Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807051653/sj2379sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807051653/sj2379Isup2.hkl |
CCDC reference: 667432
Thiazolidine-2,4-dione(10 mmol) and 3-nitrobenzaldehyde(10 mmol) were dissolved in ethanol (10 ml) in a 50 mL round-bottomed flask and 5 drops of piperidine were added. The flask was heated in a modified domestic microwave oven at 300 W for 5 minutes. After cooling, the mixture was poured into water, the crude compound (I) filtered out, and recrystallized from ethanol. Crystals of (I) suitable for X-ray diffraction were obtained by slow evaporation of an ethanol solution.
H atoms were positioned geometrically, with N—H = 0.86 Å (for NH) and C—H = 0.93, 0.98 and 0.96 Å for aromatic, methine and methyl H, and constrained to ride on their parent atoms, with Uiso(H) = xUeq(C,N), where x = 1.5 for methyl H, and x = 1.2 for all other H atoms.
Thiazolidines are an important class of heteroaromatic compounds and have widespread applications from pharmaceuticals (Barreca & Balzarini, 2002) to materials (Botti et al., 1996). As part of our studies in this area (Guo et al., 2006), we report herein the synthesis and crystal structure of the title compound, (I).
In the molecule of (I) (Fig. 1), bond lengths and angles are within normal ranges (Allen et al., 1987). Rings A (C1—C6) and B (C8/C10/N/C9/S) are planar and oriented at a dihedral angle of 8.8 (5)° to one another.
In the crystal structure, intramolecular C—H···O and C—H···S hydrogen bonds affect the conformation of the molecule while intermolecular N—H···O and C—H···O hydrogen bonds (Table 1) link the molecules into rows down the a axis (Fig. 2).
For background to thiazolidine compounds, see: Barreca & Balzarini (2002); Botti et al. (1996). For a related structure, see: Guo et al. (2006). For reference structural data, see: Allen et al. (1987).
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell refinement: CAD-4 Software (Enraf–Nonius, 1989); data reduction: XCAD4 (Harms & Wocadlo,1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Siemens,1996); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).
C10H6N2O4S | Z = 2 |
Mr = 250.23 | F(000) = 256 |
Triclinic, P1 | Dx = 1.637 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 4.7270 (9) Å | Cell parameters from 25 reflections |
b = 10.936 (2) Å | θ = 9–13° |
c = 11.276 (2) Å | µ = 0.32 mm−1 |
α = 117.41 (3)° | T = 293 K |
β = 97.93 (3)° | Block, colorless |
γ = 93.36 (3)° | 0.30 × 0.10 × 0.10 mm |
V = 507.6 (2) Å3 |
Enraf–Nonius CAD-4 diffractometer | 1409 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.044 |
Graphite monochromator | θmax = 26.0°, θmin = 2.1° |
ω/2θ scans | h = −5→5 |
Absorption correction: ψ scan (North et al., 1968) | k = −13→11 |
