organic compounds
N,N-Dimethylacetamide–4-iodobenzenesulfonic acid–water (1/1/1)
aDepartment of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China
*Correspondence e-mail: zhuhj@njut.edu.cn
In the title compound, C6H5IO3S·C4H9NO·H2O, N,N-dimethylacetamide and 4-iodobenzenesulfonic acidmolecules are linked by an intramolecular C—H⋯O hydrogen bond. In the intermolecular O—H⋯O, O—H⋯I and C—H⋯O hydrogen bonds link the molecules.
Related literature
For a related structure, see: Wu et al. (2000). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Data collection: CAD-4 Software (Enraf–Nonius, 1985); cell CAD-4 Software; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supporting information
10.1107/S160053680803701X/hk2535sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680803701X/hk2535Isup2.hkl
Addition of N,N-dimethylacetamide (1.8 ml, 0.02 mol) into 4-iodobenzenesulfonyl chloride (6.1 g, 0.02 mol) gave milk-white solution of innersalt (Wu et al., 2000). The innersalt was dissolved in acetone (20 ml) and placed in moist chamber to crystallize. The crystals were obtained by evaporating solvent slowly at room temperature for about 40 d.
Water H atoms were located in difference syntheses and refined as [O-H = 0.88 (9) Å and 0.94 (9) Å; Uiso(H) = 0.093 Å2]. The remaining H atoms were positioned geometrically, with O-H = 0.85 Å (for OH) and C-H = 0.93 and 0.96 Å for aromatic and methyl H, respectively, and constrained to ride on their parent atoms with Uiso(H) = xUeq(C,O), where x = 1.5 for methyl H and x = 1.2 for all other H atoms.
Data collection: CAD-4 Software (Enraf–Nonius, 1985); cell
CAD-4 Software (Enraf–Nonius, 1985); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. Hydrogen bonds are shown as dashed lines. | |
Fig. 2. A packing diagram of the title compound. Hydrogen bonds are shown as dashed lines. | |
Fig. 3. A packing diagram of the title compound, showing the formation of the supramolecular comb-like structure. For the sake of clarity, water molecules have been omitted. |
C6H5IO3S·C4H9NO·H2O | Dx = 1.774 Mg m−3 |
Mr = 389.21 | Melting point: 363 K |
Orthorhombic, Pca21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2ac | Cell parameters from 25 reflections |
a = 14.173 (3) Å | θ = 10–13° |
b = 7.7480 (15) Å | µ = 2.35 mm−1 |
c = 13.272 (3) Å | T = 294 K |
V = 1457.4 (5) Å3 | Block, colorless |
Z = 4 | 0.30 × 0.20 × 0.10 mm |
F(000) = 768 |
Enraf–Nonius CAD-4 diffractometer | 1096 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.000 |
Graphite monochromator | θmax = 25.9°, θmin = 2.6° |
ω/2θ scans | h = 0→17 |
Absorption correction: ψ scan (North et al., 1968) | k = 0→9 |
