulfonamide (4NPMSA), with slightly different geometric parameters. The substitution of a nitro group at the para position of PMSA does not change the space group, unlike the case of meta substitution (3NPMSA), where it changes from monoclinic P21/c to triclinic P\overline{1} [Gowda, Foro & Fuess (2007c). Acta Cryst. E63, o2337]. The N—H H atom and the methyl­sulfonyl group are trans to one another across the plane of the benzene ring. Thus, the amide H atom is available to a receptor mol­ecule during biological activity. An N—H...O hydrogen bond links the mol­ecules into centrosymmetric dimers.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680701598X/lw2006sup1.cif
Contains datablocks I, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S160053680701598X/lw2006Isup2.hkl
Contains datablock I

CCDC reference: 614581

Key indicators

  • Single-crystal X-ray study
  • T = 299 K
  • Mean [sigma](C-C) = 0.007 Å
  • R factor = 0.060
  • wR factor = 0.182
  • Data-to-parameter ratio = 12.8

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT062_ALERT_4_C Rescale T(min) & T(max) by ..................... 1.17 PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 7
Alert level G ABSTM02_ALERT_3_G When printed, the submitted absorption T values will be replaced by the scaled T values. Since the ratio of scaled T's is identical to the ratio of reported T values, the scaling does not imply a change to the absorption corrections used in the study. Ratio of Tmax expected/reported 1.170 Tmax scaled 0.911 Tmin scaled 0.640
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 2 ALERT level C = Check and explain 1 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 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

Comment top

The alkyl sulfonanilide moiety is an important constituent of many biologically significant compounds. The stereochemistry of these molecules, particularly in the vicinity of the phenyl-N—H portion, is of interest in explaining their biological activity. This biological activity is thought to be due to the H atom of the phenyl N—H portion of the sulfonanilide molecules, as it can align itself in relation to a receptor site. Therefore, structural studies of sulfonanilides are of interest. In the present work, the structure of the title compound (4NPMSA) has been determined to explore the substituent effects of polar groups on the structures of anilides and sulfonanilides (Gowda et al., 2007a,b; Gowda et al., 2000; Gowda, Kozisek et al., 2007).

The substitution of a nitro group at the para position of N-(phenyl)methanesulfonamide (PMSA) does not change the space group, unlike in the case of meta substitution (3NPMSA), where it changes from monoclinic P21/c (Klug, 1968) to triclinic P1 (Gowda et al., 2007c).

The N—H H atom projects alone on one side of the plane of the phenyl group, while the whole methanesulfonyl group is on the opposite side of the plane (Fig. 1), similar to what was observed in PMSA (Klug, 1968) and 3NPMSA (Gowda et al., 2007c). The amide H atom is thus available to a receptor molecule during biological activity.

An N—H···O hydrogen bond links the molecules of (I) into centrosymmetric dimers (Table 1 and Fig. 2).

Related literature top

For related literature, see: Gowda et al. (2000); Gowda, Kozisek et al., (2007); Gowda et al., (2007a), (2007b), (2007c); Jayalakshmi & Gowda (2004); Klug (1968).

Experimental top

The title compound was prepared according to the literature method of Jayalakshmi & Gowda (2004). The purity of the compound was checked by determining its melting point. It was characterized by recording its IR and NMR spectra (Jayalakshmi & Gowda, 2004). Single crystals of the title compound were obtained by slow evaporation of an ethanolic solution and used for X-ray diffraction studied at room temperature.

Refinement top

All H atoms attached to C and N atoms were positioned geometrically and treated as riding, with C—H = 0.93 Å (CH aromatic) or 0.96 Å (CH3) and N—H = 0.86 Å, and with Uiso(H) = 1.2Ueq(C,N) or 1.5Ueq(CH3).

Structure description top

The alkyl sulfonanilide moiety is an important constituent of many biologically significant compounds. The stereochemistry of these molecules, particularly in the vicinity of the phenyl-N—H portion, is of interest in explaining their biological activity. This biological activity is thought to be due to the H atom of the phenyl N—H portion of the sulfonanilide molecules, as it can align itself in relation to a receptor site. Therefore, structural studies of sulfonanilides are of interest. In the present work, the structure of the title compound (4NPMSA) has been determined to explore the substituent effects of polar groups on the structures of anilides and sulfonanilides (Gowda et al., 2007a,b; Gowda et al., 2000; Gowda, Kozisek et al., 2007).

The substitution of a nitro group at the para position of N-(phenyl)methanesulfonamide (PMSA) does not change the space group, unlike in the case of meta substitution (3NPMSA), where it changes from monoclinic P21/c (Klug, 1968) to triclinic P1 (Gowda et al., 2007c).

The N—H H atom projects alone on one side of the plane of the phenyl group, while the whole methanesulfonyl group is on the opposite side of the plane (Fig. 1), similar to what was observed in PMSA (Klug, 1968) and 3NPMSA (Gowda et al., 2007c). The amide H atom is thus available to a receptor molecule during biological activity.

An N—H···O hydrogen bond links the molecules of (I) into centrosymmetric dimers (Table 1 and Fig. 2).

