organic compounds
1-(5-Nitro-2-oxoindolin-3-ylidene)thiosemicarbazide
aEscola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96201-900 Rio Grande, RS, Brazil, bInstitut für Anorganische Chemie, Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany, and cDepartamento de Química, Universidade Federal de Sergipe, Av. Marechal Rondon s/n, Campus, 49100-000 São Cristóvão, SE, Brazil
*Correspondence e-mail: adriano@daad-alumni.de
In the title molecule, C9H7N5O3S, there is an intramolecular N—H⋯O. The molecule is essentially planar, with the maximum deviation from the mean plane of the 18 non-H atoms being 0.135 (2) Å for the amine N atom. In the crystal, the molecules are connected via intermolecular N—H⋯O and N—H⋯S hydrogen bonds, forming two-dimensional networks lying parallel to (10). They are separated by an interplanar distance of 3.3214 (9) Å, leading to π–π interactions which stabilize the crystal structure.
Related literature
For the pharmacological properties of isatine-thiosemicarbazone derivatives, including the title compound, against cruzain, falcipain-2 and rhodesain, see: Chiyanzu et al. (2003). For the synthesis of 5-nitroisatine-3-thiosemicarbazone, see: Campaigne & Archer (1952). For an example of a similar structure, 5-bromoisatin-thiosemicarbazone, see: Pederzolli et al. (2011).
Experimental
Crystal data
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Refinement
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Data collection: COLLECT (Nonius, 1998); cell DENZO and SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO and SCALEPACK; 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); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536811040293/vm2117sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811040293/vm2117Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811040293/vm2117Isup3.cml
Starting materials were commercially available and were used without further purification. The synthesis was adapted from a procedure reported previously (Campaigne & Archer, 1952). The hydrochloric acid catalyzed reaction of 5-nitroisatin (5,2 mmol) and thiosemicarbazide (5,2 mmol) in ethanol (60 ml) was refluxed for 6 h. After cooling and filtering, crystals suitable for X-ray diffraction were obtained.
All hydrogen atoms were localized in a difference density Fourier map. Their positions and isotropic displacement parameters were refined.
Data collection: COLLECT (Nonius, 1998); cell
DENZO and SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO and SCALEPACK (Otwinowski & Minor, 1997); 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); software used to prepare material for publication: WinGX (Farrugia, 1999).C9H7N5O3S | F(000) = 544 |
Mr = 265.26 | Dx = 1.631 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 26694 reflections |
a = 5.2112 (2) Å | θ = 2.9–27.5° |
b = 15.5354 (5) Å | µ = 0.31 mm−1 |
c = 13.8711 (5) Å | T = 293 K |
β = 105.855 (2)° | Prism, colourless |
V = 1080.25 (7) Å3 | 0.08 × 0.07 × 0.03 mm |
Z = 4 |
Nonius KappaCCD diffractometer | 2469 independent reflections |
Radiation source: fine-focus sealed tube | 1646 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.055 |
Detector resolution: 9 pixels mm-1 | θmax = 27.5°, θmin = 3.0° |
CCD rotation images, thick slices scans | h = −6→6 |