Tmin = 0.909, Tmax = 0.968 | l = 0→13 |
2246 measured reflections | 3 standard reflections every 200 reflections |
1992 independent reflections | intensity decay: none |
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)] = 0.077 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.194 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.05P)2 + 1.7P] where P = (Fo2 + 2Fc2)/3 |
1992 reflections | (Δ/σ)max < 0.001 |
154 parameters | Δρmax = 0.67 e Å−3 |
0 restraints | Δρmin = −0.33 e Å−3 |
C10H6N2O4S | γ = 93.36 (3)° |
Mr = 250.23 | V = 507.6 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 4.7270 (9) Å | Mo Kα radiation |
b = 10.936 (2) Å | µ = 0.32 mm−1 |
c = 11.276 (2) Å | T = 293 K |
α = 117.41 (3)° | 0.30 × 0.10 × 0.10 mm |
β = 97.93 (3)° |
Enraf–Nonius CAD-4 diffractometer | 1409 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.044 |
Tmin = 0.909, Tmax = 0.968 | 3 standard reflections every 200 reflections |
2246 measured reflections | intensity decay: none |
1992 independent reflections |
R[F2 > 2σ(F2)] = 0.077 | 0 restraints |
wR(F2) = 0.194 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.67 e Å−3 |
1992 reflections | Δρmin = −0.33 e Å−3 |
154 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 | ||
S | 0.3581 (3) | 0.59718 (13) | 0.63995 (13) | 0.0598 (4) | |
C1 | −0.3675 (11) | 0.2519 (5) | 0.7606 (5) | 0.0531 (12) | |
N1 | −0.5780 (11) | 0.2091 (4) | 0.8249 (5) | 0.0633 (12) | |
O1 | −0.6747 (10) | 0.0859 (4) | 0.7697 (4) | 0.0766 (12) | |
O2 | −0.6415 (10) | 0.2990 (4) | 0.9278 (4) | 0.0765 (12) | |
N2 | 0.5030 (10) | 0.8520 (4) | 0.8274 (4) | 0.0593 (11) | |
H2A | 0.5898 | 0.9360 | 0.8731 | 0.071* | |
C2 | −0.2926 (12) | 0.1520 (5) | 0.6454 (5) | 0.0568 (13) | |
H2B | −0.3610 | 0.0583 | 0.6112 | 0.068* | |
O3 | 0.7236 (10) | 0.7914 (4) | 0.6431 (4) | 0.0825 (13) | |
C3 | −0.1128 (12) | 0.1953 (5) | 0.5825 (5) | 0.0611 (14) | |
H3A | −0.0614 | 0.1303 | 0.5028 | 0.073* | |
O4 | 0.2315 (9) | 0.8721 (3) | 0.9849 (4) | 0.0656 (11) | |
C4 | −0.0071 (12) | 0.3341 (5) | 0.6359 (5) | 0.0567 (13) | |
H4A | 0.1131 | 0.3610 | 0.5908 | 0.068* | |
C5 | −0.0757 (11) | 0.4342 (5) | 0.7550 (5) | 0.0501 (12) | |
C6 | −0.2752 (11) | 0.3898 (5) | 0.8169 (5) | 0.0533 (12) | |
H6A | −0.3393 | 0.4536 | 0.8934 | 0.064* | |
C7 | 0.0334 (12) | 0.5816 (5) | 0.8209 (5) | 0.0548 (13) | |
H7A | −0.0274 | 0.6345 | 0.9024 | 0.066* | |
C8 | 0.2062 (11) | 0.6537 (5) | 0.7841 (5) | 0.0502 (11) | |
C9 | 0.5580 (12) | 0.7639 (5) | 0.7014 (5) | 0.0586 (13) | |
C10 | 0.3069 (12) | 0.8021 (5) | 0.8776 (5) | 0.0549 (12) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S | 0.0842 (10) | 0.0441 (7) | 0.0461 (7) | 0.0083 (6) | 0.0215 (6) | 0.0146 (6) |
C1 | 0.069 (3) | 0.037 (2) | 0.044 (3) | 0.008 (2) | 0.005 (2) | 0.012 (2) |
