organic compounds
2-Benzoyl-4-chloroaniline thiosemicarbazone
aEscola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900, Rio Grande-RS, Brazil, bDepartamento de Química, Universidade Federal de Santa Maria, Av. Roraima, Campus, 97105-900, Santa Maria-RS, Brazil, and cDepartamento de Química, Universidade Federal de Sergipe, Av. Marechal Rondon s/n, Campus, 49100-000, São Cristóvão-SE, Brazil
*Correspondence e-mail: leandro_bresolin@yahoo.com.br
In the title compound, C14H13ClN4S, obtained from a reaction of 2-benzoyl-4-chloroaniline with thiosemicarbazide in ethanol, the dihedral angle between the aromatic rings is 81.31 (13)°. In the crystal, the molecules are linked by three N—H⋯S hydrogen bonds, forming centrosymmetric rings with set-graph motif R22(8) and R22(18), and resulting in the formation of a two-dimensional network lying parallel to (010).
CCDC reference: 1002774
Related literature
For the coordination chemistry of thiosemicarbazone compounds, see: Lobana et al. (2009). For one of the first reports of the synthesis of a thiosemicarbazone derivative, see: Freund & Schander (1902). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
|
Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1002774
10.1107/S1600536814011027/bx2459sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814011027/bx2459Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814011027/bx2459Isup3.cml
Starting materials were commercially available and were used without further purification. The synthesis was adapted from a procedure reported previously (Freund & Schander, 1902). The hydrochloric acid catalyzed reaction of 4-chloro-2-benzoylaniline (8,83 mmol) and thiosemicarbazide (8,83 mmol) in ethanol (50 ml) was refluxed for 6 h. After cooling and filtering, the title compound was obtained. Crystals suitable for X-ray diffraction of 4-chloro-2-benzoylaniline thiosemicarbazone were obtained in ethanol by the slow evaporation of the solvent.
All aromatic H atoms were positioned with idealized geometry and were refined isotropic with Uiso(H) = 1.2 Ueq using a riding model with C—H = 0.93 Å. The amine and hydrazine H atoms were located in difference map but were positioned with idealized geometry and refined isotropic with Uiso(H) = 1.2 Ueq using a riding model with N2—H2A = 0.87 (2), N3—H3A = 0.88 (3), N3—H3B = 0.85 (3), N4—H1 = 0.87 (3) and N4—H2 = 0.86 (3) Å.
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. The molecular structure of the title compound with labeling and displacement ellipsoids drawn at the 50% probability level. | |
Fig. 2. Part of the crystal structure of the title compound with view along the b-axis. The hydrogen interactions are shown as dashed lines. |