Absorption correction: analytical (Alcock, 1970) | k = −19→20 |
Tmin = 0.966, Tmax = 0.983 | l = −18→17 |
15688 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)] = 0.041 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.108 | All H-atom parameters refined |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0502P)2 + 0.2777P] where P = (Fo2 + 2Fc2)/3 |
2469 reflections | (Δ/σ)max < 0.001 |
191 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.27 e Å−3 |
C9H7N5O3S | V = 1080.25 (7) Å3 |
Mr = 265.26 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 5.2112 (2) Å | µ = 0.31 mm−1 |
b = 15.5354 (5) Å | T = 293 K |
c = 13.8711 (5) Å | 0.08 × 0.07 × 0.03 mm |
β = 105.855 (2)° |
Nonius KappaCCD diffractometer | 2469 independent reflections |
Absorption correction: analytical (Alcock, 1970) | 1646 reflections with I > 2σ(I) |
Tmin = 0.966, Tmax = 0.983 | Rint = 0.055 |
15688 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.108 | All H-atom parameters refined |
S = 1.02 | Δρmax = 0.18 e Å−3 |
2469 reflections | Δρmin = −0.27 e Å−3 |
191 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 | −0.82185 (11) | 0.04442 (3) | 0.13953 (5) | 0.0550 (2) | |
O1 | −0.3758 (3) | 0.30256 (9) | 0.25265 (11) | 0.0497 (4) | |
O2 | 0.8282 (4) | 0.06044 (11) | 0.57143 (16) | 0.0833 (6) | |
O3 | 1.0641 (3) | 0.17173 (11) | 0.62922 (13) | 0.0689 (5) | |
N1 | 0.0324 (3) | 0.34347 (11) | 0.35807 (13) | 0.0456 (4) | |
H4 | −0.001 (5) | 0.3986 (19) | 0.3598 (18) | 0.068 (8)* | |
N2 | 0.8602 (4) | 0.13826 (13) | 0.57750 (14) | 0.0534 (5) | |
N3 | −0.1521 (3) | 0.12472 (10) | 0.31461 (13) | 0.0416 (4) | |
N4 | −0.3969 (3) | 0.12302 (10) | 0.24907 (13) | 0.0438 (4) | |
H5 | −0.481 (5) | 0.1742 (16) | 0.2237 (17) | 0.059 (7)* | |
N5 | −0.3935 (4) | −0.02231 (12) | 0.26970 (16) | 0.0564 (5) | |
H6 | −0.469 (5) | −0.0697 (16) | 0.2592 (18) | 0.059 (7)* | |
H7 | −0.234 (6) | −0.0184 (18) | 0.315 (2) | 0.072 (8)* | |
C1 | 0.2206 (4) | 0.21247 (12) | 0.40888 (14) | 0.0382 (4) | |
C2 | 0.2575 (4) | 0.30160 (12) | 0.41775 (15) | 0.0407 (5) | |
C3 | 0.4895 (4) | 0.33798 (14) | 0.47706 (16) | 0.0473 (5) | |
H1 | 0.519 (5) | 0.3964 (16) | 0.4829 (16) | 0.055 (6)* | |
C4 | 0.6870 (4) | 0.28252 (14) | 0.52923 (16) | 0.0470 (5) | |
H2 | 0.847 (5) | 0.3009 (15) | 0.5747 (17) | 0.058 (6)* | |
C5 | 0.6461 (4) | 0.19440 (13) | 0.52072 (15) | 0.0423 (5) | |
C6 | 0.4156 (4) | 0.15681 (13) | 0.46118 (16) | 0.0430 (5) | |
H3 | 0.394 (4) | 0.0988 (15) | 0.4573 (16) | 0.050 (6)* | |
C7 | −0.0416 (4) | 0.19895 (12) | 0.33974 (14) | 0.0398 (5) | |
C8 | −0.1545 (4) | 0.28607 (12) | 0.30925 (15) | 0.0416 (5) | |
C9 | −0.5237 (4) | 0.04538 (12) | 0.22445 (15) | 0.0420 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S | 0.0442 (3) | 0.0362 (3) | 0.0713 (4) | −0.0030 (2) | −0.0065 (3) | 0.0049 (2) |
O1 | 0.0429 (8) | 0.0369 (7) | 0.0590 (9) | 0.0058 (6) | −0.0035 (7) | −0.0004 (6) |
O2 | 0.0670 (12) | 0.0471 (10) | 0.1111 (15) | 0.0072 (8) | −0.0173 (10) | 0.0094 (10) |
O3 | 0.0427 (9) | 0.0704 (11) | 0.0784 (12) | −0.0001 (8) | −0.0093 (8) | 0.0074 (9) |
N1 | 0.0454 (10) | 0.0282 (8) | 0.0561 (11) | 0.0011 (7) | 0.0019 (8) | −0.0007 (7) |
N2 | 0.0430 (10) | 0.0537 (12) | 0.0571 (11) | 0.0054 (8) | 0.0030 (9) | 0.0054 (9) |
N3 | 0.0381 (9) | 0.0343 (8) | 0.0480 (9) | −0.0002 (7) | 0.0045 (7) | −0.0019 (7) |