N1 | 0.091 (3) | 0.044 (2) | 0.058 (3) | 0.010 (2) | 0.010 (2) | 0.027 (2) |
O1 | 0.101 (3) | 0.044 (2) | 0.080 (3) | −0.002 (2) | 0.017 (2) | 0.027 (2) |
O2 | 0.112 (3) | 0.049 (2) | 0.073 (3) | 0.017 (2) | 0.043 (2) | 0.026 (2) |
N2 | 0.084 (3) | 0.035 (2) | 0.055 (2) | 0.017 (2) | 0.024 (2) | 0.0147 (19) |
C2 | 0.074 (4) | 0.035 (2) | 0.055 (3) | 0.008 (2) | 0.010 (3) | 0.017 (2) |
O3 | 0.113 (3) | 0.062 (2) | 0.078 (3) | 0.007 (2) | 0.052 (3) | 0.029 (2) |
C3 | 0.083 (4) | 0.038 (3) | 0.049 (3) | 0.005 (2) | 0.020 (3) | 0.008 (2) |
O4 | 0.096 (3) | 0.0364 (18) | 0.056 (2) | 0.0065 (17) | 0.032 (2) | 0.0109 (16) |
C4 | 0.076 (4) | 0.043 (3) | 0.046 (3) | 0.013 (2) | 0.019 (2) | 0.015 (2) |
C5 | 0.068 (3) | 0.033 (2) | 0.041 (2) | 0.012 (2) | 0.011 (2) | 0.0099 (19) |
C6 | 0.067 (3) | 0.040 (3) | 0.047 (3) | 0.017 (2) | 0.010 (2) | 0.015 (2) |
C7 | 0.077 (4) | 0.042 (3) | 0.040 (3) | 0.018 (2) | 0.014 (2) | 0.014 (2) |
C8 | 0.067 (3) | 0.036 (2) | 0.046 (3) | 0.013 (2) | 0.017 (2) | 0.015 (2) |
C9 | 0.070 (3) | 0.044 (3) | 0.057 (3) | 0.004 (2) | 0.013 (3) | 0.020 (2) |
C10 | 0.069 (3) | 0.045 (3) | 0.051 (3) | 0.015 (2) | 0.012 (2) | 0.022 (2) |
S—C8 | 1.729 (5) | O3—C9 | 1.197 (6) |
S—C9 | 1.775 (5) | C3—C4 | 1.379 (7) |
C1—C6 | 1.353 (7) | C3—H3A | 0.9300 |
C1—C2 | 1.368 (7) | O4—C10 | 1.215 (6) |
C1—N1 | 1.482 (7) | C4—C5 | 1.384 (6) |
N1—O2 | 1.218 (6) | C4—H4A | 0.9300 |
N1—O1 | 1.220 (5) | C5—C6 | 1.433 (7) |
N2—C10 | 1.359 (7) | C5—C7 | 1.453 (6) |
N2—C9 | 1.374 (6) | C6—H6A | 0.9300 |
N2—H2A | 0.8600 | C7—C8 | 1.334 (7) |
C2—C3 | 1.371 (7) | C7—H7A | 0.9300 |
C2—H2B | 0.9300 | C8—C10 | 1.472 (7) |
C8—S—C9 | 91.7 (2) | C4—C5—C6 | 117.6 (4) |
C6—C1—C2 | 124.7 (5) | C4—C5—C7 | 125.2 (5) |
C6—C1—N1 | 116.8 (4) | C6—C5—C7 | 117.2 (4) |
C2—C1—N1 | 118.4 (4) | C1—C6—C5 | 117.9 (5) |
O2—N1—O1 | 125.4 (5) | C1—C6—H6A | 121.1 |
O2—N1—C1 | 117.7 (4) | C5—C6—H6A | 121.1 |
O1—N1—C1 | 116.9 (4) | C8—C7—C5 | 130.8 (5) |
C10—N2—C9 | 117.8 (4) | C8—C7—H7A | 114.6 |
C10—N2—H2A | 121.1 | C5—C7—H7A | 114.6 |
C9—N2—H2A | 121.1 | C7—C8—C10 | 119.5 (4) |
C1—C2—C3 | 117.3 (5) | C7—C8—S | 129.5 (4) |
C1—C2—H2B | 121.3 | C10—C8—S | 110.9 (4) |
C3—C2—H2B | 121.3 | O3—C9—N2 | 126.1 (5) |
C2—C3—C4 | 120.9 (5) | O3—C9—S | 124.4 (4) |
C2—C3—H3A | 119.6 | N2—C9—S | 109.4 (4) |
C4—C3—H3A | 119.6 | O4—C10—N2 | 123.6 (5) |
C3—C4—C5 | 121.5 (5) | O4—C10—C8 | 126.3 (5) |
C3—C4—H4A | 119.3 | N2—C10—C8 | 110.1 (4) |
C5—C4—H4A | 119.3 | ||
C6—C1—N1—O2 | −3.9 (7) | C6—C5—C7—C8 | −176.0 (5) |
C2—C1—N1—O2 | 179.6 (5) | C5—C7—C8—C10 | −174.0 (5) |
C6—C1—N1—O1 | 175.7 (5) | C5—C7—C8—S | 1.8 (9) |
C2—C1—N1—O1 | −0.7 (7) | C9—S—C8—C7 | −175.0 (5) |
C6—C1—C2—C3 | −0.5 (8) | C9—S—C8—C10 | 1.2 (4) |
N1—C1—C2—C3 | 175.6 (5) | C10—N2—C9—O3 | −180.0 (6) |