C14H13ClN4S | F(000) = 1264 |
Mr = 304.79 | Dx = 1.413 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 4016 reflections |
a = 22.46 (5) Å | θ = 2.2–29.8° |
b = 6.773 (14) Å | µ = 0.41 mm−1 |
c = 19.28 (4) Å | T = 298 K |
β = 102.22 (6)° | Needle, yellow |
V = 2866 (10) Å3 | 1.14 × 0.31 × 0.16 mm |
Z = 8 |
Bruker APEXII CCD diffractometer | 4016 independent reflections |
Radiation source: fine-focus sealed tube, Bruker APEX-II CCD | 3348 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.049 |
ϕ and ω scans | θmax = 29.8°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −30→30 |
Tmin = 0.654, Tmax = 0.937 | k = −9→9 |
40582 measured reflections | l = −26→26 |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.115 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.10 | w = 1/[σ2(Fo2) + (0.0481P)2 + 5.8502P] where P = (Fo2 + 2Fc2)/3 |
4016 reflections | (Δ/σ)max < 0.001 |
199 parameters | Δρmax = 0.54 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C14H13ClN4S | V = 2866 (10) Å3 |
Mr = 304.79 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 22.46 (5) Å | µ = 0.41 mm−1 |
b = 6.773 (14) Å | T = 298 K |
c = 19.28 (4) Å | 1.14 × 0.31 × 0.16 mm |
β = 102.22 (6)° |
Bruker APEXII CCD diffractometer | 4016 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3348 reflections with I > 2σ(I) |
Tmin = 0.654, Tmax = 0.937 | Rint = 0.049 |
40582 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.115 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.10 | Δρmax = 0.54 e Å−3 |
4016 reflections | Δρmin = −0.34 e Å−3 |
199 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 | ||
Cl1 | 0.16609 (2) | −0.46293 (7) | −0.09583 (3) | 0.02355 (12) | |
S1 | 0.01214 (2) | −0.54784 (6) | 0.14910 (2) | 0.01662 (11) | |
N1 | 0.11537 (7) | −0.0755 (2) | 0.15219 (8) | 0.0157 (3) | |
N2 | 0.07789 (7) | −0.2359 (2) | 0.12998 (8) | 0.0170 (3) | |
N3 | 0.08055 (7) | −0.3151 (3) | 0.24678 (9) | 0.0193 (3) | |
N4 | 0.05109 (8) | 0.2589 (2) | −0.00573 (9) | 0.0207 (3) | |
C11 | 0.25090 (9) | 0.5202 (3) | 0.16607 (11) | 0.0215 (4) | |
H11 | 0.2774 | 0.6251 | 0.1802 | 0.026* | |
C12 | 0.21147 (8) | 0.4588 (3) | 0.20907 (10) | 0.0199 (4) | |
H12 | 0.2116 | 0.5238 | 0.2516 | 0.024* | |
C13 | 0.17195 (8) | 0.3005 (3) | 0.18844 (10) | 0.0168 (3) | |
H13 | 0.1456 | 0.2606 | 0.2171 | 0.020* | |
C8 | 0.17192 (7) | 0.2011 (2) | 0.12438 (9) | 0.0145 (3) | |
C7 | 0.13232 (7) | 0.0255 (3) | 0.10233 (9) | 0.0146 (3) | |
C1 | 0.11700 (7) | −0.0301 (3) | 0.02510 (9) | 0.0144 (3) | |
C6 | 0.14226 (8) | −0.2037 (3) | 0.00290 (10) | 0.0164 (3) | |
H6 | 0.1655 | −0.2871 | 0.0364 | 0.020* | |