For related literature, see: Gowda et al. (2000); Gowda, Kozisek et al., (2007); Gowda et al., (2007a), (2007b), (2007c); Jayalakshmi & Gowda (2004); Klug (1968).

Computing details top

Data collection: CAD-4-PC (Enraf–Nonius, 1996); cell refinement: CAD-4-PC; data reduction: REDU4 (Stoe & Cie, 1987); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97.

Figures top
[Figure 1] Fig. 1. The molecular structure of the title compound, showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level and H atoms are represented as small spheres of arbitrary radii.
[Figure 2] Fig. 2. A packing diagram, viewed down the axis b
N-(4-Nitrophenyl)methanesulfonamide top
Crystal data top
C7H8N2O4SF(000) = 448
Mr = 216.21Dx = 1.561 Mg m3
Monoclinic, P21/cCu Kα radiation, λ = 1.54180 Å
Hall symbol: -P 2ybcCell parameters from 25 reflections
a = 10.879 (2) Åθ = 4.3–24.4°
b = 10.336 (2) ŵ = 3.12 mm1
c = 8.715 (1) ÅT = 299 K
β = 110.13 (1)°Laminar, grey
V = 920.1 (3) Å30.17 × 0.15 × 0.03 mm
Z = 4
Data collection top
Enraf–Nonius CAD-4
diffractometer
1149 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.035
Graphite monochromatorθmax = 66.9°, θmin = 4.3°
ω/2θ scansh = 1212
Absorption correction: ψ scan
(North et al., 1968)
k = 121
Tmin = 0.547, Tmax = 0.778l = 100
1780 measured reflections3 standard reflections every 120 min
1642 independent reflections intensity decay: 3.5%
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.060H-atom parameters constrained
wR(F2) = 0.182 w = 1/[σ2(Fo2) + (0.1074P)2]
where P = (Fo2 + 2Fc2)/3
S = 1.09(Δ/σ)max < 0.001
1642 reflectionsΔρmax = 0.56 e Å3
128 parametersΔρmin = 0.61 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 1997), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0089 (16)
Crystal data top
C7H8N2O4SV = 920.1 (3) Å3
Mr = 216.21Z = 4
Monoclinic, P21/cCu Kα radiation
a = 10.879 (2) ŵ = 3.12 mm1
b = 10.336 (2) ÅT = 299 K
c = 8.715 (1) Å0.17 × 0.15 × 0.03 mm
β = 110.13 (1)°
Data collection top
Enraf–Nonius CAD-4
diffractometer
1149 reflections with I > 2σ(I)
Absorption correction: ψ scan
(North et al., 1968)
Rint = 0.035
Tmin = 0.547, Tmax = 0.7783 standard reflections every 120 min
1780 measured reflections intensity decay: 3.5%
1642 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0600 restraints
wR(F2) = 0.182H-atom parameters constrained
S = 1.09Δρmax = 0.56 e Å3
1642 reflectionsΔρmin = 0.61 e Å3
128 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
C10.6245 (5)0.4037 (5)0.4016 (5)0.0484 (12)
H1A0.57380.38690.47050.058*
H1B0.63650.49530.39510.058*
H1C0.70830.36240.44650.058*
C60.2974 (4)0.4055 (4)0.1995 (5)0.0383 (10)
C70.2810 (5)0.2996 (4)0.2895 (6)0.0454 (11)
H70.34180.23260.31600.054*
C80.1728 (5)0.2953 (5)0.3392 (6)0.0486 (12)
H80.16030.22480.39850.058*
C90.0845 (4)0.3948 (5)0.3008 (6)0.0467 (12)
C100.1012 (5)0.5004 (5)0.2138 (6)0.0521 (12)
H100.04060.56750.18920.063*
C110.2070 (4)0.5065 (5)0.1636 (6)0.0473 (11)
H110.21870.57810.10550.057*
N50.4013 (4)0.4164 (4)0.1407 (5)0.0429 (9)
H5N0.38940.46830.05980.051*
N120.0295 (4)0.3886 (5)0.3520 (6)0.0596 (12)
O30.6074 (3)0.3835 (3)0.0984 (4)0.0535 (9)
O40.5206 (4)0.2075 (3)0.2198 (4)0.0534 (9)
O130.0451 (4)0.2933 (4)0.4271 (6)0.0816 (14)
O140.1055 (4)0.4809 (5)0.3203 (6)0.0847 (14)
S20.54234 (11)0.34283 (10)0.20640 (13)0.0386 (4)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.053 (3)0.055 (3)0.040 (3)0.008 (2)0.019 (2)0.003 (2)