N4 | 0.0398 (9) | 0.0309 (8) | 0.0532 (10) | 0.0015 (7) | 0.0002 (8) | −0.0010 (7) |
N5 | 0.0464 (11) | 0.0318 (9) | 0.0769 (14) | −0.0018 (8) | −0.0072 (10) | 0.0044 (9) |
C1 | 0.0392 (10) | 0.0314 (9) | 0.0416 (10) | −0.0009 (8) | 0.0070 (8) | −0.0015 (8) |
C2 | 0.0405 (11) | 0.0342 (10) | 0.0451 (11) | 0.0008 (8) | 0.0080 (9) | −0.0011 (8) |
C3 | 0.0484 (12) | 0.0355 (11) | 0.0541 (13) | −0.0056 (9) | 0.0076 (10) | −0.0060 (9) |
C4 | 0.0415 (11) | 0.0466 (12) | 0.0483 (12) | −0.0038 (9) | 0.0047 (10) | −0.0050 (9) |
C5 | 0.0378 (10) | 0.0432 (11) | 0.0427 (11) | 0.0043 (8) | 0.0055 (9) | 0.0028 (8) |
C6 | 0.0420 (11) | 0.0354 (10) | 0.0485 (12) | 0.0011 (8) | 0.0073 (9) | −0.0002 (9) |
C7 | 0.0412 (11) | 0.0304 (9) | 0.0446 (11) | 0.0024 (8) | 0.0063 (9) | −0.0011 (8) |
C8 | 0.0406 (11) | 0.0344 (10) | 0.0463 (11) | 0.0014 (8) | 0.0058 (9) | −0.0013 (8) |
C9 | 0.0404 (10) | 0.0317 (9) | 0.0506 (12) | 0.0006 (8) | 0.0069 (9) | −0.0014 (8) |
S—C9 | 1.674 (2) | N5—H6 | 0.83 (2) |
O1—C8 | 1.231 (2) | N5—H7 | 0.90 (3) |
O2—N2 | 1.220 (2) | C1—C6 | 1.380 (3) |
O3—N2 | 1.224 (2) | C1—C2 | 1.399 (3) |
N1—C8 | 1.357 (3) | C1—C7 | 1.454 (3) |
N1—C2 | 1.398 (2) | C2—C3 | 1.384 (3) |
N1—H4 | 0.88 (3) | C3—C4 | 1.385 (3) |
N2—C5 | 1.464 (3) | C3—H1 | 0.92 (2) |
N3—C7 | 1.294 (2) | C4—C5 | 1.386 (3) |
N3—N4 | 1.350 (2) | C4—H2 | 0.94 (2) |
N4—C9 | 1.373 (2) | C5—C6 | 1.387 (3) |
N4—H5 | 0.93 (2) | C6—H3 | 0.91 (2) |
N5—C9 | 1.314 (3) | C7—C8 | 1.490 (3) |
C8—N1—C2 | 111.20 (17) | C2—C3—H1 | 123.6 (15) |
C8—N1—H4 | 122.3 (17) | C4—C3—H1 | 118.9 (15) |
C2—N1—H4 | 125.5 (17) | C3—C4—C5 | 119.68 (19) |
O2—N2—O3 | 122.80 (18) | C3—C4—H2 | 123.9 (14) |
O2—N2—C5 | 118.90 (18) | C5—C4—H2 | 116.3 (14) |
O3—N2—C5 | 118.30 (19) | C4—C5—C6 | 123.69 (19) |
C7—N3—N4 | 117.92 (16) | C4—C5—N2 | 117.76 (18) |
N3—N4—C9 | 119.14 (16) | C6—C5—N2 | 118.55 (18) |
N3—N4—H5 | 119.9 (15) | C1—C6—C5 | 116.30 (19) |
C9—N4—H5 | 120.9 (15) | C1—C6—H3 | 122.0 (14) |
C9—N5—H6 | 117.8 (17) | C5—C6—H3 | 121.7 (14) |
C9—N5—H7 | 122.6 (18) | N3—C7—C1 | 125.12 (17) |
H6—N5—H7 | 119 (2) | N3—C7—C8 | 128.38 (17) |
C6—C1—C2 | 120.68 (17) | C1—C7—C8 | 106.45 (15) |
C6—C1—C7 | 132.90 (17) | O1—C8—N1 | 126.92 (18) |
C2—C1—C7 | 106.43 (16) | O1—C8—C7 | 126.75 (17) |
C3—C2—N1 | 128.15 (18) | N1—C8—C7 | 106.32 (16) |
C3—C2—C1 | 122.23 (18) | N5—C9—N4 | 115.68 (18) |
N1—C2—C1 | 109.61 (16) | N5—C9—S | 126.01 (16) |
C2—C3—C4 | 117.42 (19) | N4—C9—S | 118.29 (14) |
C7—N3—N4—C9 | −177.19 (19) | C7—C1—C6—C5 | 179.5 (2) |
C8—N1—C2—C3 | 179.0 (2) | C4—C5—C6—C1 | −0.2 (3) |
C8—N1—C2—C1 | −0.1 (2) | N2—C5—C6—C1 | −179.71 (19) |
C6—C1—C2—C3 | 1.1 (3) | N4—N3—C7—C1 | −179.81 (19) |
C7—C1—C2—C3 | −178.98 (19) | N4—N3—C7—C8 | 3.1 (3) |
C6—C1—C2—N1 | −179.75 (19) | C6—C1—C7—N3 | 2.1 (4) |
C7—C1—C2—N1 | 0.1 (2) | C2—C1—C7—N3 | −177.7 (2) |
N1—C2—C3—C4 | −179.6 (2) | C6—C1—C7—C8 | 179.7 (2) |
C1—C2—C3—C4 | −0.7 (3) | C2—C1—C7—C8 | −0.1 (2) |
C2—C3—C4—C5 | −0.2 (3) | C2—N1—C8—O1 | 178.6 (2) |
C3—C4—C5—C6 | 0.6 (3) | C2—N1—C8—C7 | 0.0 (2) |
C3—C4—C5—N2 | −179.8 (2) | N3—C7—C8—O1 | −1.1 (4) |
O2—N2—C5—C4 | 179.7 (2) | C1—C7—C8—O1 | −178.6 (2) |
O3—N2—C5—C4 | −0.2 (3) | N3—C7—C8—N1 | 177.6 (2) |
O2—N2—C5—C6 | −0.7 (3) | C1—C7—C8—N1 | 0.1 (2) |
O3—N2—C5—C6 | 179.4 (2) | N3—N4—C9—N5 | 1.3 (3) |