C5 | 0.13252 (8) | −0.2503 (2) | −0.06868 (10) | 0.0165 (3) | |
C4 | 0.09716 (8) | −0.1273 (3) | −0.11973 (10) | 0.0171 (3) | |
H4 | 0.0910 | −0.1587 | −0.1677 | 0.020* | |
C14 | 0.05977 (7) | −0.3555 (2) | 0.17820 (9) | 0.0147 (3) | |
C3 | 0.07136 (8) | 0.0420 (3) | −0.09813 (10) | 0.0167 (3) | |
H3 | 0.0478 | 0.1230 | −0.1321 | 0.020* | |
C2 | 0.08014 (8) | 0.0942 (3) | −0.02549 (10) | 0.0155 (3) | |
C9 | 0.21096 (8) | 0.2656 (3) | 0.08098 (10) | 0.0178 (3) | |
H9 | 0.2105 | 0.2024 | 0.0380 | 0.021* | |
C10 | 0.25047 (9) | 0.4241 (3) | 0.10199 (11) | 0.0215 (4) | |
H10 | 0.2765 | 0.4655 | 0.0732 | 0.026* | |
H1 | 0.0563 (12) | 0.290 (4) | 0.0392 (15) | 0.032* | |
H2 | 0.0420 (12) | 0.354 (4) | −0.0359 (14) | 0.032* | |
H3A | 0.0697 (11) | −0.390 (4) | 0.2792 (13) | 0.024 (6)* | |
H3B | 0.1039 (12) | −0.216 (4) | 0.2583 (14) | 0.031 (7)* | |
H2A | 0.0635 (11) | −0.259 (4) | 0.0853 (13) | 0.023 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0263 (2) | 0.0203 (2) | 0.0249 (2) | 0.00393 (17) | 0.00743 (18) | −0.00452 (17) |
S1 | 0.0159 (2) | 0.0157 (2) | 0.0191 (2) | −0.00251 (15) | 0.00555 (16) | −0.00047 (15) |
N1 | 0.0126 (6) | 0.0153 (7) | 0.0191 (7) | −0.0019 (5) | 0.0032 (5) | 0.0004 (5) |
N2 | 0.0165 (7) | 0.0182 (7) | 0.0156 (7) | −0.0046 (6) | 0.0021 (6) | 0.0005 (6) |
N3 | 0.0207 (8) | 0.0208 (7) | 0.0171 (8) | −0.0050 (6) | 0.0056 (6) | 0.0007 (6) |
N4 | 0.0255 (8) | 0.0197 (7) | 0.0174 (8) | 0.0075 (6) | 0.0052 (6) | 0.0016 (6) |
C11 | 0.0165 (8) | 0.0225 (9) | 0.0247 (10) | −0.0053 (7) | 0.0026 (7) | −0.0028 (7) |
C12 | 0.0188 (8) | 0.0222 (9) | 0.0186 (9) | −0.0016 (7) | 0.0037 (7) | −0.0046 (7) |
C13 | 0.0121 (7) | 0.0201 (8) | 0.0183 (8) | 0.0001 (6) | 0.0038 (6) | 0.0007 (7) |
C8 | 0.0112 (7) | 0.0141 (7) | 0.0177 (8) | 0.0010 (6) | 0.0021 (6) | 0.0018 (6) |
C7 | 0.0111 (7) | 0.0161 (7) | 0.0169 (8) | 0.0014 (6) | 0.0033 (6) | 0.0002 (6) |
C1 | 0.0114 (7) | 0.0157 (7) | 0.0167 (8) | −0.0028 (6) | 0.0045 (6) | −0.0001 (6) |
C6 | 0.0139 (7) | 0.0153 (8) | 0.0199 (9) | −0.0004 (6) | 0.0034 (6) | 0.0012 (6) |
C5 | 0.0142 (7) | 0.0131 (7) | 0.0232 (9) | −0.0011 (6) | 0.0066 (6) | −0.0027 (6) |
C4 | 0.0148 (7) | 0.0200 (8) | 0.0169 (8) | −0.0038 (6) | 0.0047 (6) | −0.0012 (7) |
C14 | 0.0116 (7) | 0.0151 (7) | 0.0181 (8) | 0.0019 (6) | 0.0049 (6) | 0.0011 (6) |
C3 | 0.0135 (7) | 0.0200 (8) | 0.0167 (8) | −0.0009 (6) | 0.0030 (6) | 0.0018 (6) |
C2 | 0.0124 (7) | 0.0156 (7) | 0.0194 (8) | −0.0008 (6) | 0.0057 (6) | 0.0003 (6) |
C9 | 0.0163 (8) | 0.0190 (8) | 0.0193 (9) | −0.0034 (6) | 0.0061 (6) | −0.0029 (7) |
C10 | 0.0185 (8) | 0.0239 (9) | 0.0239 (9) | −0.0068 (7) | 0.0081 (7) | −0.0024 (7) |