C60.039 (2)0.037 (2)0.036 (2)0.0042 (18)0.0099 (19)0.0023 (18)
C70.044 (3)0.039 (2)0.056 (3)0.001 (2)0.020 (2)0.008 (2)
C80.044 (3)0.048 (3)0.057 (3)0.008 (2)0.021 (2)0.003 (2)
C90.037 (2)0.050 (3)0.055 (3)0.008 (2)0.017 (2)0.009 (2)
C100.045 (2)0.044 (3)0.069 (3)0.004 (2)0.021 (2)0.005 (2)
C110.045 (2)0.037 (2)0.059 (3)0.000 (2)0.018 (2)0.008 (2)
N50.045 (2)0.042 (2)0.046 (2)0.0050 (17)0.0208 (18)0.0135 (17)
N120.048 (2)0.062 (3)0.074 (3)0.015 (2)0.026 (2)0.016 (2)
O30.058 (2)0.065 (2)0.0493 (19)0.0109 (17)0.0337 (17)0.0111 (16)
O40.070 (2)0.0342 (17)0.057 (2)0.0042 (16)0.0222 (18)0.0036 (15)
O130.086 (3)0.066 (3)0.117 (4)0.018 (2)0.066 (3)0.004 (3)
O140.051 (2)0.085 (3)0.129 (4)0.006 (2)0.045 (3)0.003 (3)
S20.0457 (6)0.0369 (6)0.0377 (6)0.0035 (5)0.0202 (4)0.0006 (5)
Geometric parameters (Å, º) top
C1—S21.744 (5)C9—C101.377 (7)
C1—H1A0.9600C9—N121.457 (6)
C1—H1B0.9600C10—C111.366 (6)
C1—H1C0.9600C10—H100.9300
C6—C111.394 (6)C11—H110.9300
C6—C71.394 (6)N5—S21.629 (4)
C6—N51.398 (5)N5—H5N0.8600
C7—C81.388 (7)N12—O131.226 (6)
C7—H70.9300N12—O141.230 (6)
C8—C91.368 (7)O3—S21.422 (3)
C8—H80.9300O4—S21.431 (3)
S2—C1—H1A109.5C11—C10—C9119.9 (5)
S2—C1—H1B109.5C11—C10—H10120.0
H1A—C1—H1B109.5C9—C10—H10120.0
S2—C1—H1C109.5C10—C11—C6120.0 (4)
H1A—C1—H1C109.5C10—C11—H11120.0
H1B—C1—H1C109.5C6—C11—H11120.0
C11—C6—C7119.9 (4)C6—N5—S2128.1 (3)
C11—C6—N5117.1 (4)C6—N5—H5N116.0
C7—C6—N5123.1 (4)S2—N5—H5N116.0
C8—C7—C6119.2 (4)O13—N12—O14122.5 (5)
C8—C7—H7120.4O13—N12—C9119.2 (5)
C6—C7—H7120.4O14—N12—C9118.3 (5)
C9—C8—C7119.9 (5)O3—S2—O4118.5 (2)
C9—C8—H8120.0O3—S2—N5104.6 (2)
C7—C8—H8120.0O4—S2—N5108.9 (2)
C8—C9—C10121.1 (5)O3—S2—C1109.5 (2)
C8—C9—N12119.5 (5)O4—S2—C1108.5 (2)
C10—C9—N12119.4 (5)N5—S2—C1106.2 (2)
C11—C6—C7—C81.3 (7)C11—C6—N5—S2158.9 (4)
N5—C6—C7—C8178.2 (4)C7—C6—N5—S221.5 (6)
C6—C7—C8—C90.6 (7)C8—C9—N12—O130.9 (7)
C7—C8—C9—C100.3 (8)C10—C9—N12—O13178.7 (5)
C7—C8—C9—N12179.3 (4)C8—C9—N12—O14177.9 (5)
C8—C9—C10—C110.4 (8)C10—C9—N12—O142.4 (7)
N12—C9—C10—C11179.3 (5)C6—N5—S2—O3177.0 (4)
C9—C10—C11—C60.4 (8)C6—N5—S2—O449.4 (4)
C7—C6—C11—C101.3 (7)C6—N5—S2—C167.2 (4)
N5—C6—C11—C10178.3 (4)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N5—H5N···O3i0.862.072.914 (5)168
Symmetry code: (i) x+1, y+1, z.

Experimental details

Crystal data
Chemical formulaC7H8N2O4S
Mr216.21
Crystal system, space groupMonoclinic, P21/c
Temperature (K)299
a, b, c (Å)10.879 (2), 10.336 (2), 8.715 (1)
β (°) 110.13 (1)
V3)920.1 (3)
Z4
Radiation typeCu Kα
µ (mm1)3.12
Crystal size (mm)0.17 × 0.15 × 0.03
Data collection
DiffractometerEnraf–Nonius CAD-4
Absorption correctionψ scan
(North et al., 1968)
Tmin, Tmax0.547, 0.778
No. of measured, independent and
observed [I > 2σ(I)] reflections
1780, 1642, 1149
Rint0.035
(sin θ/λ)max1)0.597
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.060, 0.182, 1.09
No. of reflections1642
No. of parameters128
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.56, 0.61

Computer programs: CAD-4-PC (Enraf–Nonius, 1996), CAD-4-PC, REDU4 (Stoe & Cie, 1987), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003), SHELXL97.

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N5—H5N···O3i0.862.072.914 (5)167.5
Symmetry code: (i) x+1, y+1, z.
 

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