Tmin = 0.539, Tmax = 0.799 | l = 0→16 |
1490 measured reflections | 3 standard reflections every 120 min |
1490 independent reflections | intensity decay: none |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.063 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.162 | w = 1/[σ2(Fo2) + (0.1045P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.07 | (Δ/σ)max < 0.001 |
1490 reflections | Δρmax = 1.53 e Å−3 |
172 parameters | Δρmin = −2.42 e Å−3 |
4 restraints | Absolute structure: Flack (1983), 7 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.13 (10) |
C6H5IO3S·C4H9NO·H2O | V = 1457.4 (5) Å3 |
Mr = 389.21 | Z = 4 |
Orthorhombic, Pca21 | Mo Kα radiation |
a = 14.173 (3) Å | µ = 2.35 mm−1 |
b = 7.7480 (15) Å | T = 294 K |
c = 13.272 (3) Å | 0.30 × 0.20 × 0.10 mm |
Enraf–Nonius CAD-4 diffractometer | 1096 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.000 |
Tmin = 0.539, Tmax = 0.799 | 3 standard reflections every 120 min |
1490 measured reflections | intensity decay: none |
1490 independent reflections |
R[F2 > 2σ(F2)] = 0.063 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.162 | Δρmax = 1.53 e Å−3 |
S = 1.07 | Δρmin = −2.42 e Å−3 |
1490 reflections | Absolute structure: Flack (1983), 7 Friedel pairs |
172 parameters | Absolute structure parameter: 0.13 (10) |
4 restraints |
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 | ||
I1 | 0.20688 (5) | 0.25040 (11) | 0.7328 (2) | 0.0505 (3) | |
S | 0.1876 (2) | 0.9056 (4) | 1.0531 (3) | 0.0438 (8) | |
O1W | 0.9586 (8) | 0.1582 (19) | 0.0789 (10) | 0.077 (4) | |
H1WA | 0.914 (10) | 0.084 (19) | 0.065 (17) | 0.093* | |
H1WB | 1.023 (7) | 0.13 (2) | 0.082 (15) | 0.093* | |
O1 | 0.1588 (10) | 0.8396 (14) | 1.1505 (8) | 0.076 (4) | |
O2 | 0.2802 (7) | 0.9782 (15) | 1.0512 (14) | 0.094 (5) | |
H2A | 0.2768 | 1.0848 | 1.0659 | 0.113* | |
O3 | 0.1189 (8) | 1.0230 (11) | 1.0115 (8) | 0.053 (2) | |
O4 | −0.0108 (7) | 0.6431 (14) | 0.7131 (8) | 0.060 (3) | |
N1 | −0.0502 (9) | 0.597 (2) | 0.8736 (12) | 0.070 (4) | |
C1 | 0.1840 (9) | 0.4229 (16) | 0.9376 (10) | 0.041 (3) | |
H1B | 0.1756 | 0.3110 | 0.9613 | 0.050* | |
C2 | 0.1806 (9) | 0.5632 (16) | 1.0022 (10) | 0.043 (3) | |
H2B | 0.1709 | 0.5450 | 1.0706 | 0.051* | |
C3 | 0.1912 (8) | 0.7263 (14) | 0.9674 (11) | 0.034 (3) | |
C4 | 0.2059 (8) | 0.7609 (14) | 0.8682 (12) | 0.038 (3) | |
H4A | 0.2132 | 0.8741 | 0.8461 | 0.046* | |
C5 | 0.2100 (8) | 0.6222 (17) | 0.7992 (10) | 0.044 (3) | |
H5A | 0.2188 | 0.6412 | 0.7306 | 0.053* | |
C6 | 0.2002 (8) | 0.4547 (15) | 0.8381 (10) | 0.038 (3) | |
C7 | −0.0714 (13) | 0.648 (3) | 0.9756 (12) | 0.078 (5) | |
H7A | −0.1176 | 0.7386 | 0.9748 | 0.117* | |
H7B | −0.0149 | 0.6890 | 1.0076 | 0.117* | |