Cl1—C5 | 1.756 (3) | C13—C8 | 1.406 (3) |
S1—C14 | 1.704 (3) | C13—H13 | 0.9300 |
N1—C7 | 1.301 (3) | C8—C9 | 1.404 (3) |
N1—N2 | 1.386 (3) | C8—C7 | 1.492 (3) |
N2—C14 | 1.359 (3) | C7—C1 | 1.503 (4) |
N2—H2A | 0.87 (2) | C1—C6 | 1.411 (3) |
N3—C14 | 1.334 (3) | C1—C2 | 1.415 (3) |
N3—H3A | 0.88 (3) | C6—C5 | 1.387 (4) |
N3—H3B | 0.85 (3) | C6—H6 | 0.9300 |
N4—C2 | 1.386 (3) | C5—C4 | 1.401 (3) |
N4—H1 | 0.87 (3) | C4—C3 | 1.387 (3) |
N4—H2 | 0.86 (3) | C4—H4 | 0.9300 |
C11—C10 | 1.395 (4) | C3—C2 | 1.417 (4) |
C11—C12 | 1.398 (3) | C3—H3 | 0.9300 |
C11—H11 | 0.9300 | C9—C10 | 1.397 (3) |
C12—C13 | 1.395 (3) | C9—H9 | 0.9300 |
C12—H12 | 0.9300 | C10—H10 | 0.9300 |
C7—N1—N2 | 115.96 (19) | C6—C1—C7 | 119.12 (16) |
C14—N2—N1 | 120.42 (19) | C2—C1—C7 | 120.74 (19) |
C14—N2—H2A | 118.2 (16) | C5—C6—C1 | 120.16 (16) |
N1—N2—H2A | 121.3 (16) | C5—C6—H6 | 119.9 |
C14—N3—H3A | 119.8 (16) | C1—C6—H6 | 119.9 |
C14—N3—H3B | 119.1 (18) | C6—C5—C4 | 120.66 (19) |
H3A—N3—H3B | 121 (2) | C6—C5—Cl1 | 119.73 (14) |
C2—N4—H1 | 119.6 (18) | C4—C5—Cl1 | 119.60 (18) |
C2—N4—H2 | 118.1 (18) | C3—C4—C5 | 119.4 (2) |
H1—N4—H2 | 117 (3) | C3—C4—H4 | 120.3 |
C10—C11—C12 | 120.0 (2) | C5—C4—H4 | 120.3 |
C10—C11—H11 | 120.0 | N3—C14—N2 | 117.6 (2) |
C12—C11—H11 | 120.0 | N3—C14—S1 | 123.13 (14) |
C13—C12—C11 | 120.3 (2) | N2—C14—S1 | 119.26 (18) |
C13—C12—H12 | 119.9 | C4—C3—C2 | 121.54 (17) |
C11—C12—H12 | 119.9 | C4—C3—H3 | 119.2 |
C12—C13—C8 | 119.99 (18) | C2—C3—H3 | 119.2 |
C12—C13—H13 | 120.0 | N4—C2—C1 | 122.0 (2) |
C8—C13—H13 | 120.0 | N4—C2—C3 | 119.82 (17) |
C9—C8—C13 | 119.38 (19) | C1—C2—C3 | 118.11 (19) |
C9—C8—C7 | 119.21 (18) | C10—C9—C8 | 120.3 (2) |
C13—C8—C7 | 121.40 (17) | C10—C9—H9 | 119.8 |
N1—C7—C8 | 117.31 (19) | C8—C9—H9 | 119.8 |
N1—C7—C1 | 123.96 (19) | C11—C10—C9 | 120.03 (19) |
C8—C7—C1 | 118.65 (15) | C11—C10—H10 | 120.0 |
C6—C1—C2 | 120.1 (2) | C9—C10—H10 | 120.0 |
C7—N1—N2—C14 | 177.28 (15) | C1—C6—C5—C4 | −0.6 (3) |
C10—C11—C12—C13 | 0.5 (3) | C1—C6—C5—Cl1 | 178.09 (13) |
C11—C12—C13—C8 | 0.4 (3) | C6—C5—C4—C3 | −0.5 (3) |
C12—C13—C8—C9 | −1.4 (3) | Cl1—C5—C4—C3 | −179.16 (13) |
C12—C13—C8—C7 | 177.14 (16) | N1—N2—C14—N3 | −1.6 (2) |
N2—N1—C7—C8 | 179.05 (14) | N1—N2—C14—S1 | 178.37 (12) |
N2—N1—C7—C1 | −4.1 (2) | C5—C4—C3—C2 | 0.3 (3) |
C9—C8—C7—N1 | 154.10 (17) | C6—C1—C2—N4 | 175.60 (16) |
C13—C8—C7—N1 | −24.4 (2) | C7—C1—C2—N4 | −7.5 (3) |
C9—C8—C7—C1 | −22.9 (2) | C6—C1—C2—C3 | −2.0 (2) |
C13—C8—C7—C1 | 158.57 (17) | C7—C1—C2—C3 | 174.95 (15) |
N1—C7—C1—C6 | −66.7 (3) | C4—C3—C2—N4 | −176.71 (16) |
C8—C7—C1—C6 | 110.1 (2) | C4—C3—C2—C1 | 0.9 (3) |
N1—C7—C1—C2 | 116.3 (2) | C13—C8—C9—C10 | 1.4 (3) |