C1—C2—C3—C4 | 1.6 (9) | C10—N2—C9—S | −3.0 (6) |
C2—C3—C4—C5 | 0.6 (9) | C8—S—C9—O3 | 177.9 (6) |
C3—C4—C5—C6 | −3.7 (8) | C8—S—C9—N2 | 0.9 (4) |
C3—C4—C5—C7 | 177.8 (5) | C9—N2—C10—O4 | −176.6 (5) |
C2—C1—C6—C5 | −2.6 (8) | C9—N2—C10—C8 | 3.9 (7) |
N1—C1—C6—C5 | −178.8 (4) | C7—C8—C10—O4 | −5.8 (9) |
C4—C5—C6—C1 | 4.6 (7) | S—C8—C10—O4 | 177.6 (5) |
C7—C5—C6—C1 | −176.7 (5) | C7—C8—C10—N2 | 173.6 (5) |
C4—C5—C7—C8 | 2.5 (9) | S—C8—C10—N2 | −3.0 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O4i | 0.86 | 2.00 | 2.846 (6) | 167 |
C4—H4A···S | 0.93 | 2.54 | 3.246 (6) | 132 |
C6—H6A···O2ii | 0.93 | 2.54 | 3.387 (7) | 152 |
C7—H7A···O4 | 0.93 | 2.49 | 2.856 (7) | 104 |
C7—H7A···O2ii | 0.93 | 2.51 | 3.390 (7) | 157 |
Symmetry codes: (i) −x+1, −y+2, −z+2; (ii) −x−1, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C10H6N2O4S |
Mr | 250.23 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 4.7270 (9), 10.936 (2), 11.276 (2) |
α, β, γ (°) | 117.41 (3), 97.93 (3), 93.36 (3) |
V (Å3) | 507.6 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.32 |
Crystal size (mm) | 0.30 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.909, 0.968 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2246, 1992, 1409 |
Rint | 0.044 |
(sin θ/λ)max (Å−1) | 0.616 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.077, 0.194, 1.01 |
No. of reflections | 1992 |
No. of parameters | 154 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.67, −0.33 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1989), XCAD4 (Harms & Wocadlo,1995), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Siemens,1996).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O4i | 0.86 | 2.00 | 2.846 (6) | 167.00 |
C4—H4A···S | 0.93 | 2.54 | 3.246 (6) | 132.00 |
C6—H6A···O2ii | 0.93 | 2.54 | 3.387 (7) | 152.00 |
C7—H7A···O4 | 0.93 | 2.49 | 2.856 (7) | 104.00 |
C7—H7A···O2ii | 0.93 | 2.51 | 3.390 (7) | 157.00 |
Symmetry codes: (i) −x+1, −y+2, −z+2; (ii) −x−1, −y+1, −z+2. |
Thiazolidines are an important class of heteroaromatic compounds and have widespread applications from pharmaceuticals (Barreca & Balzarini, 2002) to materials (Botti et al., 1996). As part of our studies in this area (Guo et al., 2006), we report herein the synthesis and crystal structure of the title compound, (I).
In the molecule of (I) (Fig. 1), bond lengths and angles are within normal ranges (Allen et al., 1987). Rings A (C1—C6) and B (C8/C10/N/C9/S) are planar and oriented at a dihedral angle of 8.8 (5)° to one another.
In the crystal structure, intramolecular C—H···O and C—H···S hydrogen bonds affect the conformation of the molecule while intermolecular N—H···O and C—H···O hydrogen bonds (Table 1) link the molecules into rows down the a axis (Fig. 2).