H7C | −0.0956 | 0.5509 | 1.0121 | 0.117* | |
C8 | −0.0515 (12) | 0.407 (2) | 0.8500 (15) | 0.073 (5) | |
H8A | −0.0490 | 0.3903 | 0.7784 | 0.110* | |
H8B | −0.1084 | 0.3562 | 0.8760 | 0.110* | |
H8C | 0.0020 | 0.3519 | 0.8808 | 0.110* | |
C9 | −0.0327 (13) | 0.897 (2) | 0.8184 (15) | 0.072 (5) | |
H9A | 0.0203 | 0.9300 | 0.8590 | 0.107* | |
H9B | −0.0901 | 0.9276 | 0.8522 | 0.107* | |
H9C | −0.0296 | 0.9548 | 0.7546 | 0.107* | |
C10 | −0.0305 (12) | 0.705 (2) | 0.8017 (15) | 0.062 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
I1 | 0.0651 (5) | 0.0364 (4) | 0.0499 (5) | 0.0024 (4) | −0.0001 (8) | −0.0136 (4) |
S | 0.0544 (17) | 0.0296 (14) | 0.0473 (17) | 0.0041 (14) | −0.0096 (18) | −0.0142 (15) |
O1W | 0.054 (6) | 0.103 (10) | 0.075 (9) | 0.002 (7) | 0.005 (6) | −0.025 (8) |
O1 | 0.141 (11) | 0.047 (6) | 0.039 (6) | 0.028 (7) | 0.002 (6) | −0.003 (5) |
O2 | 0.076 (8) | 0.059 (7) | 0.147 (13) | 0.004 (6) | −0.020 (9) | −0.062 (9) |
O3 | 0.062 (6) | 0.035 (5) | 0.060 (6) | 0.008 (4) | −0.006 (5) | −0.011 (4) |
O4 | 0.065 (6) | 0.060 (6) | 0.055 (7) | 0.006 (5) | 0.000 (5) | 0.001 (6) |
N1 | 0.052 (8) | 0.083 (10) | 0.074 (10) | −0.008 (8) | −0.016 (7) | 0.003 (9) |
C1 | 0.057 (7) | 0.024 (6) | 0.043 (7) | −0.009 (6) | 0.001 (6) | 0.000 (5) |
C2 | 0.064 (8) | 0.034 (7) | 0.030 (6) | 0.003 (6) | −0.006 (6) | 0.003 (6) |
C3 | 0.031 (6) | 0.025 (6) | 0.045 (7) | 0.004 (5) | −0.002 (5) | −0.006 (5) |
C4 | 0.049 (7) | 0.017 (5) | 0.048 (8) | −0.001 (5) | 0.000 (6) | −0.003 (5) |
C5 | 0.051 (8) | 0.042 (7) | 0.039 (7) | 0.006 (6) | −0.004 (6) | −0.003 (6) |
C6 | 0.049 (7) | 0.024 (6) | 0.041 (7) | −0.002 (5) | −0.002 (6) | −0.006 (6) |
C7 | 0.082 (12) | 0.101 (15) | 0.051 (10) | −0.005 (11) | 0.018 (9) | −0.004 (10) |
C8 | 0.061 (10) | 0.070 (11) | 0.089 (13) | −0.011 (9) | 0.000 (9) | 0.008 (11) |
C9 | 0.078 (12) | 0.079 (13) | 0.059 (10) | 0.013 (9) | −0.012 (9) | −0.017 (10) |
C10 | 0.060 (10) | 0.060 (10) | 0.066 (11) | −0.002 (8) | −0.018 (9) | 0.009 (9) |
I1—C6 | 2.113 (12) | C2—H2B | 0.9300 |
S—O2 | 1.429 (11) | C3—C4 | 1.36 (2) |
S—O3 | 1.441 (10) | C4—C5 | 1.413 (18) |
S—O1 | 1.449 (12) | C4—H4A | 0.9300 |
S—C3 | 1.796 (12) | C5—C6 | 1.404 (18) |
O1W—H1WA | 0.88 (9) | C5—H5A | 0.9300 |
O1W—H1WB | 0.94 (9) | C7—H7A | 0.9600 |
O2—H2A | 0.8500 | C7—H7B | 0.9600 |
O4—C10 | 1.30 (2) | C7—H7C | 0.9600 |
N1—C10 | 1.30 (2) | C8—H8A | 0.9600 |
N1—C7 | 1.44 (2) | C8—H8B | 0.9600 |
N1—C8 | 1.51 (2) | C8—H8C | 0.9600 |
C1—C6 | 1.363 (19) | C9—C10 | 1.50 (2) |
C1—C2 | 1.386 (17) | C9—H9A | 0.9600 |
C1—H1B | 0.9300 | C9—H9B | 0.9600 |
C2—C3 | 1.354 (17) | C9—H9C | 0.9600 |
O2—S—O3 | 111.4 (8) | C4—C5—H5A | 121.3 |