C8—C7—C1—C2 | −66.8 (3) | C7—C8—C9—C10 | −177.10 (16) |
C2—C1—C6—C5 | 1.8 (3) | C12—C11—C10—C9 | −0.4 (3) |
C7—C1—C6—C5 | −175.14 (15) | C8—C9—C10—C11 | −0.5 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H1···S1i | 0.87 (3) | 2.75 (3) | 3.534 (6) | 150 (2) |
N4—H2···S1ii | 0.86 (3) | 2.62 (3) | 3.438 (5) | 160 (2) |
N3—H3A···S1iii | 0.88 (3) | 2.74 (3) | 3.552 (5) | 154 (2) |
Symmetry codes: (i) x, y+1, z; (ii) −x, −y, −z; (iii) −x, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H1···S1i | 0.87 (3) | 2.75 (3) | 3.534 (6) | 150 (2) |
N4—H2···S1ii | 0.86 (3) | 2.62 (3) | 3.438 (5) | 160 (2) |
N3—H3A···S1iii | 0.88 (3) | 2.74 (3) | 3.552 (5) | 154 (2) |
Symmetry codes: (i) x, y+1, z; (ii) −x, −y, −z; (iii) −x, y, −z+1/2. |
Acknowledgements
We gratefully thank Professor Dr Manfredo Hörner (Federal University of Santa Maria, Brazil) for his help and support with the X-ray measurements.
References
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2009). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Freund, M. & Schander, A. (1902). Chem. Ber. 35, 2602–2606. CrossRef CAS Google Scholar
Lobana, T. S., Sharma, R., Bawa, G. & Khanna, S. (2009). Coord. Chem. Rev. 253, 977–1055. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
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 are well know as N,S-donors with a wide range of coordination modes (Lobana et al., 2009). As part of our interest on the coordination chemistry of thiosemicarbazone ligands, we report herein the synthesis and the crystal structure of a new ligand with N- and Cl-donor atoms.
The title compound (Fig. 1) is not planar and the dihedral angle between the two aromatic rings amount to 81.31 (13)°. The thiosemicarbazone fragment is almost planar, showing the torsion angle of 178.37 (12)° for the N1/N2/C14/S1 atoms. Additionally, the molecule shows a trans conformation for the atoms about the N1—N2 bond.
The mean deviations from the least squares plane for the aromatic ring with -NH2 and -Cl fragments amount to 0.0371 (12) Å for N4 which implies on a planar geommetry. The N- and Cl-donor atoms can increase the number of coordination modes and the dimensionality of the coordination polymers.
In the title compound, C14H13ClN4S, the molecule is not planar, the dihedral angle between the two aromatic rings amount to 81.31 (13)°. In the crystal structure the molecules are linked by three N—H···S hydrogen bonds (Table 1) interactions forming centrosymmetric rings with set-graph motif R22 (8) and R22 (18) (Bernstein, et al., 1995) and resulting in the formation of a two-dimensional network lying parallel to (010), Fig. 2. (Dolomanov et al., 2009).