C2—C1—C6—C5 | −0.7 (3) | N3—N4—C9—S | −177.56 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H5···O1 | 0.93 (2) | 2.08 (2) | 2.791 (2) | 132.6 (19) |
N5—H6···O1i | 0.83 (2) | 2.13 (3) | 2.957 (2) | 173 (2) |
N5—H7···O2ii | 0.90 (3) | 2.36 (3) | 3.215 (3) | 160 (2) |
N1—H4···Siii | 0.88 (3) | 2.45 (3) | 3.3123 (18) | 170 (2) |
Symmetry codes: (i) −x−1, y−1/2, −z+1/2; (ii) −x+1, −y, −z+1; (iii) −x−1, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C9H7N5O3S |
Mr | 265.26 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 5.2112 (2), 15.5354 (5), 13.8711 (5) |
β (°) | 105.855 (2) |
V (Å3) | 1080.25 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.31 |
Crystal size (mm) | 0.08 × 0.07 × 0.03 |
Data collection | |
Diffractometer | Nonius KappaCCD diffractometer |
Absorption correction | Analytical (Alcock, 1970) |
Tmin, Tmax | 0.966, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15688, 2469, 1646 |
Rint | 0.055 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.108, 1.02 |
No. of reflections | 2469 |
No. of parameters | 191 |
H-atom treatment | All H-atom parameters refined |
Δρmax, Δρmin (e Å−3) | 0.18, −0.27 |
Computer programs: COLLECT (Nonius, 1998), DENZO and SCALEPACK (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H5···O1 | 0.93 (2) | 2.08 (2) | 2.791 (2) | 132.6 (19) |
N5—H6···O1i | 0.83 (2) | 2.13 (3) | 2.957 (2) | 173 (2) |
N5—H7···O2ii | 0.90 (3) | 2.36 (3) | 3.215 (3) | 160 (2) |
N1—H4···Siii | 0.88 (3) | 2.45 (3) | 3.3123 (18) | 170 (2) |
Symmetry codes: (i) −x−1, y−1/2, −z+1/2; (ii) −x+1, −y, −z+1; (iii) −x−1, y+1/2, −z+1/2. |
Acknowledgements
We gratefully acknowledge financial support by the CNPq/FAPERGS.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Thiosemicarbazone derivatives have a wide range of biological properties. For example, isatin-based synthetic thiosemicarbazones show pharmacological activity against cruzain, falcipain-2 and rhodesain (Chiyanzu et al., 2003). As part of our study of thiosemicarbazone derivatives, we report herein the crystal structure of 5-nitroisatin-3-thiosemicarbazone. In the title compound (Fig. 1), the 5-nitroisain-3-thiosemicarbazone unit is planar and the maximal deviation from the least squares plane through all 18 non-hydrogen atoms is observed for N5 (0.135 (2) Å). The best plane through the thiosemicarbazide group (maximal deviation of 0.029 (2) Å for N4) makes an angle of 5.91 (8)° with the best plane through the isatine group (maximal deviation of 0.008 (2) Å for atoms C2, C4, C7). The nitro group is coplanar with the isatine ring (O2—N2—C5—C6 -0.7°). The bond angles suggest sp2 hybridization for the C and N atoms and explain the planarity of the title compound. The crystal packing is stabilized by intermolecular N—H···O and N—H···S (Table 1; N5-H6···O1i, N5-H7···O2ii, N1-H4···Siii) and intramolecular N—H···O1 bonds (Table 1; N4-H5···O1), building a two-dimensional H-bonded network (Fig. 2). The crystal packing is also stabilised by aromatic π–π-interactions between the isatine-thiosemicarbazone derivative molecules. The idealized plane through all 18 non-hydrogen atoms of adjacent molecules have an interplanar distance of 3.3214 (9) Å and are parallel. Symmetry codes: (i) -x-1, y-1/2, -z+1/2; (ii) -x+1, -y, -z+1; (iii) -x-1, y+1/2, -z+1/2.