O2—S—O1 | 114.4 (9) | C1—C6—C5 | 122.7 (12) |
O3—S—O1 | 112.0 (7) | C1—C6—I1 | 120.8 (9) |
O2—S—C3 | 105.5 (6) | C5—C6—I1 | 116.4 (9) |
O3—S—C3 | 105.3 (6) | N1—C7—H7A | 109.5 |
O1—S—C3 | 107.5 (7) | N1—C7—H7B | 109.5 |
H1WA—O1W—H1WB | 125 (10) | H7A—C7—H7B | 109.5 |
S—O2—H2A | 109.0 | N1—C7—H7C | 109.5 |
C10—N1—C7 | 123.8 (18) | H7A—C7—H7C | 109.5 |
C10—N1—C8 | 118.8 (16) | H7B—C7—H7C | 109.5 |
C7—N1—C8 | 117.5 (17) | N1—C8—H8A | 109.5 |
C6—C1—C2 | 117.6 (12) | N1—C8—H8B | 109.5 |
C6—C1—H1B | 121.2 | H8A—C8—H8B | 109.5 |
C2—C1—H1B | 121.2 | N1—C8—H8C | 109.5 |
C3—C2—C1 | 121.2 (13) | H8A—C8—H8C | 109.5 |
C3—C2—H2B | 119.4 | H8B—C8—H8C | 109.5 |
C1—C2—H2B | 119.4 | C10—C9—H9A | 109.5 |
C2—C3—C4 | 122.1 (12) | C10—C9—H9B | 109.5 |
C2—C3—S | 120.2 (11) | H9A—C9—H9B | 109.5 |
C4—C3—S | 117.7 (9) | C10—C9—H9C | 109.5 |
C3—C4—C5 | 118.9 (11) | H9A—C9—H9C | 109.5 |
C3—C4—H4A | 120.5 | H9B—C9—H9C | 109.5 |
C5—C4—H4A | 120.5 | O4—C10—N1 | 118.1 (16) |
C6—C5—C4 | 117.5 (13) | O4—C10—C9 | 120.3 (16) |
C6—C5—H5A | 121.3 | N1—C10—C9 | 121.7 (19) |
C6—C1—C2—C3 | 1 (2) | S—C3—C4—C5 | 179.4 (8) |
C1—C2—C3—C4 | 0 (2) | C3—C4—C5—C6 | −1.2 (17) |
C1—C2—C3—S | −179.4 (10) | C2—C1—C6—C5 | −2 (2) |
O2—S—C3—C2 | 114.1 (12) | C2—C1—C6—I1 | 180.0 (9) |
O3—S—C3—C2 | −127.9 (11) | C4—C5—C6—C1 | 2.3 (18) |
O1—S—C3—C2 | −8.3 (13) | C4—C5—C6—I1 | −179.9 (8) |
O2—S—C3—C4 | −65.0 (13) | C7—N1—C10—O4 | 178.7 (14) |
O3—S—C3—C4 | 52.9 (11) | C8—N1—C10—O4 | −1 (2) |
O1—S—C3—C4 | 172.5 (10) | C7—N1—C10—C9 | −3 (3) |
C2—C3—C4—C5 | 0.3 (19) | C8—N1—C10—C9 | 176.9 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WA···O2i | 0.87 (13) | 1.97 (15) | 2.765 (16) | 151 (14) |
O1W—H1WB···O3ii | 0.94 (10) | 1.85 (15) | 2.657 (16) | 143 (17) |
O2—H2A···I1iii | 0.85 | 2.57 | 3.208 (16) | 133 |
C1—H1B···O3iv | 0.93 | 2.46 | 3.378 (15) | 168 |
C2—H2B···O1 | 0.93 | 2.52 | 2.925 (17) | 106 |
C5—H5A···O1v | 0.93 | 2.55 | 3.192 (17) | 126 |
C8—H8A···O4 | 0.96 | 2.21 | 2.64 (2) | 106 |
C9—H9A···O3 | 0.96 | 2.56 | 3.48 (2) | 161 |
Symmetry codes: (i) x+1/2, −y+1, z−1; (ii) x+1, y−1, z−1; (iii) −x+1/2, y+1, z+1/2; (iv) x, y−1, z; (v) −x+1/2, y, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C6H5IO3S·C4H9NO·H2O |
Mr | 389.21 |
Crystal system, space group | Orthorhombic, Pca21 |
Temperature (K) | 294 |
a, b, c (Å) | 14.173 (3), 7.7480 (15), 13.272 (3) |
V (Å3) | 1457.4 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.35 |
Crystal size (mm) | 0.30 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.539, 0.799 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 1490, 1490, 1096 |
Rint | 0.000 |
(sin θ/λ)max (Å−1) | 0.615 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.063, 0.162, 1.07 |
No. of reflections | 1490 |
No. of parameters | 172 |
No. of restraints | 4 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 1.53, −2.42 |
Absolute structure | Flack (1983), 7 Friedel pairs |
Absolute structure parameter | 0.13 (10) |
Computer programs: CAD-4 Software (Enraf–Nonius, 1985), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2003), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WA···O2i | 0.87 (13) | 1.97 (15) | 2.765 (16) | 151 (14) |
O1W—H1WB···O3ii | 0.94 (10) | 1.85 (15) | 2.657 (16) | 143 (17) |
O2—H2A···I1iii | 0.8500 | 2.5700 | 3.208 (16) | 133.00 |
C1—H1B···O3iv | 0.9300 | 2.4600 | 3.378 (15) | 168.00 |
C2—H2B···O1 | 0.9300 | 2.5200 | 2.925 (17) | 106.00 |
C5—H5A···O1v | 0.9300 | 2.5500 | 3.192 (17) | 126.00 |
C8—H8A···O4 | 0.9600 | 2.2100 | 2.64 (2) | 106.00 |
C9—H9A···O3 | 0.9600 | 2.5600 | 3.48 (2) | 161.00 |
Symmetry codes: (i) x+1/2, −y+1, z−1; (ii) x+1, y−1, z−1; (iii) −x+1/2, y+1, z+1/2; (iv) x, y−1, z; (v) −x+1/2, y, z−1/2. |
Acknowledgements
The authors thank the Center of Testing and Analysis, Nanjing University, for support.
References
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The crystal structure of the title compound with a comb-like structure illustrate the three different components linked by weak interactions based on hydrogen bonds. Furthermore, the hydrolysis mechanism of the innersalt, which was formed from 4-iodobenzenesulfonyl chloride and N,N-dimethylacetamide, was understood (Wu et al., 2000). Meanwhile, the complicated hydrolysate was finally confirmed. We report herein its crystal structure.
The asymmetric unit of the title compound contains N,N-dimethylacetamide, 4-iodobenzenesulfonic acid and water molecules (Fig. 1), in which the bond lengths (Allen et al., 1987) and angles are within normal ranges. Ring A (C1-C6) is, of course, planar. The intramolecular C-H···O hydrogen bonds (Table 1) result in the formation of two nonplanar five-membered rings B (S/O1/C2/C3/H2B) and C (O4/N1/C8/C10/H8A), having envelope conformations with O1 and H8A atoms displaced by 0.193 (3) and 0.194 (3) Å, respectively, from the planes of the other ring atoms.
In the crystal structure, intermolecular O-H···O, O-H···I and C-H···O hydrogen bonds link the molecules (Fig. 2), in which they may be effective in the stabilization of the structure. As can be seen from the packing diagram (Fig. 3), the molecules are stacked along the b axis. The comb-like structure depends on C-H···O hydrogen bonds. The 4-iodobenzenesulfonic acid molecules constitute the main chain and the N,N-dimethylacetamide molecules intermesh to each other as the branches.